View HYR184820G-840_6859658.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

last modified on 7/13/99 1 hyr16xx30/hyr18xx20g rambus rimm modules (with 128/144 mb rdrams) direct rdram rimm modules perliminary information rev. 0.9 overview the direct rambus? rimm? module is a general purpose high-performance memory subsystem suitable for use in a broad range of applications including computer memory, personal computers, workstations, and other applications where high bandwidth and low latency are required. the 128 mb direct rambus rimm module consists of eight 128mb/ 144mb direct rambus dram (direct rdram?) devices. these are extremely high-speed cmos drams organized as 8m words by 16 or 18 bits. the use of rambus signaling level (rsl) tech- nology permits 600mhz to 800mhz transfer rates while using conventional system and board design technolo- gies. direct rdram devices are capable of sustained data transfers at 1.25 ns per two bytes (10ns per sixteen bytes). the rdram architecture enables the highest sustained bandwidth for multiple, simultaneous, randomly addressed, memory transactions. the sepa- rate control and data buses with independent row and column control yield over 95% bus efficiency. the rdram's 32-bank architecture supports up to four simultaneous transactions per device. form factor the rambus rimm modules are offered in a 184-pad 1mm edge connector pad pitch form factor suitable for either 184 or 168 contact rimm connectors. the rimm module is suitable for desktop and other system appli- cations. figure 1 shows an eight device rambus rimm module without heat spreader. features n high speed 800, 711 & 600 mhz rdram storage n 184 edge connector pads with 1mm pad spacing n maximum module pcb size: 133.5mm x 34.9mm x 1.37mm (5.21 x 1.36 x 0.05) n each rdram has 32 banks, for a total of 256banks on each 128mb module n gold plated edge connector pad contacts n serial presence detect (spd) support n operates from a 2.5 volt supply (5%) n low power and powerdown self refresh modes n separate row and column buses for higher effi- ciency siemens 6,(0(16 s i e m e n s s i e m e n s s i e m e n s s i e m e n s s i e m e n s s i e m e n s s i e m e n s s i e m e n s
page 2 last modified on 7/13/99 rambus rimm modules hyr16xx30g/hyr18xx20g part number designators organization capacity i/o freq. mhz part designator # of rdrams rdram density 64mb/72mb: 32mb x16 64mb 600 hyr163230g-653 4 128mb 32mb x16 64mb 711 hyr163230g-745 4 128mb 32mb x16 64mb 800 hyr163230g-845 4 128mb 32mb x16 64mb 800 hyr163230g-840 4 128mb 32mb x18 72mb 600 hyr183220g-653 4 144mb 32mb x18 72mb 711 hyr183220g-745 4 144mb 32mb x18 72mb 800 hyr183220g-845 4 144mb 32mb x18 72mb 800 hyr183220g-840 4 144mb 96mb/108mb 48mb x16 96mb 600 hyr164830g-653 6 128mb 48mb x16 96mb 711 hyr164830g-745 6 128mb 48mb x16 96mb 800 hyr164830g-845 6 128mb 48mb x16 96mb 800 hyr164830g-840 6 128mb 48mb x18 108mb 600 hyr184820g-653 6 144mb 48mb x18 108mb 711 hyr184820g-745 6 144mb 48mb x18 108mb 800 hyr184820g-845 6 144mb 48mb x18 108mb 800 HYR184820G-840 6 144mb 128mb/144mb: 64mb x16 128mb 600 hyr166430g-653 8 128mb 64mb x16 128mb 711 hyr166430g-711 8 128mb 64mb x16 128mb 800 hyr166430g-845 8 128mb 64mb x16 128mb 800 hyr166430g-840 8 128mb 64mb x18 144mb 600 hyr186420g-653 8 144mb 64mb x18 144mb 711 hyr186420g-711 8 144mb 64mb x18 144mb 800 hyr186420g-845 8 144mb 64mb x18 144mb 800 hyr186420g-840 8 144mb 256mb/288mb: 128mb x16 256mb 600 hyr1612830g-653 16 128mb 128mb x16 256mb 711 hyr1612830g-745 16 128mb 128mb x16 256mb 800 hyr1612830g-845 16 128mb 128mb x16 256mb 800 hyr1612830g-840 16 128mb 128mb x18 288mb 600 hyr1812820g-653 16 144mb 128mb x18 288mb 711 hyr1812820g-745 16 144mb 128mb x18 288mb 800 hyr1812820g-845 16 144mb 128mb x18 288mb 800 hyr1812820g-840 16 144mb
last modified on 7/13/99 page 3 rambus rimm modules hyr16xx30g/hyr18xx20g table 1: module pad number and signal names pad signal name pad signal name pad signal name pad signal name a1 gnd b1 gnd a47 nc b47 nc a2 ldqa8 b2 ldqa7 a48 nc b48 nc a3 gnd b3 gnd a49 nc b49 nc a4 ldqa6 b4 ldqa5 a50 nc b50 nc a5 gnd b5 gnd a51 vref b51 vref a6 ldqa4 b6 ldqa3 a52 gnd b52 gnd a7 gnd b7 gnd a53 scl b53 sa0 a8 ldqa2 b8 ldqa1 a54 vdd b54 vdd a9 gnd b9 gnd a55 sda b55 sa1 a10 ldqa0 b10 lcfm a56 svdd b56 svdd a11 gnd b11 gnd a57 swp b57 sa2 a12 lctmn b12 lcfmn a58 vdd b58 vdd a13 gnd b13 gnd a59 rsck b59 rcmd a14 lctm b14 nc a60 gnd b60 gnd a15 gnd b15 gnd a61 rdqb7 b61 rdqb8 a16 nc b16 lrow2 a62 gnd b62 gnd a17 gnd b17 gnd a63 rdqb5 b63 rdqb6 a18 lrow1 b18 lrow0 a64 gnd b64 gnd a19 gnd b19 gnd a65 rdqb3 b65 rdqb4 a20 lcol4 b20 lcol3 a66 gnd b66 gnd a21 gnd b21 gnd a67 rdqb1 b67 rdqb2 a22 lcol2 b22 lcol1 a68 gnd b68 gnd a23 gnd b23 gnd a69 rcol0 b69 rdqb0 a24 lcol0 b24 ldqb0 a70 gnd b70 gnd a25 gnd b25 gnd a71 rcol2 b71 rcol1 a26 ldqb1 b26 ldqb2 a72 gnd b72 gnd a27 gnd b27 gnd a73 rcol4 b73 rcol3 a28 ldqb3 b28 ldqb4 a74 gnd b74 gnd a29 gnd b29 gnd a75 rrow1 b75 rrow0 a30 ldqb5 b30 ldqb6 a76 gnd b76 gnd a31 gnd b31 gnd a77 nc b77 rrow2 a32 ldqb7 b32 ldqb8 a78 gnd b78 gnd a33 gnd b33 gnd a79 rctm b79 nc a34 lsck b34 lcmd a80 gnd b80 gnd a35 vcmos b35 vcmos a81 rctmn b81 rcfmn a36 sout b36 sin a82 gnd b82 gnd a37 vcmos b37 vcmos a83 rdqa0 b83 rcfm a38 nc b38 nc a84 gnd b84 gnd a39 gnd b39 gnd a85 rdqa2 b85 rdqa1 a40 nc b40 nc a86 gnd b86 gnd a41 vdd b41 vdd a87 rdqa4 b87 rdqa3 a42 vdd b42 vdd a88 gnd b88 gnd a43 nc b43 nc a89 rdqa6 b89 rdqa5 a44 nc b44 nc a90 gnd b90 gnd a45 nc b45 nc a91 rdqa8 b91 rdqa7 a46 nc b46 nc a92 gnd b92 gnd
page 4 last modified on 7/13/99 rambus rimm modules hyr16xx30g/hyr18xx20g table 2: module connector pad description signal module connector pads i/o type description gnd a1, a3, a5, a7, a9, a11, a13, a15, a17, a19, a21, a23, a25, a27, a29, a31, a33, a39, a52, a60, a62, a64, a66, a68, a70, a72, a74, a76, a78, a80, a82, a84, a86, a88, a90, a92, b1, b3, b5, b7, b9, b11, b13, b15, b17, b19, b21, b23, b25, b27, b29, b31, b33, b39, b52, b60, b62, b64, b66, b68, b70, b72, b74, b76, b78, b80, b82, b84, b86, b88, b90, b92 ground reference for rdram core and interface. 72 pcb connector pads. lcfm b10 irsl clock from master. interface clock used for receiving rsl signals from the channel. positive polarity. lcfmn b12 irsl clock from master. interface clock used for receiving rsl signals from the channel. negative polarity. lcmd b34 iv cmos serial command used to read from and write to the con- trol registers. also used for power management. lcol4.. lcol0 a20, b20, a22, b22, a24 irsl column bus. 5-bit bus containing control and address information for column accesses. lctm a14 irsl clock to master. interface clock used for transmitting rsl signals to the channel. positive polarity. lctmn a12 irsl clock to master. interface clock used for transmitting rsl signals to the channel. negative polarity. ldqa8.. ldqa0 a2, b2, a4, b4, a6, b6, a8, b8, a10 i/o rsl data bus a. a 9-bit bus carrying a byte of read or write data between the channel and the rdram. ldqa8 is non-functional on modules with x16 rdram devices ldqb8.. ldqb0 b32, a32, b30, a30, b28, a28, b26, a26, b24 i/o rsl data bus b. a 9-bit bus carrying a byte of read or write data between the channel and the rdram. ldqb8 is non-functional on modules with x16 rdram devices. lrow2.. lrow0 b16, a18, b18 irsl row bus. 3-bit bus containing control and address infor- mation for row accesses. lsck a34 iv cmos serial clock input. clock source used to read from and write to the rdram control registers. nc a16, b14, a38, b38, a40, b40, a77, b79 these pads are not connected. these 8 connector pads are reserved for future use. nc a43, b43, a44, b44, a45, b45, a46, b46, a47, b47, a48, b48, a49, b49, a50, b50 these pads are not connected. these 16 connector pads are reserved for future use. the 168 contact rimm con- nector does not connect to these pcb pads rcfm b83 irsl clock from master. interface clock used for receiving rsl signals from the channel. positive polarity. rcfmn b81 irsl clock from master. interface clock used for receiving rsl signals from the channel. negative polarity.
last modified on 7/13/99 page 5 rambus rimm modules hyr16xx30g/hyr18xx20g rcmd b59 iv cmos serial command input used to read from and write to the control registers. also used for power management. rcol4.. rcol0 a73, b73, a71, b71, a69 irsl column bus. 5-bit bus containing control and address information for column accesses. rctm a79 irsl clock to master. interface clock used for transmitting rsl signals to the channel. positive polarity. rctmn a81 irsl clock to master. interface clock used for transmitting rsl signals to the channel. negative polarity. rdqa8.. rdqa0 a91, b91, a89, b89, a87, b87, a85, b85, a83 i/o rsl data bus a. a 9-bit bus carrying a byte of read or write data between the channel and the rdram. rdqa8 is non-functional on modules with x16 rdram devices. rdqb8.. rdqb0 b61, a61, b63, a63, b65, a65, b67, a67, b69 i/o rsl data bus b. a 9-bit bus carrying a byte of read or write data between the channel and the rdram. rdqb8 is non-functional on modules with x16 rdram devices. rrow2.. rrow0 b77, a75, b75 irsl row bus. 3-bit bus containing control and address infor- mation for row accesses. rsck a59 iv cmos serial clock input. clock source used to read from and write to the rdram control registers. sa0 b53 isv dd serial presence detect address 0. sa1 b55 isv dd serial presence detect address 1. sa2 b57 isv dd serial presence detect address 2. scl a53 isv dd serial presence detect clock. sda a55 i/o sv dd serial presence detect data (open collector i/o). sin b36 i/o v cmos serial i/o for reading from and writing to the control registers. attaches to sio0 of the first rdram on the module. sout a36 i/o v cmos serial i/o for reading from and writing to the control registers. attaches to sio1 of the last rdram on the module. sv dd a56, b56 spd voltage. used for signals scl, sda, swe, sa0, sa1 and sa2. swp a57 isv dd serial presence detect write protect (active high). when low, the spd can be written as well as read. v cmos a35, b35, a37, b37 cmos i/o voltage. used for signals cmd, sck, sin, sout. vdd a41, a42, a54, a58, b41, b42, b54, b58 supply voltage for the rdram core and interface logic. vref a51, b51 logic threshold reference voltage for rsl signals. signal module connector pads i/o type description
page 6 last modified on 7/13/99 rambus rimm modules hyr16xx30g/hyr18xx20g rimm module functional diagram dqa8 dqa7 dqa6 dqa5 dqa4 dqa3 dqa2 dqa1 dqa0 cfm cfmn ctm ctmn row2 row1 row0 col4 col3 col2 col1 col0 dqb0 dqb1 dqb2 dqb3 dqb4 dqb5 dqb6 dqb7 dqb8 sio1 sio0 sck cmd vref direct rdram (128/144mb) rdqa8 rdqa7 rdqa6 rdqa5 rdqa4 rdqa3 rdqa2 rdqa1 rdqa0 rcfm rcfmn rctm rctmn rrow2 rrow1 rrow0 rcol4 rcol3 rcol2 rcol1 rcol0 rdqb0 rdqb1 rdqb2 rdqb3 rdqb4 rdqb5 rdqb6 rdqb7 rdqb8 ldqa8 ldqa7 ldqa6 ldqa5 ldqa4 ldqa3 ldqa2 ldqa1 ldqa0 lcfm lcfmn lctm lctmn lrow2 lrow1 lrow0 lcol4 lcol3 lcol2 lcol1 lcol0 ldqb0 ldqb1 ldqb2 ldqb3 ldqb4 ldqb5 ldqb6 ldqb7 ldqb8 u1 u2 u3 un . . . sin lsck lcmd vref sout rsck rcmd vdd gnd 2 per rdram scl sda a0 a1 scl sa[0:2] sda serial presence detect note 1: rambus channel signals form a loop through the rimm module, with the exception of the sio dqa8 dqa7 dqa6 dqa5 dqa4 dqa3 dqa2 dqa1 dqa0 cfm cfmn ctm ctmn row2 row1 row0 col4 col3 col2 col1 col0 dqb0 dqb1 dqb2 dqb3 dqb4 dqb5 dqb6 dqb7 dqb8 sio1 sio0 sck cmd vref direct rdram (128/144mb) dqa8 dqa7 dqa6 dqa5 dqa4 dqa3 dqa2 dqa1 dqa0 cfm cfmn ctm ctmn row2 row1 row0 col4 col3 col2 col1 col0 dqb0 dqb1 dqb2 dqb3 dqb4 dqb5 dqb6 dqb7 dqb8 sio1 sio0 sck cmd vref direct rdram (128/144mb) dqa8 dqa7 dqa6 dqa5 dqa4 dqa3 dqa2 dqa1 dqa0 cfm cfmn ctm ctmn row2 row1 row0 col4 col3 col2 col1 col0 dqb0 dqb1 dqb2 dqb3 dqb4 dqb5 dqb6 dqb7 dqb8 sio1 sio0 sck cmd vref direct rdram (128/144mb) 0.1 m f vcmos gnd 1 per 2 rdrams 0.1 m f vref gnd 1 per 0.1 m f 2 rdrams puls one near connector vcc svdd swp svdd gnd module capacity n 64mb / 72mb 96mb / 108mb 128mb / 144mb 4 6 8 256mb/288mb 16 chain. note 2: see serial presence detection specification for information on the spd device and its contents. 0.1 m f
last modified on 7/13/99 page 7 rambus rimm modules hyr16xx30g/hyr18xx20g table 3: module connector pad description signal module connector pads i/o type description gnd a1, a3, a5, a7, a9, a11, a13, a15, a17, a19, a21, a23, a25, a27, a29, a31, a33, a39, a52, a60, a62, a64, a66, a68, a70, a72, a74, a76, a78, a80, a82, a84, a86, a88, a90, a92, b1, b3, b5, b7, b9, b11, b13, b15, b17, b19, b21, b23, b25, b27, b29, b31, b33, b39, b52, b60, b62, b64, b66, b68, b70, b72, b74, b76, b78, b80, b82, b84, b86, b88, b90, b92 ground reference for rdram core and interface. 72 pcb connector pads. lcfm b10 irsl clock from master. interface clock used for receiving rsl signals from the channel. positive polarity. lcfmn b12 irsl clock from master. interface clock used for receiving rsl signals from the channel. negative polarity. lcmd b34 iv cmos serial command used to read from and write to the con- trol registers. also used for power management. lcol4.. lcol0 a20, b20, a22, b22, a24 irsl column bus. 5-bit bus containing control and address information for column accesses. lctm a14 irsl clock to master. interface clock used for transmitting rsl signals to the channel. positive polarity. lctmn a12 irsl clock to master. interface clock used for transmitting rsl signals to the channel. negative polarity. ldqa8.. ldqa0 a2, b2, a4, b4, a6, b6, a8, b8, a10 i/o rsl data bus a. a 9-bit bus carrying a byte of read or write data between the channel and the rdram. ldqa8 is non-functional on modules with x16 rdram devices ldqb8.. ldqb0 b32, a32, b30, a30, b28, a28, b26, a26, b24 i/o rsl data bus b. a 9-bit bus carrying a byte of read or write data between the channel and the rdram. ldqb8 is non-functional on modules with x16 rdram devices. lrow2.. lrow0 b16, a18, b18 irsl row bus. 3-bit bus containing control and address infor- mation for row accesses. lsck a34 iv cmos serial clock input. clock source used to read from and write to the rdram control registers. nc a16, b14, a38, b38, a40, b40, a77, b79 these pads are not connected. these 8 connector pads are reserved for future use. nc a43, b43, a44, b44, a45, b45, a46, b46, a47, b47, a48, b48, a49, b49, a50, b50 these pads are not connected. these 16 connector pads are reserved for future use. the 168 contact rimm con- nector does not connect to these pcb pads rcfm b83 irsl clock from master. interface clock used for receiving rsl signals from the channel. positive polarity. rcfmn b81 irsl clock from master. interface clock used for receiving rsl signals from the channel. negative polarity.
page 8 last modified on 7/13/99 rambus rimm modules hyr16xx30g/hyr18xx20g rcmd b59 iv cmos serial command input used to read from and write to the control registers. also used for power management. rcol4.. rcol0 a73, b73, a71, b71, a69 irsl column bus. 5-bit bus containing control and address information for column accesses. rctm a79 irsl clock to master. interface clock used for transmitting rsl signals to the channel. positive polarity. rctmn a81 irsl clock to master. interface clock used for transmitting rsl signals to the channel. negative polarity. rdqa8.. rdqa0 a91, b91, a89, b89, a87, b87, a85, b85, a83 i/o rsl data bus a. a 9-bit bus carrying a byte of read or write data between the channel and the rdram. rdqa8 is non-functional on modules with x16 rdram devices. rdqb8.. rdqb0 b61, a61, b63, a63, b65, a65, b67, a67, b69 i/o rsl data bus b. a 9-bit bus carrying a byte of read or write data between the channel and the rdram. rdqb8 is non-functional on modules with x16 rdram devices. rrow2.. rrow0 b77, a75, b75 irsl row bus. 3-bit bus containing control and address infor- mation for row accesses. rsck a59 iv cmos serial clock input. clock source used to read from and write to the rdram control registers. sa0 b53 isv dd serial presence detect address 0. sa1 b55 isv dd serial presence detect address 1. sa2 b57 isv dd serial presence detect address 2. scl a53 isv dd serial presence detect clock. sda a55 i/o sv dd serial presence detect data (open collector i/o). sin b36 i/o v cmos serial i/o for reading from and writing to the control registers. attaches to sio0 of the first rdram on the module. sout a36 i/o v cmos serial i/o for reading from and writing to the control registers. attaches to sio1 of the last rdram on the module. sv dd a56, b56 spd voltage. used for signals scl, sda, swe, sa0, sa1 and sa2. swp a57 isv dd serial presence detect write protect (active high). when low, the spd can be written as well as read. v cmos a35, b35, a37, b37 cmos i/o voltage. used for signals cmd, sck, sin, sout. vdd a41, a42, a54, a58, b41, b42, b54, b58 supply voltage for the rdram core and interface logic. vref a51, b51 logic threshold reference voltage for rsl signals. signal module connector pads i/o type description
last modified on 7/13/99 page 9 rambus rimm modules hyr16xx30g/hyr18xx20g absolute maximum ratings dc recommended electrical conditions symbol parameter min max unit v i,abs voltage applied to any rsl or cmos signal pad with respect to gnd - 0.3 v dd + 0.3 v v dd,abs voltage on vdd with respect to gnd - 0.5 v dd + 1.0 v t store storage temperature - 50 100 c symbol parameter and conditions min max unit v dd supply voltage 2.50 - 0.13 2.50 + 0.13 v v cmos cmos i/o power supply at pad for 2.5v controllers: cmos i/o power supply at pad for 1.8v controllers: 2.5 - 0.13 1.8 - 0.1 2.5 + 0.25 1.8 + 0.2 v v v ref reference voltage 1.4 - 0.2 1.4 + 0.2 v v il rsl input low voltage v ref - 0.5 v ref - 0.2 v v ih rsl input high voltage v ref + 0.2 v ref + 0.5 v v il,cmos cmos input low voltage - 0.3 0.5v cmos - 0.25 v v ih,cmos cmos input high voltage 0.5v cmos + 0.25 v cmos + 0.7 v v ol,cmos cmos output low voltage @ i ol,cmos = 1ma 0.3 v v oh,cmos cmos output high voltage @ i oh,cmos = -0.25ma v cmos - 0.3 v i ref v ref current @ v ref,max -10 x no. rdrams a 10 x no. rdrams a a. the table below shows the number of 128mb or 144mb rdram devices contained in a rimm module of listed storage capacity. m a i sck,cmd cmos input leakage current @ (0 v cmos v dd ) -10 x no. rdrams a 10 x no. rdrams a m a i sin,sout cmos input leakage current @ (0 v cmos v dd ) -10.0 10.0 m a rimm module capacity: 64/72mb 96/108mb 128/144mb 256/288mb number of 128mb or 144mb rdram devices: 4 6 8 16
page 10 last modified on 7/13/99 rambus rimm modules hyr16xx30g/hyr18xx20g ac electrical specifications ac electrical specifications for rimm modules symbol parameter and conditions min typ max unit z module impedance 25.2 28 30.8 w t pd propagation delay, all rsl signals - see table a ns d t pd propagation delay variation of rsl signals with respect to an average clock delay b -10 10 ps d t pd-cmos propagation delay variation of sck and cmd signals with respect to an average clock delay b -100 100 ps v a /v in attenuation limit see table a % v xf /v in forward crosstalk coefficient (300ps input rise time @ 20%-80%) see table a % v xb /v in backward crosstalk coefficient (300ps input rise time @ 20%-80%) see table a % a. table below lists parameters and specifications for different storage capacity rimm modules that use 128mb or 144mb rdram de vices. b. average clock delay is defined as the average delay from finger to finger of all rsl clock nets (ctm, ctmn, cfm, and cfmn). symbol rimm module capacity: no. of 128/144mb rdrams: 64/72mb 4 96/108mb 6 128/144mb 8 256/288mb 16 unit parameter and condition for -800 to-600 rimm modules max max max max t pd propagation delay, all rsl signals -800 1.25 tbd 1.50 2.06 ns propagation delay, all rsl signals -600 1.25 tbd 1.60 2.10 ns v a /v in attenuation limit -800 12 tbd 16 25 % attenuation limit -600 8 tbd 10 21 % v xf /v in forward crosstalk coefficient (300ps input rise time @ 20%-80%) -800 2tbd4 8% forward crosstalk coefficient (300ps input rise time @ 20%-80%) -600 2tbd4 8% v xb /v in backward crosstalk coefficient (300ps input rise time @ 20%-80%) -800 1.5 tbd 2.0 2.5 % backward crosstalk coefficient (300ps input rise time @ 20%-80%) -600 1.5 tbd 2.0 2.5 % r dc dc resistance limit 0.6 tbd 0.8 1.2 w dc resistance limit 0.6 tbd 10.8 1.2 w
last modified on 7/13/99 page 11 rambus rimm modules hyr16xx30g/hyr18xx20g rimm module current profile i dd rimm module capacity: no. of 128/144mb rdrams: 64/72mb 4 96/108mb 6 128/144mb 8 256/288mb 16 unit rimm module power conditions a max max max max i dd1 one rdram in read, balance in nap mode 587 tbd 604 637 ma i dd2 one rdram in read, balance in standby mode, no commands 878 tbd 1282 2090 ma i dd3 one rdram in read, balance in active mode, no commands 1019 tbd 1611 2795 ma a. specifications in this table are maximum guidelines. actual power will depend on individual memory controller and usage pat- terns.
page 12 last modified on 7/13/99 rambus rimm modules hyr16xx30g/hyr18xx20g figure 1: rimm module pcb physical description a b c c d e dimension description min nom max unit a pcb length 133.20 5.244 133.35 5.250 133.50 5.256 mm in b pcb height 34.93 1.375 mm in c center-center pad width from pad a1 to a46, a47 to a92, b1 to b46 or b47 to b92 45.00 1.770 mm in d spacing from pcb left edge to connector key notch 55.25 2.175 mm in e spacing from contact pad pcb edge to side edge retainer notch 17.78 0.700 mm in fpcb thickness 1.17 0.046 1.27 0.050 1.37 0.054 mm in g heat spreader thickness from pcb surface (one side) to heat spreader top surface 3.00 0.118 mm in pad a-1 pad a-92
last modified on 7/13/99 page 13 rambus rimm modules hyr16xx30g/hyr18xx20g standard rimm module marking the rimm modules available from rimm module manufacturers will be marked per figure 2 below. this industry standard marking will help oems and users identify the rambus rimm modules when used in specific system applications. this will assist oems or users to specify and correctly verify if the correct rimm modules are installed in their systems. in the diagram, a label is shown attached to the right-center side of the rimm modules heat spreader. rimm modules without heat spreaders will have a similar label attached to the lower right side of the rimm module pcb. this label is in addition to any vendor specific label or marking. information contained in this area is specific for the rimm module and provides rdram information without requiring removal of the rimm modules heat spreader . a b c d e label field description marked text unit amodule mem- ory capacity number of 8-bit or 9-bit mbytes of rdram storage in rimm module 128mb, 96mb, 64mb, 48mb, 32mb mbytes bnumber of rdrams number of rdram devices contained in the rimm module /16, /12, /8, /6, /4 rdram devices c ecc support indicates whether the rimm module supports 8-bit (no ecc) or 9-bit (ecc) bytes blank = 8-bit byte ecc = 9-bit byte d reserved reserved for future use blank e memory speed data transfer speed for rdram rimm module 800, 711, 600 mhz figure 2: standard rimm module marking
page 14 last modified on 7/13/99 rambus rimm modules hyr16xx30g/hyr18xx20g

▲Up To Search▲

Price & Availability of HYR184820G-840

	To Download HYR184820G-840 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .