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vitesse semiconductor corporation preliminary data sheet VSC837 3.2gb/s 68x68 crosspoint switch g52309-0, rev 3.0 page 1 02/16/01 ? vitesse semiconductor corporation ? 741 calle plano camarillo, ca 93012 tel: (800) vitesse fax: (805) 987-5896 email: prodinfo@vitesse.com internet: www.vitesse.com features general description the VSC837 is a monolithic 68x68 asynchronous crosspoint switch, designed to carry broadband data streams. the non-blocking switch core is programmed through a triple-mode port interface that allows random access programming of each input/output port. a high degree of signal integrity is maintained throughout the chip via fully differential signal paths. the crosspoint function is based on a multiplexer array architecture. each data output is driven by a 68:1 multiplexer that can be programmed to one and only one of its 68 inputs. the signal path is unregistered and fully asynchronous, so there are no restrictions on the phase, frequency, or signal pattern at each input. each high-speed output is a fully differential switched current driver with switchable on-die terminations for maximum signal integrity. data inputs are terminated on die through 100 ? resistors between true and com- plement inputs (see input termination section for further detail). a triple-mode programming interface is provided that allows programming commands to be sent as serial data or one of two forms of parallel data. the input-referred mode (burst mode) allows an input port to be routed to all outputs in only 4 program cycles. core programming can be random for each port address, or multiple program assignments can be queued and issued simultaneously. the programming may be initialized to a ?straight-through? configuration (a0 to y0, a1 to y1, etc.) using the initb pin. an activity monitor is provided to allow in-system diagnostics. the activity monitor can observe any high- speed input via an internal 69th multiplexer. unused channels may be powered down to allow efficient use of the switch in applications that require only a subset of the channels. power-down can be accomplished in hardware, via dedicated power pins for pairs of input and output channels, or in software by programming individual unused outputs with a disable code. VSC837 block diagram 68 input by 68 output crosspoint switch 3.2gb/s nrz data bandwidth 66mhz multi-mode programming port ttl/2.5v cmos control i/o (3.3v tolerant) programmable on-chip i/o termination input signal activity (isa) monitoring function integrated signal equalization (ise) for deterministic jitter reduction single 2.5v supply differential cml output driver 11w typ/14w max (low drive mode) 13w typ/16w max (high drive mode) hard and soft power-down for unused channels high performance 37.5mm, 480 tbga package 2 2 2 2 a0 a67 y0 y67 p control
vitesse semiconductor corporation preliminary data sheet VSC837 3.2gb/s 68x68 crosspoint switch page 2 g52309-0, rev 3.0 02/16/01 ? vitesse semiconductor corporation 741 calle plano camarillo, ca 93012 tel: (800) vitesse fax: (805) 987-5896 email: prodinfo@vitesse.com internet: www.vitesse.com functional block diagram functional description input / output characteristics all input data must be differential and should be nominally biased to +2.0v or ac-coupled. other levels are allowed as described under the input termination section. on-chip terminations are provided, with a nomi- nal impedance of 100 ? differential. all input termination resistors float with an internal bias provided for ac- coupling. for direct interconnection of multiple VSC837 devices, a cml termination mode is provided by tying the itc pin to v cc , which ties the center point of the 100 ? termination to v cc , causing the terminations to act as loads for an open-drain or open-collector differential output. data outputs are provided through differential current switches with on-chip back-termination. the output circuit is capable of driving external 50 ? far-end termination (recommended). the output back-terminations are electronically switchable to enable a power savings of 2w (max) by reducing the output driver current. 68x69 switch core core program registers config initb internal 69 th output a, an[0:67] sdout serial burst csb load ale_scn y, yn[0:67] outchan[18:0] inchan[6:0] program memory program interface actclk activity activity monitor
vitesse semiconductor corporation preliminary data sheet VSC837 3.2gb/s 68x68 crosspoint switch g52309-0, rev 3.0 page 3 02/16/01 ? vitesse semiconductor corporation 741 calle plano camarillo, ca 93012 tel: (800) vitesse fax: (805) 987-5896 email: prodinfo@vitesse.com internet: www.vitesse.com programming interface parallel mode in parallel mode (serial=0, burst=0), the binary word on inchan[6:0] is the numerical identifier of the input that will be routed to the specified output. outchan[6:0] is the numerical identifier of the output being programmed. a rising edge on the load signal will transfer the programming data to the shadow regis- ter in the program memory. raising config (asynchronously) will transfer the programming data to the main latches in the program memory and cause the internal select signals in the core to re-configure the multiplexer. lowering config will latch the main latches. config may be tied high to enable programming take effect instantaneously. this interface may be used with multiplexed address/data buses by using only inchan[6:0] without outchan[6:0] and dropping ale when the address of the output to be programmed is present on inchan[6:0]. after the address is latched, the input address may be presented on inchan[6:0] and pro- gramming proceeds as above. no read-back capability is provided in parallel mode. read-back for diagnostic purposes is provided in serial mode via the scan function. serial mode in serial mode (serial=1, burst=0), the inchan0 pin becomes the serial data input and the inchan1 pin becomes the serial clock (rising edge triggered). a serial word of the form [output][input] is shifted into the internal shift register, and the load pin is asserted (high) coincident with the last bit of the data word to signal that the word is to be applied. this transfers the input identifier to the shadow register of the addressed output. config is then applied (asynchronously) to transfer one or more program commands to the main latches of the program memories. the sdout pin follows the data on the inchan0_sdin pin 14 clock cycles later. this enables the user to chain the serial ports of several crosspoints, shift program data for all switches through such a chain, and assert load on all switches simultaneously to program all of the connections simultaneously. the output field is 7 bits long, representing the binary numerical identifier of the output to be programmed. the input field is 7 bits long, representing the numerical identifier of the input that will be routed to the speci- fied output. serial read-back read-back of the program memory contents is accomplished in serial mode by setting the ale_scn pin high. this will serially shift out the contents of the main latches in the program memories, slice 68 first and slice 0 last, and msb-first, lsb-last for each 7-bit word. one rising edge of inchan1_sclk with ale_scn=0 and serial=1 must occur to load the entire 483-bit shift register prior to shifting out data. at a clock rate of 66mhz, this operation takes 7.26 s.
vitesse semiconductor corporation preliminary data sheet VSC837 3.2gb/s 68x68 crosspoint switch page 4 g52309-0, rev 3.0 02/16/01 ? vitesse semiconductor corporation 741 calle plano camarillo, ca 93012 tel: (800) vitesse fax: (805) 987-5896 email: prodinfo@vitesse.com internet: www.vitesse.com burst mode burst mode programming (burst=1, serial=0) enables an input to be broadcast to any group of 1 to 17 outputs with a single command. in this mode, rising edges on the load pin will trigger program operations. the inchan[6:0] pins represent the input to be broadcast. the outchan[18:17] pins represent the page (quarter) of the program memory to access, and each of the outchan[16:0] pins represents 1 of the 17 out- puts within that page. a ? 1 ? on any of those pins will cause that output to be programmed to connect to the input named on inchan[6:0]. no read-back capability is provided in burst mode. see serial read-back section above. activity monitoring the activity monitor observes the output of the internal 69th output from the core. by programming the 69th output to observe various inputs, the input signals can be scanned for activity or lack thereof. each rising edge of actclk causes the monitor to read out the activity state from the previous actclk period and clears the internal activity state until a data transition triggers it again. there must be a minimum of one rising and one falling edge on the observed input data pin during the actclk period for activity to be detected. after power- on the output of activity after the first actclk rising edge is unknown. selective power-down unused input and output channels can be made to consume little or no power via one of two methods of selective power-down. software power-down using this feature, unused outputs may be disabled, saving approximately 170 mw per channel for maxi- mum dissipation conditions. this is accomplished by programming each unused output to look at input 127 (7f hex), which represents a non-existent input channel. the channel may be subsequently activated by program- ming a valid input address. it is recommended, however, that any changes in power programming only be exe- cuted as part of an initialization sequence to guard against the effects of any switching transients that might result from changing the power supply current suddenly. software mode does not affect the functioning or power of unused input channels. hardware power-down using this feature, the power associated with given pairs of inputs may be shut off by tying the correspond- ing v ee pin to v cc (see table 10). approximately 160 mw per input pair is saved under the maximum dissipa- tion conditions. the power associated with given pairs of outputs, including their contribution to the core power, can be shut off by tying the corresponding v ee pin to v cc (see table 10). approximately 360 mw per output pair is saved under the maximum dissipation conditions. certain v ee pins must always be active. in other words, tied to the most negative supply, so the correspond- ing inputs and outputs will always be on and consuming power. see figure 6 and table 10 for the location of these pins.
vitesse semiconductor corporation preliminary data sheet VSC837 3.2gb/s 68x68 crosspoint switch g52309-0, rev 3.0 page 5 02/16/01 ? vitesse semiconductor corporation 741 calle plano camarillo, ca 93012 tel: (800) vitesse fax: (805) 987-5896 email: prodinfo@vitesse.com internet: www.vitesse.com ac characteristics table 1: data path notes:(1) tested on a sample basis only. (2) broadband (unfiltered) deterministic jitter added to a jitter-free input, 2 23 -1 prbs data pattern. table 2: program interface timing symbol parameter min typ max units f rate maximum data rate ?? 3.2 gb/s t skw channel-to-channel delay skew ? 300 ? ps t pday propagation delay from an a input to a y output ? 750 ? ps t r , t f high-speed input rise/fall times, 20% to 80% ?? 150 ps t r , t f high-speed output rise/fall times, 20% to 80% ?? 150 ps t jr output added delay jitter, rms (1, 2) ?? 10 ps t jp output added delay jitter, peak-to-peak (1, 2) ?? 40 ps symbol parameter min typ max units t swrb setup time from inchan[6:0] or outchan[6:0] to rising edge of wrb 3.35 ?? ns t hwrb hold time from rising edge of wrb to inchan[6:0] or outchan[6:0] 1.45 ?? ns t pwlw pulse width (high or low) on load 6.75 ?? ns t scsb setup time from csb to falling edge of load or ale_scn in parallel or burst mode, or rising edge of load in serial mode. 0 ?? ns t hcsb hold time of csb rising edge after load or ale_scn rising in parallel or burst mode, or falling edge of load in serial mode, or falling edge of config in any mode. 0 ?? ns t pwcfg pulse width (high or low) on config 6.75 ?? ns t ssdin setup time from inchan0_sdin to inchan1_sclk rising 1.65 ?? ns t hsdin hold time of inchan0_sdin after inchan1_sclk rising 1.0 ?? ns t persclk minimum period of sclk in serial mode 15 ?? ns t sload setup time from load to inchan1_sclk rising 1.85 ?? ns t hload hold time of load after inchan1_sclk rising 0.95 ?? ns t sserial setup time from serial rising to inchan1_sclk rising when entering serial mode or serial falling to load falling when entering parallel mode or serial falling to load rising when entering burst mode. 0.90 ?? ns t hserial hold time from inchan1_sclk rising to serial falling when exiting serial mode. 0 ?? ns t sburst setup time from burst rising to load rising when entering burst mode or burst falling to load falling when entering parallel mode. 1.85 ?? ns t hburst hold time from load rising to burst falling when exiting burst mode. 2.45 ?? ns t dsdout delay from inchan1_sclk rising to sdout, 20pf load. ?? 6.20 ns t pwinitb pulse width (high or low) on initb 6.75 ?? ns t sscan setup time from ale_scn to inchan1_sclk rising when starting or completing a serial read-back sequence. 1.65 ?? ns t hscan hold time of ale_scn after inchan1_sclk rising when starting or completing a serial read-back sequence. 1.0 ?? ns
vitesse semiconductor corporation preliminary data sheet VSC837 3.2gb/s 68x68 crosspoint switch page 6 g52309-0, rev 3.0 02/16/01 ? vitesse semiconductor corporation 741 calle plano camarillo, ca 93012 tel: (800) vitesse fax: (805) 987-5896 email: prodinfo@vitesse.com internet: www.vitesse.com figure 1: parallel mode?separate address/data (leave ale_scn pin high) figure 2: parallel mode?multiplexed address/data figure 3: burst mode outchan[6:0] inchan[6:0] output address input address load csb config serial t swrb t hwrb t scsb t pwlw t sserial t hcsb t pwcfg output address input address t swrb t scsb t sserial t pwlw t pwcfg t hwrb t hcsb inchan[6:0] ale_scn load csb config serial output page output page output id bits output id bits input address input address t swrb t scsb t pwlw t hwrb t sburst t hburst outchan[18:17] outchan[16:0] inchan[6:0] load csb config burst t pwcfg t hcsb
vitesse semiconductor corporation preliminary data sheet VSC837 3.2gb/s 68x68 crosspoint switch g52309-0, rev 3.0 page 7 02/16/01 ? vitesse semiconductor corporation 741 calle plano camarillo, ca 93012 tel: (800) vitesse fax: (805) 987-5896 email: prodinfo@vitesse.com internet: www.vitesse.com figure 4: serial mode (leave ale_scn pin low during programming) figure 5: serial read-back inchan0_sdin o6 o5 o4 o3 o2 o1 o0 i6 i5 i4 i3 o6 o5 o4 o3 i2 i1 i0 inchan1_sclk sdout load csb config serial o(n) = output address bit (n), i(n) = input address bit (n) t hsdin t persclk t dsdout t hload t pwcfg t sload t ssdin t hcsb t scsb t sserial 68 68 68 68 68 68 68 67 67 67 67 67 67 67 b6 b5 b4 b3 b2 b1 b0 b6 b5 b4 b3 b2 b1 b0 ale_scn inchan1_sclk sdout serial 66 b6 t hscan t sserial t sscan t persclk t dsdout read-back shift register (483 bits long) is loaded here on rising edge of inchan1_sclk with serial high and ale_scn low msb of program memory for output 68
vitesse semiconductor corporation preliminary data sheet VSC837 3.2gb/s 68x68 crosspoint switch page 8 g52309-0, rev 3.0 02/16/01 ? vitesse semiconductor corporation 741 calle plano camarillo, ca 93012 tel: (800) vitesse fax: (805) 987-5896 email: prodinfo@vitesse.com internet: www.vitesse.com dc characteristics all characteristics are over the specified operating conditions. table 3: power supply requirements table 4: control port input levels (ttl/cmos) table 5: signal input levels (high-speed signal path) table 6: signal output levels (high-speed signal path) term_ctrl=on, drive_ctrl=hi notes: (1) mean peak-to-peak amplitude measurement of either true or complement of the differential signal. (2) v cc = v ccp = 2.5v, v ee = 0v. (3) terminated in 50 ? to v cc . this termination is used for testing the part, but other terminations are allowed?see table 9. symbol parameter min typ max units conditions i cc v cc supply current 5600 6095 ma p t total chip power (with i term = 0 and back- terminations on, high drive) 13 16 w symbol parameter min typ max units conditions v ih input high voltage 1.7 v cc + 1.0 v v il input low voltage 0 0.8 v i ih input high current tbd a i il input low current tbd a v oh output high voltage v cc - 0.2 v cc v dc load < 500a v ol output low voltage 0 0.2 v dc load < 2ma v ohpu v oh with external pull-up 2.4 v 250 ? to 3.3v(5%) v olpu v ol with external pull-up 0.4 v 250 ? to 3.3v(5%) symbol parameter min typ max units conditions v in input voltage amplitude 150 1100 mv see note 1 v icm input common-mode voltage v cc - 0.7 v cc - 0.2 vsee note 2 symbol parameter min typ max units conditions v out output differential voltage 400 600 mv see note 1, 3 v ocm output common-mode voltage v cc - 0.3 v cc - 0.2 v see note 2, 3
vitesse semiconductor corporation preliminary data sheet VSC837 3.2gb/s 68x68 crosspoint switch g52309-0, rev 3.0 page 9 02/16/01 ? vitesse semiconductor corporation 741 calle plano camarillo, ca 93012 tel: (800) vitesse fax: (805) 987-5896 email: prodinfo@vitesse.com internet: www.vitesse.com i/o equivalent circuits input termination the high-speed inputs of the VSC837 are internally terminated by a 100 ? resistor between true and com- plement inputs. termination resistors are isolated from each other on-chip. the termination will self-bias to +2.0v (nominal) for ac-coupled applications. the itc pin enables direct interconnection of multiple VSC837 devices. with itc tied to v cc , the center point of the 100 ? termination resistor is tied to v cc , causing the ter- minations to act as loads for an open-drain or open-collector differential output. table 7: allowed input termination schemes some allowed termination schemes result in additional i cc current and power dissipation on-chip. see table 8. table 8: additional current and power type description comments 1 ac-coupled input tie itc low, 100 ? differential input termination, input self-biased 2 dc-coupled from open-drain cml tie itc high, terminations acts as 50 ? load to v cc 3 dc-coupled from back-terminated 2.5v cml tie itc high, terminations acts as 50 ? load to v cc 4 dc-coupled from back-terminated 2.5v cml tie itc low, 100 ? differential termination (preferred over type 3) 5 dc-coupled from back-terminated 3.3v lv-pecl tie itc low, 100 ? differential termination symbol description min typ max units conditions i cc-c additional icc current when receiving dc-coupled cml (itc = high) 680 ma p cc-c additional power dissipated on-chip for dc terminating cml at inputs 0.340 w pad pad 50 50 h/s input equivalent circuit h/s output equivalent circuit pad pad 50 50 vcc itc term_ctrl drive_ctrl
vitesse semiconductor corporation preliminary data sheet VSC837 3.2gb/s 68x68 crosspoint switch page 10 g52309-0, rev 3.0 02/16/01 ? vitesse semiconductor corporation 741 calle plano camarillo, ca 93012 tel: (800) vitesse fax: (805) 987-5896 email: prodinfo@vitesse.com internet: www.vitesse.com output termination the high-speed outputs of the VSC837 are internally back terminated by 50 ? to v cc when the term_ctrl pin is high. when this pin is low, the output driver functions as an open-drain cml driver. setting drive_ctrl low (gnd) saves 2w under maximum power dissipation conditions. see table 9 for allowable types of terminations and modes of operation. table 9: allowed high-speed output terminations and modes of operation note: (1) measured at output of VSC837, with v cc = 2.5v. absolute maximum ratings (1) power supply voltage (v cc ) potential to gnd ................................................................................-0.5v to +4.v ttl input voltage applied ..................................................................................................... -0.5v to v cc +1.0v ecl input voltage applied ....................................................................................................- 0.5v to v cc +0.5v output current (i out ) .............................................................................................................................. ...... 50ma case temperature under bias (t c ) ............................................................................................. -55 o c to + 125 o c storage temperature (t stg ) ........................................................................................................ -65 o c to + 150 o c note: (1) caution: stresses listed under ? absolute maximum ratings ? may be applied to devices one at a time without causing perma- nent damage. functionality at or exceeding the values listed is not implied. exposure to these values for extended periods may affect device reliability. operating conditions supply voltage (v ee ).............................................................................................................................. ............ 0v supply voltage (v cc ) ............................................................................................................................+2 .5v 5% supply voltage (v ccp )...........................................................................................................................+2. 5v 5% case temperature operating range (t)........................................................................................... ... 0 o c to 85 o c type description drive_ ctrl term_ ctrl v od (1) (mv) typ v ocm (1) (v) typ 1 ac-coupled to 50 ? termination to any voltage v cc (high) v cc (on) 500 2.0 2 ac-coupled to 100 ? differential termination v cc (high) v cc (on) 500 2.0 3 dc-coupled, terminated in 50 ? to v cc at far-end only gnd (low) gnd (off) 500 2.25 4 dc-coupled, terminated in 50 ? to v cc at far-end only v cc (high) gnd (off) 1000 2.0 5 dc-coupled, source and far-end terminated in 50 ? to v cc gnd (low) v cc (on) 250 2.375 6 dc-coupled, source and far-end terminated in 50 ? to v cc v cc (high) v cc (on) 500 2.25 7 dc-coupled, 100 ? differential termination gnd (low) v cc (on) 250 2.25 8 dc-coupled, 100 ? differential termination v cc (high) v cc (on) 500 2.0
vitesse semiconductor corporation preliminary data sheet VSC837 3.2gb/s 68x68 crosspoint switch g52309-0, rev 3.0 page 11 02/16/01 ? vitesse semiconductor corporation 741 calle plano camarillo, ca 93012 tel: (800) vitesse fax: (805) 987-5896 email: prodinfo@vitesse.com internet: www.vitesse.com package pin descriptions figure 6: pinout diagram ? bottom view 4 0 14 6 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 654321 8121620 18 22 24 28 26 30 32 36 34 38 40 44 48 42 46 50 54 56 60 52 58 a 62 b c d e f g h j k l m n p r t u v w y aa ab ac ad ae af ag 3 15 7 9131721 11 15 19 23 25 29 33 37 27 31 35 39 43 41 45 49 51 55 57 61 53 59 63 47 1 5 9 13 17 21 25 29 33 37 3 7 11 15 19 23 27 31 35 39 43 47 41 45 49 53 57 61 51 55 59 63 0 2 4 6 101418 81216 22 26 30 20 24 28 32 34 36 38 40 42 44 46 48 50 54 58 62 52 56 60 64 vcc dedicated vee common vee (always on) control port inputs [an, ann] outputs [yn, ynn] inputs [an, ann] outputs [yn, ynn] ball grid index 2 64 66 67 66 65 10 28 29 ah aj 65 67 outchan18 outchan17 config outchan15 outchan16 outchan10 outchan11 outchan14 outchan13 outchan12 outchan5 outchan6 outchan9 outchan8 outchan7 outchan0 outchan1 outchan4 outchan3 outchan2 initb burst sdout csb serial activity actclk cmv drive_ctrl term_ctrl inchan4 inchan3 inchan1_sclk inchan2 inchan0_sdin inchan6 ale_scn inchan5 itc load
vitesse semiconductor corporation preliminary data sheet VSC837 3.2gb/s 68x68 crosspoint switch page 12 g52309-0, rev 3.0 02/16/01 ? vitesse semiconductor corporation 741 calle plano camarillo, ca 93012 tel: (800) vitesse fax: (805) 987-5896 email: prodinfo@vitesse.com internet: www.vitesse.com table 10: package pin identifications signal name pin function level high-speed data inputs a0 d23 high-speed data input channel 0, true pecl a1 ah23 high-speed data input channel 1, true pecl a2 b23 high-speed data input channel 2, true pecl a3 af23 high-speed data input channel 3, true pecl a4 d22 high-speed data input channel 4, true pecl a5 ah22 high-speed data input channel 5, true pecl a6 b22 high-speed data input channel 6, true pecl a7 af22 high-speed data input channel 7, true pecl a8 d21 high-speed data input channel 8, true pecl a9 ah21 high-speed data input channel 9, true pecl a10 b21 high-speed data input channel 10, true pecl a11 af21 high-speed data input channel 11, true pecl a12 d20 high-speed data input channel 12, true pecl a13 ah20 high-speed data input channel 13, true pecl a14 b20 high-speed data input channel 14, true pecl a15 af20 high-speed data input channel 15, true pecl a16 d19 high-speed data input channel 16, true pecl a17 ah19 high-speed data input channel 17, true pecl a18 b19 high-speed data input channel 18, true pecl a19 af19 high-speed data input channel 19, true pecl a20 d18 high-speed data input channel 20, true pecl a21 ah18 high-speed data input channel 21, true pecl a22 b18 high-speed data input channel 22, true pecl a23 af18 high-speed data input channel 23, true pecl a24 d17 high-speed data input channel 24, true pecl a25 ah17 high-speed data input channel 25, true pecl a26 b17 high-speed data input channel 26, true pecl a27 af17 high-speed data input channel 27, true pecl a28 d16 high-speed data input channel 28, true pecl a29 ah16 high-speed data input channel 29, true pecl a30 b16 high-speed data input channel 30, true pecl a31 af16 high-speed data input channel 31, true pecl a32 d15 high-speed data input channel 32, true pecl a33 ah15 high-speed data input channel 33, true pecl a34 b15 high-speed data input channel 34, true pecl a35 af15 high-speed data input channel 35, true pecl
vitesse semiconductor corporation preliminary data sheet VSC837 3.2gb/s 68x68 crosspoint switch g52309-0, rev 3.0 page 13 02/16/01 ? vitesse semiconductor corporation 741 calle plano camarillo, ca 93012 tel: (800) vitesse fax: (805) 987-5896 email: prodinfo@vitesse.com internet: www.vitesse.com a36 d14 high-speed data input channel 36, true pecl a37 ah14 high-speed data input channel 37, true pecl a38 b14 high-speed data input channel 38, true pecl a39 af14 high-speed data input channel 39, true pecl a40 d13 high-speed data input channel 40, true pecl a41 ah13 high-speed data input channel 41, true pecl a42 b13 high-speed data input channel 42, true pecl a43 af13 high-speed data input channel 43, true pecl a44 d12 high-speed data input channel 44, true pecl a45 ah12 high-speed data input channel 45, true pecl a46 b12 high-speed data input channel 46, true pecl a47 af12 high-speed data input channel 47, true pecl a48 d11 high-speed data input channel 48, true pecl a49 ah11 high-speed data input channel 49, true pecl a50 b11 high-speed data input channel 50, true pecl a51 af11 high-speed data input channel 51, true pecl a52 d10 high-speed data input channel 52, true pecl a53 ah10 high-speed data input channel 53, true pecl a54 b10 high-speed data input channel 54, true pecl a55 af10 high-speed data input channel 55, true pecl a56 d9 high-speed data input channel 56, true pecl a57 ah9 high-speed data input channel 57, true pecl a58 b9 high-speed data input channel 58, true pecl a59 af9 high-speed data input channel 59, true pecl a60 d8 high-speed data input channel 60, true pecl a61 ah8 high-speed data input channel 61, true pecl a62 b8 high-speed data input channel 62, true pecl a63 af8 high-speed data input channel 63, true pecl a64 d7 high-speed data input channel 64, true pecl a65 ah7 high-speed data input channel 65, true pecl a66 b7 high-speed data input channel 66 true pecl a67 af7 high-speed data input channel 67, true pecl an0 e23 high-speed data input channel 0, complement pecl an1 aj23 high-speed data input channel 1, complement pecl an2 a23 high-speed data input channel 2, complement pecl an3 ae23 high-speed data input channel 3, complement pecl an4 e22 high-speed data input channel 4, complement pecl an5 aj22 high-speed data input channel 5, complement pecl an6 a22 high-speed data input channel 6, complement pecl signal name pin function level
vitesse semiconductor corporation preliminary data sheet VSC837 3.2gb/s 68x68 crosspoint switch page 14 g52309-0, rev 3.0 02/16/01 ? vitesse semiconductor corporation 741 calle plano camarillo, ca 93012 tel: (800) vitesse fax: (805) 987-5896 email: prodinfo@vitesse.com internet: www.vitesse.com an7 ae22 high-speed data input channel 7, complement pecl an8 e21 high-speed data input channel 8, complement pecl an9 aj21 high-speed data input channel 9, complement pecl an10 a21 high-speed data input channel 10, complement pecl an11 ae21 high-speed data input channel 11, complement pecl an12 e20 high-speed data input channel 12, complement pecl an13 aj20 high-speed data input channel 13, complement pecl an14 a20 high-speed data input channel 14, complement pecl an15 ae20 high-speed data input channel 15, complement pecl an16 e19 high-speed data input channel 16, complement pecl an17 aj19 high-speed data input channel 17, complement pecl an18 a19 high-speed data input channel 18, complement pecl an19 ae19 high-speed data input channel 19, complement pecl an20 e18 high-speed data input channel 20, complement pecl an21 aj18 high-speed data input channel 21, complement pecl an22 a18 high-speed data input channel 22, complement pecl an23 ae18 high-speed data input channel 23, complement pecl an24 e17 high-speed data input channel 24, complement pecl an25 aj17 high-speed data input channel 25, complement pecl an26 a17 high-speed data input channel 26, complement pecl an27 ae17 high-speed data input channel 27, complement pecl an28 e16 high-speed data input channel 28, complement pecl an29 aj16 high-speed data input channel 29, complement pecl an30 a16 high-speed data input channel 30, complement pecl an31 ae16 high-speed data input channel 31, complement pecl an32 e15 high-speed data input channel 32, complement pecl an33 aj15 high-speed data input channel 33, complement pecl an34 a15 high-speed data input channel 34, complement pecl an35 ae15 high-speed data input channel 35, complement pecl an36 e14 high-speed data input channel 36, complement pecl an37 aj14 high-speed data input channel 37, complement pecl an38 a14 high-speed data input channel 38, complement pecl an39 ae14 high-speed data input channel 39, complement pecl an40 e13 high-speed data input channel 40, complement pecl an41 aj13 high-speed data input channel 41, complement pecl an42 a13 high-speed data input channel 42, complement pecl an43 ae13 high-speed data input channel 43, complement pecl an44 e12 high-speed data input channel 44, complement pecl an45 aj12 high-speed data input channel 45, complement pecl signal name pin function level
vitesse semiconductor corporation preliminary data sheet VSC837 3.2gb/s 68x68 crosspoint switch g52309-0, rev 3.0 page 15 02/16/01 ? vitesse semiconductor corporation 741 calle plano camarillo, ca 93012 tel: (800) vitesse fax: (805) 987-5896 email: prodinfo@vitesse.com internet: www.vitesse.com an46 a12 high-speed data input channel 46, complement pecl an47 ae12 high-speed data input channel 47, complement pecl an48 e11 high-speed data input channel 48, complement pecl an49 aj11 high-speed data input channel 49, complement pecl an50 a11 high-speed data input channel 50, complement pecl an51 ae11 high-speed data input channel 51, complement pecl an52 e10 high-speed data input channel 52, complement pecl an53 aj10 high-speed data input channel 53, complement pecl an54 a10 high-speed data input channel 54, complement pecl an55 ae10 high-speed data input channel 55, complement pecl an56 e9 high-speed data input channel 56, complement pecl an57 aj9 high-speed data input channel 57, complement pecl an58 a9 high-speed data input channel 58, complement pecl an59 ae9 high-speed data input channel 59, complement pecl an60 e8 high-speed data input channel 60, complement pecl an61 aj8 high-speed data input channel 61, complement pecl an62 a8 high-speed data input channel 62, complement pecl an63 ae8 high-speed data input channel 63, complement pecl an64 e7 high-speed data input channel 64, complement pecl an65 aj7 high-speed data input channel 65, complement pecl an66 a7 high-speed data input channel 66, complement pecl an67 ae7 high-speed data input channel 67, complement pecl high-speed data outputs y0 g28 high-speed data output channel 0, true cml y1 g4 high-speed data output channel 1, true cml y2 g26 high-speed data output channel 2, true cml y3 g2 high-speed data output channel 3, true cml y4 h28 high-speed data output channel 4, true cml y5 h4 high-speed data output channel 5, true cml y6 h26 high-speed data output channel 6, true cml y7 h2 high-speed data output channel 7, true cml y8 j28 high-speed data output channel 8, true cml y9 j4 high-speed data output channel 9, true cml y10 j26 high-speed data output channel 10, true cml y11 j2 high-speed data output channel 11, true cml y12 k28 high-speed data output channel 12, true cml y13 k4 high-speed data output channel 13, true cml y14 k26 high-speed data output channel 14, true cml y15 k2 high-speed data output channel 15, true cml signal name pin function level
vitesse semiconductor corporation preliminary data sheet VSC837 3.2gb/s 68x68 crosspoint switch page 16 g52309-0, rev 3.0 02/16/01 ? vitesse semiconductor corporation 741 calle plano camarillo, ca 93012 tel: (800) vitesse fax: (805) 987-5896 email: prodinfo@vitesse.com internet: www.vitesse.com y16 l28 high-speed data output channel 16, true cml y17 l4 high-speed data output channel 17, true cml y18 l26 high-speed data output channel 18, true cml y19 l2 high-speed data output channel 19, true cml y20 m28 high-speed data output channel 20, true cml y21 m4 high-speed data output channel 21, true cml y22 m26 high-speed data output channel 22, true cml y23 m2 high-speed data output channel 23, true cml y24 n28 high-speed data output channel 24, true cml y25 n4 high-speed data output channel 25, true cml y26 n26 high-speed data output channel 26, true cml y27 n2 high-speed data output channel 27, true cml y28 p28 high-speed data output channel 28, true cml y29 p4 high-speed data output channel 29, true cml y30 p26 high-speed data output channel 30, true cml y31 p2 high-speed data output channel 31, true cml y32 r28 high-speed data output channel 32, true cml y33 r4 high-speed data output channel 33, true cml y34 r26 high-speed data output channel 34, true cml y35 r2 high-speed data output channel 35, true cml y36 t28 high-speed data output channel 36, true cml y37 t4 high-speed data output channel 37, true cml y38 t26 high-speed data output channel 38, true cml y39 t2 high-speed data output channel 39, true cml y40 u28 high-speed data output channel 40, true cml y41 u4 high-speed data output channel 41, true cml y42 u26 high-speed data output channel 42, true cml y43 u2 high-speed data output channel 43, true cml y44 v28 high-speed data output channel 44, true cml y45 v4 high-speed data output channel 45, true cml y46 v26 high-speed data output channel 46, true cml y47 v2 high-speed data output channel 47, true cml y48 w28 high-speed data output channel 48, true cml y49 w4 high-speed data output channel 49, true cml y50 w26 high-speed data output channel 50, true cml y51 w2 high-speed data output channel 51, true cml y52 y28 high-speed data output channel 52, true cml y53 y4 high-speed data output channel 53, true cml y54 y26 high-speed data output channel 54, true cml signal name pin function level
vitesse semiconductor corporation preliminary data sheet VSC837 3.2gb/s 68x68 crosspoint switch g52309-0, rev 3.0 page 17 02/16/01 ? vitesse semiconductor corporation 741 calle plano camarillo, ca 93012 tel: (800) vitesse fax: (805) 987-5896 email: prodinfo@vitesse.com internet: www.vitesse.com y55 y2 high-speed data output channel 55, true cml y56 aa28 high-speed data output channel 56, true cml y57 aa4 high-speed data output channel 57, true cml y58 aa26 high-speed data output channel 58, true cml y59 aa2 high-speed data output channel 59, true cml y60 ab28 high-speed data output channel 60, true cml y61 ab4 high-speed data output channel 61, true cml y62 ab26 high-speed data output channel 62, true cml y63 ab2 high-speed data output channel 63, true cml y64 ac28 high-speed data output channel 64, true cml y65 ac4 high-speed data output channel 65, true cml y66 ac26 high-speed data output channel 66, true cml y67 ac2 high-speed data output channel 67, true cml yn0 g29 high-speed data output channel 0, complement cml yn1 g5 high-speed data output channel 1, complement cml yn2 g25 high-speed data output channel 2, complement cml yn3 g1 high-speed data output channel 3, complement cml yn4 h29 high-speed data output channel 4, complement cml yn5 h5 high-speed data output channel 5, complement cml yn6 h25 high-speed data output channel 6, complement cml yn7 h1 high-speed data output channel 7, complement cml yn8 j29 high-speed data output channel 8, complement cml yn9 j5 high-speed data output channel 9, complement cml yn10 j25 high-speed data output channel 10, complement cml yn11 j1 high-speed data output channel 11, complement cml yn12 k29 high-speed data output channel 12, complement cml yn13 k5 high-speed data output channel 13, complement cml yn14 k25 high-speed data output channel 14, complement cml yn15 k1 high-speed data output channel 15, complement cml yn16 l29 high-speed data output channel 16, complement cml yn17 l5 high-speed data output channel 17, complement cml yn18 l25 high-speed data output channel 18, complement cml yn19 l1 high-speed data output channel 19, complement cml yn20 m29 high-speed data output channel 20, complement cml yn21 m5 high-speed data output channel 21, complement cml yn22 m25 high-speed data output channel 22, complement cml yn23 m1 high-speed data output channel 23, complement cml yn24 n29 high-speed data output channel 24, complement cml yn25 n5 high-speed data output channel 25, complement cml signal name pin function level
vitesse semiconductor corporation preliminary data sheet VSC837 3.2gb/s 68x68 crosspoint switch page 18 g52309-0, rev 3.0 02/16/01 ? vitesse semiconductor corporation 741 calle plano camarillo, ca 93012 tel: (800) vitesse fax: (805) 987-5896 email: prodinfo@vitesse.com internet: www.vitesse.com yn26 n25 high-speed data output channel 26, complement cml yn27 n1 high-speed data output channel 27, complement cml yn28 p29 high-speed data output channel 28, complement cml yn29 p5 high-speed data output channel 29, complement cml yn30 p25 high-speed data output channel 30, complement cml yn31 p1 high-speed data output channel 31, complement cml yn32 r29 high-speed data output channel 32, complement cml yn33 r5 high-speed data output channel 33, complement cml yn34 r25 high-speed data output channel 34, complement cml yn35 r1 high-speed data output channel 35, complement cml yn36 t29 high-speed data output channel 36, complement cml yn37 t5 high-speed data output channel 37, complement cml yn38 t25 high-speed data output channel 38, complement cml yn39 t1 high-speed data output channel 39, complement cml yn40 u29 high-speed data output channel 40, complement cml yn41 u5 high-speed data output channel 41, complement cml yn42 u25 high-speed data output channel 42, complement cml yn43 u1 high-speed data output channel 43, complement cml yn44 v29 high-speed data output channel 44, complement cml yn45 v5 high-speed data output channel 45, complement cml yn46 v25 high-speed data output channel 46, complement cml yn47 v1 high-speed data output channel 47, complement cml yn48 w29 high-speed data output channel 48, complement cml yn49 w5 high-speed data output channel 49, complement cml yn50 w25 high-speed data output channel 50, complement cml yn51 w1 high-speed data output channel 51, complement cml yn52 y29 high-speed data output channel 52, complement cml yn53 y5 high-speed data output channel 53, complement cml yn54 y25 high-speed data output channel 54, complement cml yn55 y1 high-speed data output channel 55, complement cml yn56 aa29 high-speed data output channel 56, complement cml yn57 aa5 high-speed data output channel 57, complement cml yn58 aa25 high-speed data output channel 58, complement cml yn59 aa1 high-speed data output channel 59, complement cml yn60 ab29 high-speed data output channel 60, complement cml yn61 ab5 high-speed data output channel 61, complement cml yn62 ab25 high-speed data output channel 62, complement cml yn63 ab1 high-speed data output channel 63, complement cml yn64 ac29 high-speed data output channel 64, complement cml signal name pin function level
vitesse semiconductor corporation preliminary data sheet VSC837 3.2gb/s 68x68 crosspoint switch g52309-0, rev 3.0 page 19 02/16/01 ? vitesse semiconductor corporation 741 calle plano camarillo, ca 93012 tel: (800) vitesse fax: (805) 987-5896 email: prodinfo@vitesse.com internet: www.vitesse.com yn65 ac5 high-speed data output channel 65, complement cml yn66 ac25 high-speed data output channel 66, complement cml yn67 ac1 high-speed data output channel 67, complement cml control pins actclk ad2 clock for activity monitor (<10mhz) ttl activity ad1 activityresult from previous actclk period ttl ale_scn ad25 address latch enable for multiplexed parallel mode; scan enable for serial mode. see figures 2 through 6 for proper use. ttl burst ah6 logic high sets burst mode ttl cmv ad3 output drive current control (leave floating) analog config f27 logic high transfers programming to main program memory ttl csb af6 chip select (active low) ttl drive_ctrl ad4 output drive current switch (low = 10ma, high = 20ma) ttl inchan0_sdin ag24 input channel, bit 0 and serial data in serial mode ttl inchan1_sclk af24 input channel, bit 1 and serial clock in serial mode ttl inchan2 ae24 input channel, bit 2 ttl inchan3 ah24 input channel, bit 3 ttl inchan4 aj24 input channel, bit 4 ttl inchan5 ad27 input channel, bit 5 ttl inchan6 ad26 input channel, bit 6 ttl initb aj6 initb=0 forces ? straight-through ? program ttl itc ad29 input termination control (gnd = floating input termination, v cc = cml mode. see table 7). analog load ad28 rising edge writes data in parallel and burst modes, see figure 5 for serial mode ttl outchan0 f1 output channel, bit 0 ttl outchan1 f2 output channel, bit 1 ttl outchan2 f5 output channel, bit 2 ttl outchan3 f4 output channel, bit 3 ttl outchan4 f3 output channel, bit 4 ttl outchan5 a6 output channel, bit 5 ttl outchan6 b6 output channel, bit 6 ttl outchan7 e6 output channel, bit 7 (burst mode only) ttl outchan8 d6 output channel, bit 8 (burst mode only) ttl outchan9 c6 output channel, bit 9 (burst mode only) ttl outchan10 a24 output channel, bit 10 (burst mode only) ttl outchan11 b24 output channel, bit 11 (burst mode only) ttl outchan12 e24 output channel, bit 12 (burst mode only) ttl outchan13 d24 output channel, bit 13 (burst mode only) ttl signal name pin function level
vitesse semiconductor corporation preliminary data sheet VSC837 3.2gb/s 68x68 crosspoint switch page 20 g52309-0, rev 3.0 02/16/01 ? vitesse semiconductor corporation 741 calle plano camarillo, ca 93012 tel: (800) vitesse fax: (805) 987-5896 email: prodinfo@vitesse.com internet: www.vitesse.com outchan14 c24 output channel, bit 14 (burst mode only) ttl outchan15 f29 output channel, bit 15 (burst mode only) ttl outchan16 f28 output channel, bit 16 (burst mode only) ttl outchan17 f25 output channel, bit 17 (burst mode only) ttl outchan18 f26 output channel, bit 18 (burst mode only) ttl sdout ag6 serial data out for serial mode and scan ttl serial ae6 serial = 1 sets serial mode ttl term_ctrl ad5 output back-termination control (low = no back termination; high = 50 ? back-termination to v cc . see table 9). ttl power supplies vee c23 common negative power supply gnd vee c7 common negative power supply gnd vee r3 common negative power supply gnd vee ag7 common negative power supply gnd vee ag23 common negative power supply gnd vee r27 common negative power supply gnd vcc a1 positive power supply 2.5v vcc a2 positive power supply 2.5v vcc a3 positive power supply 2.5v vcc a4 positive power supply 2.5v vcc a5 positive power supply 2.5v vcc a25 positive power supply 2.5v vcc a26 positive power supply 2.5v vcc a27 positive power supply 2.5v vcc a28 positive power supply 2.5v vcc a29 positive power supply 2.5v vcc ae1 positive power supply 2.5v vcc ae2 positive power supply 2.5v vcc ae25 positive power supply 2.5v vcc ae26 positive power supply 2.5v vcc ae27 positive power supply 2.5v vcc ae28 positive power supply 2.5v vcc ae29 positive power supply 2.5v vcc ae3 positive power supply 2.5v vcc ae4 positive power supply 2.5v vcc ae5 positive power supply 2.5v vcc af1 positive power supply 2.5v vcc af2 positive power supply 2.5v vcc af25 positive power supply 2.5v signal name pin function level
vitesse semiconductor corporation preliminary data sheet VSC837 3.2gb/s 68x68 crosspoint switch g52309-0, rev 3.0 page 21 02/16/01 ? vitesse semiconductor corporation 741 calle plano camarillo, ca 93012 tel: (800) vitesse fax: (805) 987-5896 email: prodinfo@vitesse.com internet: www.vitesse.com vcc af26 positive power supply 2.5v vcc af27 positive power supply 2.5v vcc af28 positive power supply 2.5v vcc af29 positive power supply 2.5v vcc af3 positive power supply 2.5v vcc af4 positive power supply 2.5v vcc af5 positive power supply 2.5v vcc ag1 positive power supply 2.5v vcc ag2 positive power supply 2.5v vcc ag25 positive power supply 2.5v vcc ag26 positive power supply 2.5v vcc ag27 positive power supply 2.5v vcc ag28 positive power supply 2.5v vcc ag29 positive power supply 2.5v vcc ag3 positive power supply 2.5v vcc ag4 positive power supply 2.5v vcc ag5 positive power supply 2.5v vcc ah1 positive power supply 2.5v vcc ah2 positive power supply 2.5v vcc ah25 positive power supply 2.5v vcc ah26 positive power supply 2.5v vcc ah27 positive power supply 2.5v vcc ah28 positive power supply 2.5v vcc ah29 positive power supply 2.5v vcc ah3 positive power supply 2.5v vcc ah4 positive power supply 2.5v vcc ah5 positive power supply 2.5v vcc aj1 positive power supply 2.5v vcc aj2 positive power supply 2.5v vcc aj25 positive power supply 2.5v vcc aj26 positive power supply 2.5v vcc aj27 positive power supply 2.5v vcc aj28 positive power supply 2.5v vcc aj29 positive power supply 2.5v vcc aj3 positive power supply 2.5v vcc aj4 positive power supply 2.5v vcc aj5 positive power supply 2.5v vcc b1 positive power supply 2.5v vcc b2 positive power supply 2.5v signal name pin function level
vitesse semiconductor corporation preliminary data sheet VSC837 3.2gb/s 68x68 crosspoint switch page 22 g52309-0, rev 3.0 02/16/01 ? vitesse semiconductor corporation 741 calle plano camarillo, ca 93012 tel: (800) vitesse fax: (805) 987-5896 email: prodinfo@vitesse.com internet: www.vitesse.com vcc b25 positive power supply 2.5v vcc b26 positive power supply 2.5v vcc b27 positive power supply 2.5v vcc b28 positive power supply 2.5v vcc b29 positive power supply 2.5v vcc b3 positive power supply 2.5v vcc b4 positive power supply 2.5v vcc b5 positive power supply 2.5v vcc c1 positive power supply 2.5v vcc c2 positive power supply 2.5v vcc c25 positive power supply 2.5v vcc c26 positive power supply 2.5v vcc c27 positive power supply 2.5v vcc c28 positive power supply 2.5v vcc c29 positive power supply 2.5v vcc c3 positive power supply 2.5v vcc c4 positive power supply 2.5v vcc c5 positive power supply 2.5v vcc d1 positive power supply 2.5v vcc d2 positive power supply 2.5v vcc d25 positive power supply 2.5v vcc d26 positive power supply 2.5v vcc d27 positive power supply 2.5v vcc d28 positive power supply 2.5v vcc d29 positive power supply 2.5v vcc d3 positive power supply 2.5v vcc d4 positive power supply 2.5v vcc d5 positive power supply 2.5v vcc e1 positive power supply 2.5v vcc e2 positive power supply 2.5v vcc e25 positive power supply 2.5v vcc e26 positive power supply 2.5v vcc e27 positive power supply 2.5v vcc e28 positive power supply 2.5v vcc e29 positive power supply 2.5v vcc e3 positive power supply 2.5v vcc e4 positive power supply 2.5v vcc e5 positive power supply 2.5v veep_t1 c22 negative power supply for inputs a4/an4+a6/an6 gnd signal name pin function level
vitesse semiconductor corporation preliminary data sheet VSC837 3.2gb/s 68x68 crosspoint switch g52309-0, rev 3.0 page 23 02/16/01 ? vitesse semiconductor corporation 741 calle plano camarillo, ca 93012 tel: (800) vitesse fax: (805) 987-5896 email: prodinfo@vitesse.com internet: www.vitesse.com veep_t2 c21 negative power supply for inputs a8/an8+a10/an10 gnd veep_t3 c20 negative power supply for inputs a12/an12+a14/an14 gnd veep_t4 c19 negative power supply for inputs a16/an16+a18/an18 gnd veep_t5 c18 negative power supply for inputs a20/an20+a22/an22 gnd veep_t6 c17 negative power supply for inputs a24/an24+a26/an26 gnd veep_t7 c16 negative power supply for inputs a28/an28+a30/an30 gnd veep_t8 c15 negative power supply for inputs a32/an32+a34/an34 gnd veep_t9 c14 negative power supply for inputs a36/an36+a38/an38 gnd veep_t10 c13 negative power supply for inputs a40/an40+a42/an42 gnd veep_t11 c12 negative power supply for inputs a44/an44+a46/an46 gnd veep_t12 c11 negative power supply for inputs a48/an48+a50/an50 gnd veep_t13 c10 negative power supply for inputs a52/an52+a54/an54 gnd veep_t14 c9 negative power supply for inputs a56/an56+a58/an58 gnd veep_t15 c8 negative power supply for inputs a60/an60+a62/an62 gnd veep_b1 ag22 negative power supply for inputs a5/an5+a7/an7 gnd veep_b2 ag21 negative power supply for inputs a9/an9+a11/an11 gnd veep_b3 ag20 negative power supply for inputs a13/an13+a15/an15 gnd veep_b4 ag19 negative power supply for inputs a17/an17+a19/an19 gnd veep_b5 ag18 negative power supply for inputs a21/an21+a23/an23 gnd veep_b6 ag17 negative power supply for inputs a25/an25+a27/an27 gnd veep_b7 ag16 negative power supply for inputs a29/an29+a31/an31 gnd veep_b8 ag15 negative power supply for inputs a33/an33+a35/an35 gnd veep_b9 ag14 negative power supply for inputs a37/an37+a39/an39 gnd veep_b10 ag13 negative power supply for inputs a41/an41+a43/an43 gnd veep_b11 ag12 negative power supply for inputs a45/an45+a47/an47 gnd veep_b12 ag11 negative power supply for inputs a49/an49+a51/an51 gnd veep_b13 ag10 negative power supply for inputs a53/an53+a55/an55 gnd veep_b14 ag9 negative power supply for inputs a57/an57+a59/an59 gnd veep_b15 ag8 negative power supply for inputs a61/an61+a63/an63 gnd veep_l0 g3 negative power supply for outputs y1/yn1+y3/yn3 gnd veep_l1 h3 negative power supply for outputs y5/yn5+y7/yn7 gnd veep_l2 j3 negative power supply for outputs y9/yn9+y11/yn11 gnd veep_l3 k3 negative power supply for outputs y13/yn13+y15/yn15 gnd veep_l4 l3 negative power supply for outputs y17/yn17+y19/yn19 gnd veep_l5 m3 negative power supply for outputs y21/yn21+y23/yn23 gnd veep_l6 n3 negative power supply for outputs y25/yn25+y27/yn27 gnd veep_l7 p3 negative power supply for outputs y29/yn29+y31/yn31 gnd veep_l9 t3 negative power supply for outputs y37/yn37+y39/yn39 gnd veep_l10 u3 negative power supply for outputs y41/yn41+y43/yn43 gnd signal name pin function level
vitesse semiconductor corporation preliminary data sheet VSC837 3.2gb/s 68x68 crosspoint switch page 24 g52309-0, rev 3.0 02/16/01 ? vitesse semiconductor corporation 741 calle plano camarillo, ca 93012 tel: (800) vitesse fax: (805) 987-5896 email: prodinfo@vitesse.com internet: www.vitesse.com veep_l11 v3 negative power supply for outputs y45/yn45+y47/yn47 gnd veep_l12 w3 negative power supply for outputs y49/yn49+y51/yn51 gnd veep_l13 y3 negative power supply for outputs y53/yn53+y55/yn55 gnd veep_l14 aa3 negative power supply for outputs y57/yn57+y59/yn59 gnd veep_l15 ab3 negative power supply for outputs y61/yn61+y63/yn63 gnd veep_l16 ac3 negative power supply for outputs y65/yn65+y67/yn67 gnd veep_r0 g27 negative power supply for outputs y0/yn0+y2/yn2 gnd veep_r1 h27 negative power supply for outputs y4/yn4+y6/yn6 gnd veep_r2 j27 negative power supply for outputs y8/yn8+y10/yn10 gnd veep_r3 k27 negative power supply for outputs y12/yn12+y14/yn14 gnd veep_r4 l27 negative power supply for outputs y16/yn16+y18/yn18 gnd veep_r5 m27 negative power supply for outputs y20/yn20+y22/yn22 gnd veep_r6 n27 negative power supply for outputs y24/yn24+y26/yn26 gnd veep_r7 p27 negative power supply for outputs y28/yn28+y30/yn30 gnd veep_r9 t27 negative power supply for outputs y36/yn36+y38/yn38 gnd veep_r10 u27 negative power supply for outputs y40/yn40+y42/yn42 gnd veep_r11 v27 negative power supply for outputs y44/yn44+y46/yn46 gnd veep_r12 w27 negative power supply for outputs y48/yn48+y50/yn50 gnd veep_r13 y27 negative power supply for outputs y52/yn52+y54/yn54 gnd veep_r14 aa27 negative power supply for outputs y56/yn56+y58/yn58 gnd veep_r15 ab27 negative power supply for outputs y60/yn60+y62/yn62 gnd veep_r16 ac27 negative power supply for outputs y64/yn64+y66/yn66 gnd signal name pin function level
vitesse semiconductor corporation preliminary data sheet VSC837 3.2gb/s 68x68 crosspoint switch g52309-0, rev 3.0 page 25 02/16/01 ? vitesse semiconductor corporation 741 calle plano camarillo, ca 93012 tel: (800) vitesse fax: (805) 987-5896 email: prodinfo@vitesse.com internet: www.vitesse.com package information - 37.5mm 480 bga 00.30 s c a s b s
vitesse semiconductor corporation preliminary data sheet VSC837 3.2gb/s 68x68 crosspoint switch page 26 g52309-0, rev 3.0 02/16/01 ? vitesse semiconductor corporation 741 calle plano camarillo, ca 93012 tel: (800) vitesse fax: (805) 987-5896 email: prodinfo@vitesse.com internet: www.vitesse.com ordering information the order number for this product is formed by a combination of the device type and package type. notice vitesse semiconductor corporation ( ? vitesse ? ) provides this document for informational purposes only. this document contains pre-production information about vitesse products in their concept, development and/or testing phase. all information in this document, includ ing descriptions of features, functions, performance, technical specifications and availability, is subject to change without notice at any time. n othing contained in this document shall be construed as extending any warranty or promise, express or implied, that any vitesse product will be availabl e as described or will be suitable for or will accomplish any particular task. vitesse products are not intended for use in life support appliances, devices or systems. use of a vitesse product in such appl ications without writ- ten consent is prohibited. VSC837 xx device type package style ug: 480 tbga, 37.5mm body 3.2gb/s 68x68 crosspoint switch

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