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june 2005 asm2p3805ah rev 0.2 alliance semiconductor 2575, augustine drive ? santa clara, ca ? tel: 408.855.4900 ? fax: 408.855.4999 ? www.alsc.com notice: the information in this document is subject to change without notice. 3.3v cmos buffer clock driver features ? advanced cmos technology ? guaranteed low skew < 500ps (max.) ? very low duty cycle distortion < 1.0ns (max) ? very low cmos power levels ? ttl compatible inputs and outputs ? inputs can be driven from 3.3v or 5v components ? two independent output banks with 3-state control ? 1:5 fanout per bank ? "heartbeat" monitor output ? v cc = 3.3v 0.3v ? available in ssop, soic and qsop packages block diagram functional description the asm2p3805ah is a 3.3v, non-inverting clock driver built using advanced cmos technology. the device consists of two banks of driver s, each with a 1:5 fanout and its own output enable control. the device has a "heartbeat" monitor for diagnostics and pll driving. the mon output is identical to all other outputs and complies with the output specifications in this document. the asm2p3805ah offers low capacitance inputs. the asm2p3805ah is designed for high speed clock distribution where signal quality and skew are critical. the asm2p3805ah also allows single point-to-point transmission line driving in applications such as address distribution, where one signal must be distributed to multiple receivers with low skew and high signal quality. pin diagram in a in b oe b oe a oa 1 ? oa 5 ob 1 ? ob 5 mon 5 5 v ccb ob 1 ob 2 ob 3 gnd b ob 4 ob 5 mon oe b in b in a oe a gnd q oa 5 oa 4 gnd a oa 3 oa 2 oa 1 v cca a s m 2 3 8 0 5 a h 10 11 9 12 8 13 7 14 6 15 5 16 4 17 3 18 2 19 1 20
june 2005 asm2p3805ah rev 0.2 3.3v cmos buffer clock driver 2 of 13 notice: the information in this document is subject to change without notice. pin description pin # pin names description 9,12 oe a , oe b 3-state output enable inputs (active low) 10,11 in a , in b clock inputs 2,3,4,6,7 oa 1 -oa 5 clock outputs 19,18,17,15,14 ob 1 -ob 5 clock outputs 1 v cca power supply for bank a 20 v ccb power supply for bank b 5 gnd a ground for bank a 16 gnd b ground for bank b 8 gnd q ground 13 mon monitor output function table inputs outputs oe a , oe b in a , in b oa n , ob n mon l l l l l h h h h l z l h h z h note: h = high; l = low; z = high-impedance capacitance (t a = +25c, f = 1.0mhz) symbol parameter 1 conditions typ max unit c in input capacitance v in = 0v 4.5 6 pf c out output capacitance v out = 0v 5.5 8 pf note: 1 this parameter is measured at characterization but not tested.
june 2005 asm2p3805ah rev 0.2 3.3v cmos buffer clock driver 3 of 13 notice: the information in this document is subject to change without notice. absolute maximum ratings 1 symbol description max unit v term 2 terminal voltage with respect to gnd -0.5 to +4.6 v v term 3 terminal voltage with respect to gnd -0.5 to +7 v v term 4 terminal voltage with resp ect to gnd -0.5 to v cc +0.5 v i out dc output current -60 to +60 ma t stg storage temperature -65 to +150 c t j junction temperature 150 c t s max. soldering temperature (10 sec) 260 c t dv static discharge voltage (as per jedec std 22- a114-b) 2 kv note: 1 these are stress ratings only and are not implied for functional use. exposure to absolute maximum ratings for prolonge d periods of time may affect device reliability. 2. v cc terminals. 3. input terminals. 4. outputs and i/o terminals.
june 2005 asm2p3805ah rev 0.2 3.3v cmos buffer clock driver 4 of 13 notice: the information in this document is subject to change without notice. dc electrical characteristics over operating range following conditions apply unless otherwise specified commercial: t a = 0c to +70c, v cc = 3.3v 0.3v; industrial: t a = -40 0c to +85c, v cc = 3.3v 0.3v symbol parameter test conditions 1 min typ 2 max unit input high level (input pins) 2 - 5.5 v ih input high level (i/o pins) guaranteed logic high level 2 - v cc + 0.5 v v il input low level (input and i/o pins) guaranteed logic low level -0.5 - 0.8 v input high current (input pins) v i = 5.5v - - 1 i ih input high current (i/o pins) v cc = max. v i = v cc - - 1 input low current (input pins) v i = gnd - - 1 i il input low current (i/o pins) v cc = max. v i = gnd - - 1 a i ozh v o = v cc - - 1 i ozl high impedance output current (3-state output pins) v cc = max. v o = gnd - - 1 a v ik clamp diode voltage v cc = min., i in = -18ma - -0.7 -1.2 v i odh output high current v cc = 3.3v, v in = v ih or v il , v o = 1.5v 3 -36 -60 -110 ma i odl output low current v cc = 3.3v, v in = v ih or v il , v o = 1.5v 3 50 90 200 ma i oh = -0.1ma v cc ?0.2 - - v oh output high voltage v cc = min. v in = v ih or v il i oh = -8ma 2.4 5 3 - v i ol = 0.1ma - - 0.2 i ol = 16ma - 0.2 0.4 v ol output low voltage v cc = min. v in = v ih or v il i ol = 24ma - 0.3 0.5 v i off input power off leakage v cc = 0v, v in = 4.5v - - 1 a i os short circuit current 4 v cc = max., v o = gnd 3 -60 -135 -240 ma v h input hysteresis - - 150 - mv i ccl i cch i ccz quiescent power supply current v cc = max. v in = gnd or v cc - 0.1 10 a notes:1. for conditions shown as max. or min., use appropriate value specified under electrical characteristics for the applica ble device type. 2. typical values are at v cc = 3.3v, +25c ambient. 3. not more than one output should be shorted at one time. duration of the test should not exceed one second. 4. this parameter is guaranteed but not tested. 5. v oh = v cc - 0.6v at rated current.
june 2005 asm2p3805ah rev 0.2 3.3v cmos buffer clock driver 5 of 13 notice: the information in this document is subject to change without notice. power supply characteristics symbol parameter test conditions 1 min typ 2 max unit ? i cc quiescent power supply current ttl inputs high v cc = max. v in = v cc ?0.6v 3 - 10 30 a i ccd dynamic power supply current 4 vcc= max. outputs open oe a = oe b = gnd per output toggling 50% duty cycle v in = v cc v in = gnd - 0.035 0.06 ma/ mhz v in = v cc v in = gnd - 0.9 1.6 v cc = max. outputs open f o = 25mhz 50% duty cycle oe a = oe b = v cc mon. output toggling v in = v cc- 0.6v v in = gnd - 0.9 1.6 v in = v cc v in = gnd - 20 33 5 i c total power supply current 6 v cc = max. outputs open f o = 50mhz 50% duty cycle oe a = oe b = gnd eleven outputs toggling v in = v cc- 0.6v v in = gnd - 20 33 5 ma notes: 1. for conditions shown as max or min, use appropriate value s pecified under electrical charac teristics for the applicable devi ce type. 2. typical values are at v cc = 3.3v, +25c ambient. 3. per ttl driven input (v in = v cc -0.6v); all other inputs at v cc or gnd. 4. this parameter is not directly testable, but is derived for use in total power supply calculations. 5. values for these conditions are examples of the i c formula. these limits are guaranteed but not tested. 6. i c = i quiescent + iinputs + idynamic i c = i cc + ? i cc d h n t + i ccd (f o n o ) i cc = quiescent current (i ccl , i cch and i ccz ) ? i cc = power supply current for a ttl high input (v in = v cc -0.6v) d h = duty cycle for ttl inputs high n t = number of ttl inputs at d h i ccd = dynamic current caused by an i nput transition pair (hlh or lhl) f o = output frequency n o = number of outputs at f o all currents are in milliamps and all frequencies are in megahertz.
june 2005 asm2p3805ah rev 0.2 3.3v cmos buffer clock driver 6 of 13 notice: the information in this document is subject to change without notice. switching characteristics over operating range ? commercial 3,4 asm2p3805a asm2p3805ah symbol parameter conditions 1 min 2 max min 2 max unit t plh t phl propagation delay in a to oa n , in b to ob n 1.5 5.8 1.5 5 ns t r output rise time (0.8v to 2.0v) - 2 - 2 ns t f output fall time (2.0v to 0.8v) - 2 - 2 ns t sk(o) output skew: skew between outputs of all banks of same package (inputs tied together) - 0.5 - 0.5 ns t sk(p) pulse skew: skew between opposite transitions of same output (|t phl -? t plh |) - 1 - 1 ns t sk(t) package skew: skew between outputs of different packages at same power supply voltage, temperature, package type and speed grade - 1.5 - 1.2 ns t pzl t pzh output enable time oe a to oa n , oe b to ob n 1.5 6.5 1.5 6 ns t plz t phz output disable time oe a to oa n , oe b to ob n c l = 50pf r l = 500 ? 1.5 5.5 1.5 5 ns switching characteristics over operating range ? industrial 3,4 asm2p3805a asm2p3805ah symbol parameter conditions 1 min 2 max min 2 max unit t plh t phl propagation delay in a to oa n , in b to ob n 1.5 5.8 1.5 5.2 ns t r output rise time (0.8v to 2.0v) - 2 - 2 ns t f output fall time (2.0v to 0.8v) - 2 - 2 ns t sk(o) output skew: skew between outputs of all banks of same package (inputs tied together) - 0.6 - 0.6 ns t sk(p) pulse skew: skew between opposite transitions of same output (|t phl -? t plh |) - 1 - 1 ns t sk(t) package skew: skew between outputs of different packages at same power supply voltage, temperature, package type and speed grade - 1.5 - 1.2 ns t pzl t pzh output enable time oe a to oa n , oe b to ob n 1.5 6.5 1.5 6 ns t plz t phz output disable time oe a to oa n , oe b to ob n c l = 50pf r l = 500 ? 1.5 5.5 1.5 5 ns note: 1. see test circuits and waveforms. 2. minimum limits are guaranteed but not tested on propagation delays. 3. t plh , t phl , t sk(t) are production tested. all other paramet ers guaranteed but not production tested. 4. propagation delay range indicated by min. and max. limit is due to v cc , operating temperature and process parameters. these propagation delay limits do not imply skew.
june 2005 asm2p3805ah rev 0.2 3.3v cmos buffer clock driver 7 of 13 notice: the information in this document is subject to change without notice. test circuits and waveforms switch position test switch disable low enable low 6v disable high enable high gnd definitions : c l = load capacitance: includes jig and probe capacitance. r t = termination resistance: should be equal to z out of the pulse generator.
june 2005 asm2p3805ah rev 0.2 3.3v cmos buffer clock driver 8 of 13 notice: the information in this document is subject to change without notice. package information 20-lead ssop ( 150 mil ) package dimensions inches millimeters symbol min max min max a 0.053 0.069 1.346 1.753 a1 0.004 0.010 0.102 0.254 a2 ?. 0.059 ?. 1.499 d 0.337 0.344 8.560 8.738 c 0.007 0.012 0.178 0.274 e 0.228 0.244 5.791 6.198 e1 0.150 0.157 3.810 3.988 l 0.016 0.035 0.406 0.890 l1 0.010 basic 0.254 basic b 0.203 0.325 0.008 0.014 r1 0.003 ?. 0.08 ?.. a 0 8 0 8 e 0.025 basic 0.635 basic
june 2005 asm2p3805ah rev 0.2 3.3v cmos buffer clock driver 9 of 13 notice: the information in this document is subject to change without notice. 20-lead qsop package dimensions inches millimeters symbol min max min max a 0.060 0.068 1.52 1.73 a1 0.004 0.008 0.10 0.20 b 0.009 0.012 0.23 0.30 c 0.007 0.010 0.18 0.25 d 0.337 0.344 8.56 8.74 e 0.150 0.157 3.81 3.99 e 0.025 bsc 0.64 bsc h 0.230 0.244 5.84 6.20 h 0.010 0.016 0.25 0.41 l 0.016 0.035 0.41 0.89 s 0.056 0.060 1.42 1.52 a 0 8 0 8
june 2005 asm2p3805ah rev 0.2 3.3v cmos buffer clock driver 10 of 13 notice: the information in this document is subject to change without notice. 20l soic package (300 mil) dimensions inches millimeters symbol min max min max a 0.093 0.104 2.35 2.65 a1 0.004 0.012 0.10 0.30 a2 0.088 0.094 2.25 2.40 d 0.496 0.512 12.60 13.00 l 0.016 0.050 0.40 1.27 e1 0.291 0.299 7.40 7.60 r1 0.003 ?. 0.08 ?.. b 0.013 0.022 0.33 0.56 c 0.009 0.015 0.23 0.38 e 0.394 0.419 10.00 10.65 e 0.050 bsc 1.27 bsc a 0 8 0 8
june 2005 asm2p3805ah rev 0.2 3.3v cmos buffer clock driver 11 of 13 notice: the information in this document is subject to change without notice. ordering information part number marking package type temperature asm2p3805ahg-20-ar 2p3805ahg 20-pin ssop, tape & reel, green commercial asm2p3805ahg-20-at 2p3805ahg 20- pin ssop, tube, green commercial asm2p3805ahg-20-dr 2p3805ahg 20-pin qsop, tape & reel, green commercial asm2p3805ahg-20-dt 2p3805ahg 20-pin qsop, tube, green commercial asm2p3805ahg-20-sr 2p3805ahg 20-pin soic, tape & reel, green commercial asm2p3805ahg-20-st 2p3805ahg 20-pin soic, tube, green commercial asm2i3805ahg-20-ar 2i3805ahg 20-pin ssop, tape & reel, green industrial asm2i3805ahg-20-at 2i3805ahg 20-pin ssop, tube, green industrial asm2i3805ahg-20-dr 2i3805ahg 20-pin qsop, tape & reel, green industrial asm2i3805ahg-20-dt 2i3805ahg 20-pin qsop, tube, green industrial asm2i3805ahg-20-sr 2i3805ahg 20-pin soic, tape & reel, green industrial asm2i3805ahg-20-st 2i3805ahg 20-pin soic, tube, green industrial asm2p3805ag-20-ar 2p3805ag 20-pin ssop, tape & reel, green commercial asm2p3805ag-20-at 2p3805ag 20-pin ssop, tube, green commercial asm2p3805ag-20-dr 2p3805ag 20-pin qsop, tape & reel, green commercial asm2p3805ag-20-dt 2p3805ag 20-pin qsop, tube, green commercial asm2p3805ag-20-sr 2p3805ag 20-pin soic, tape & reel, green commercial asm2p3805ag-20-st 2p3805ag 20-pin soic, tube, green commercial asm2i3805ag-20-ar 2i3805ag 20-pin sso p, tape & reel, green industrial ASM2I3805AG-20-AT 2i3805ag 20-pin ssop, tube, green industrial asm2i3805ag-20-dr 2i3805ag 20-pin qsop, tape & reel, green industrial asm2i3805ag-20-dt 2i3805ag 20-pin qsop, tube, green industrial asm2i3805ag-20-sr 2i3805ag 20-pin soic, tape & reel, green industrial asm2i3805ag-20-st 2i3805ag 20-pin soic, tube, green industrial
june 2005 asm2p3805ah rev 0.2 3.3v cmos buffer clock driver 12 of 13 notice: the information in this document is subject to change without notice. device ordering information asm2p3805ahg-20-dr licensed under us patent #5,488, 627, #6,646,463 and #5,631,920. o = sot u = msop s = soic e = tqfp t = tssop l = lqfp a = ssop u = msop v = tvsop p = pdip b = bga d = qsop q = q fn x = sc-70 device pin count x= automotive i= industrial p or n/c = commercial (-40c to +125c) (-40c to +85c) (0c to +70c) 1 = reserved 6 = power management 2 = non pll based 7 = power management 3 = emi reduction 8 = power management 4 = ddr support products 9 = hi performance 5 = std zero delay buffer 0 = reserved alliance semiconductor mixed signal product part number f = lead free and rohs compliant part g = green package r = tape & reel, t = tube or tray
june 2005 asm2p3805ah rev 0.2 3.3v cmos buffer clock driver 13 of 13 notice: the information in this document is subject to change without notice. ? copyright 2003 alliance semiconductor corporation. all rights reserved. our three-point logo, our name and intelliwatt are trademarks or registered trademarks of alliance. all other brand and product names may be the trademarks of their respective companies. alliance reserves the right to make ch anges to this document and its products at any time without notice. alliance assumes no responsibility for any errors t hat may appear in this document. the data contained herein represents alliance's best data and/or estimate s at the time of issuance. alliance rese rves the right to change or correct this data at any time, without notice. if the product described herein is under development, significant changes to these specifications are possible. the information in this product data sheet is intended to be general descriptive information for potential customers and users, and is not in tended to operate as, or provide, any guarantee or warrantee to any user or customer. alliance does not assume any responsibility or lia bility arising out of the applic ation or use of any product described herein, and disclaims any express or implied warrant ies related to the sale and/or use of alliance products including liability or warranties related to fitness for a particular purpose, mercha ntability, or infringement of any intellec tual property rights, except as express agreed to in alliance's terms and conditions of sale (which are available from alliance). all sales of alliance products are made exclusively according to alliance's terms and conditions of sale. the purchase of products from alliance does not convey a license under any pa tent rights, copyrights; mask works rights, trademarks, or any other intellectual property rights of alli ance or third parties. alliance does not aut horize its products for use as critical components in life-supporting systems where a malfunction or fa ilure may reasonably be expected to result in significant injury to the user, and the inclusion of alliance products in such life-supporting systems implies that the manufacturer assumes all risk of such use and agrees to indemnify alliance against all claims arising from such use. alliance semiconductor corporation 2575, augustine drive, santa clara, ca 95054 tel# 408-855-4900 fax: 408-855-4999 www.alsc.com copyright ? alliance semiconductor all rights reserved part number: asm2p3805ah document version: 0.2 note: this product utilizes us patent # 6,646,463 impedance emulator patent issued to alliance semiconductor, dated 11-11-2003

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