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gs8342d07/10/19/37bd-450/400/350/333/300 36mb sigmaquad-ii+ tm burst of 4 sram 450 mhz?300 mhz 1.8 v v dd 1.8 v and 1.5 v i/o 165-bump bga commercial temp industrial temp rev: 1.02a 8/2017 1/29 ? 2011, gsi technology specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. features ? 2.0 clock latency ? simultaneous read and write sigmaquad? interface ? jedec-standard pinout and package ? dual double data rate interface ? byte write controls sampled at data-in time ? burst of 4 read and write ? on-die termination (odt) on data (d), byte write ( bw ), and clock (k, k ) inputs ? 1.8 v +100/C100 mv core power supply ? 1.5 v or 1.8 v hstl interface ? pipelined read operation ? fully coherent read and write pipelines ? zq pin for programmable output drive strength ? data valid pin (qvld) supp ort ? ieee 1149.1 jtag-compliant boundary scan ? 165-bump, 13 mm x 15 mm, 1 mm bump pitch bga package ? rohs-compliant 165-bump bga pa ckage available sigmaquad? family overview the gs8342d07/10/19/37bd are built in compliance with the sigmaquad-ii+ sram pinout standard for separate i/o synchronous srams. they ar e 37,748,736-bit (36mb) srams. the gs8342d07/10/19/37bd sigmaquad srams are just one element in a family of low power, low voltage hstl i/o srams designed to ope rate at the speeds needed to implement economical high performance networking systems. clocking and addr essing schemes the gs8342d07/10/19/37bd sigmaquad-ii+ srams are synchronous devices. they empl oy two input register clock inputs, k and k . k and k are independent single-ended clock inputs, not differential inputs to a single differential clock input buffer. each internal read and write ope rat ion in a sigmaquad-ii+ b4 ram is four times wider than the device i/o bus. an input data bus de-multiplexer is used to accumulate incoming data before it is simultaneously wr itten to the memory array. an output data multiplexer is used to capture the data produced from a single memory array r ead and then route it to the appropriate output drivers as n eeded. therefore the address field of a sigmaquad-ii+ b4 ra m is always two address pins less than the advertised index depth (e.g., the 4m x 8 has a 1m addressable index). parameter synopsis -450 -400 -350 -333 -300 tkhkh 2.22 ns 2.5 ns 2.86 ns 3.0 ns 3.3 ns tkhqv 0.45 ns 0.45 ns 0.45 ns 0.45 ns 0.45 ns
4m x 8 sigmaquad-ii sram?top view 1 2 3 4 5 6 7 8 9 10 11 a cq nc/sa (72mb) sa w nw1 k nc/sa (144mb) r sa sa cq b nc nc nc sa nc/sa (288mb) k nw0 sa nc nc q3 c nc nc nc v ss sa nc sa v ss nc nc d3 d nc d4 nc v ss v ss v ss v ss v ss nc nc nc e nc nc q4 v ddq v ss v ss v ss v ddq nc d2 q2 f nc nc nc v ddq v dd v ss v dd v ddq nc nc nc g nc d5 q5 v ddq v dd v ss v dd v ddq nc nc nc h doff v ref v ddq v ddq v dd v ss v dd v ddq v ddq v ref zq j nc nc nc v ddq v dd v ss v dd v ddq nc q1 d1 k nc nc nc v ddq v dd v ss v dd v ddq nc nc nc l nc q6 d6 v ddq v ss v ss v ss v ddq nc nc q0 m nc nc nc v ss v ss v ss v ss v ss nc nc d0 n nc d7 nc v ss sa sa sa v ss nc nc nc p nc nc q7 sa sa qvld sa sa nc nc nc r tdo tck sa sa sa odt sa sa sa tms tdi 11 x 15 bump bga?13 x 15 mm body?1 mm bump pitch notes: 1. nw0 controls writes to d0:d3. nw1 controls writes to d4:d7. 2. pins a2, a7, and b5 are the expansion addresses. gs8342d07/10/19/37bd-450/400/350/333/300 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.02a 8/2017 2/29 ? 2011, gsi technology 4m x 9 sigmaquad-ii sram?top view 1 2 3 4 5 6 7 8 9 10 11 a cq nc/sa (72mb) sa w nc k nc/sa (144mb) r sa sa cq b nc nc nc sa nc/sa (288mb) k bw0 sa nc nc q4 c nc nc nc v ss sa nc sa v ss nc nc d4 d nc d5 nc v ss v ss v ss v ss v ss nc nc nc e nc nc q5 v ddq v ss v ss v ss v ddq nc d3 q3 f nc nc nc v ddq v dd v ss v dd v ddq nc nc nc g nc d6 q6 v ddq v dd v ss v dd v ddq nc nc nc h doff v ref v ddq v ddq v dd v ss v dd v ddq v ddq v ref zq j nc nc nc v ddq v dd v ss v dd v ddq nc q2 d2 k nc nc nc v ddq v dd v ss v dd v ddq nc nc nc l nc q7 d7 v ddq v ss v ss v ss v ddq nc nc q1 m nc nc nc v ss v ss v ss v ss v ss nc nc d1 n nc d8 nc v ss sa sa sa v ss nc nc nc p nc nc q8 sa sa qvld sa sa nc d0 q0 r tdo tck sa sa sa odt sa sa sa tms tdi 11 x 15 bump bga?13 x 15 mm bo dy?1 mm bump pitch notes: 1. bw0 controls writes to d0:d8. 2. pins a2, a7, and b5 are the expansion addresses. gs8342d07/10/19/37bd-450/400/350/333/300 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.02a 8/2017 3/29 ? 2011, gsi technology 2m x 18 sigmaquad-ii+ sram?top view 1 2 3 4 5 6 7 8 9 10 11 a cq nc/sa (144mb) sa w bw1 k nc/sa (288mb ) r sa nc/sa (72mb) cq b nc q9 d9 sa nc k bw0 sa nc nc q8 c nc nc d10 v ss sa nc sa v ss nc q7 d8 d nc d11 q10 v ss v ss v ss v ss v ss nc nc d7 e nc nc q11 v ddq v ss v ss v ss v ddq nc d6 q6 f nc q12 d12 v ddq v dd v ss v dd v ddq nc nc q5 g nc d13 q13 v ddq v dd v ss v dd v ddq nc nc d5 h doff v ref v ddq v ddq v dd v ss v dd v ddq v ddq v ref zq j nc nc d14 v ddq v dd v ss v dd v ddq nc q4 d4 k nc nc q14 v ddq v dd v ss v dd v ddq nc d3 q3 l nc q15 d15 v ddq v ss v ss v ss v ddq nc nc q2 m nc nc d16 v ss v ss v ss v ss v ss nc q1 d2 n nc d17 q16 v ss sa sa sa v ss nc nc d1 p nc nc q17 sa sa qvld sa sa nc d0 q0 r tdo tck sa sa sa odt sa sa sa tms tdi 11 x 15 bump bga?13 x 15 mm bo dy?1 mm bump pitch notes: 1. bw0 controls writes to d0:d8. bw1 controls writes to d9:d17. 2. pins a2, a7, and a10 are the expansion addresses. gs8342d07/10/19/37bd-450/400/350/333/300 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.02a 8/2017 4/29 ? 2011, gsi technology 1m x 36 sigmaquad-ii+ sram?top view 1 2 3 4 5 6 7 8 9 10 11 a cq nc/sa (288mb ) nc/sa (72mb) w bw2 k bw1 r sa nc/sa (144mb) cq b q27 q18 d18 sa bw3 k bw0 sa d17 q17 q8 c d27 q28 d19 v ss sa nc sa v ss d16 q7 d8 d d28 d20 q19 v ss v ss v ss v ss v ss q16 d15 d7 e q29 d29 q20 v ddq v ss v ss v ss v ddq q15 d6 q6 f q30 q21 d21 v ddq v dd v ss v dd v ddq d14 q14 q5 g d30 d22 q22 v ddq v dd v ss v dd v ddq q13 d13 d5 h doff v ref v ddq v ddq v dd v ss v dd v ddq v ddq v ref zq j d31 q31 d23 v ddq v dd v ss v dd v ddq d12 q4 d4 k q32 d32 q23 v ddq v dd v ss v dd v ddq q12 d3 q3 l q33 q24 d24 v ddq v ss v ss v ss v ddq d11 q11 q2 m d33 q34 d25 v ss v ss v ss v ss v ss d10 q1 d2 n d34 d26 q25 v ss sa sa sa v ss q10 d9 d1 p q35 d35 q26 sa sa qvld sa sa q9 d0 q0 r tdo tck sa sa sa odt sa sa sa tms tdi 11 x 15 bump bga?13 x 15 mm bo dy?1 mm bump pitch notes: 3. bw0 controls writes to d0:d8; bw1 controls writes to d9:d17; bw2 controls writes to d18:d26; bw3 controls writes to d27:d35 4. pins a2, a3, and a10 are the expansion addresses. gs8342d07/10/19/37bd-450/400/350/333/300 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.02a 8/2017 5/29 ? 2011, gsi technology pin description table symbol description type comments sa synchronous address inputs input ? r synchronous read input active low w synchronous write input active low bw0 ? bw3 synchronous byte writes input active low nw0 ? nw1 synchronous nybble writes input active low (x8 only) k input clock input active high k input clock input active low tms test mode select input ? tdi test data input input ? tck test clock input input ? tdo test data output output ? v ref hstl input reference voltage input ? zq output impedance matching input input ? qn synchronous data outputs output ? dn synchronous data inputs input ? doff disable dll when low input active low cq output echo clock output ? cq output echo clock output ? v dd power supply supply 1.8 v nominal v ddq isolated output buffer supply supply 1.8 v or 1.5 v nominal v ss power supply: ground supply ? qvld q valid output output ? odt on-die termination input active high nc no connect ? ? gs8342d07/10/19/37bd-450/400/350/333/300 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.02a 8/2017 6/29 ? 2011, gsi technology notes: 1. nc = not connected to die or any other pin 2. when zq pin is directly connected to v ddq , output impedance is set to minimum value and it cannot be connected to ground or left unconnected. 3. k, k cannot be set to v ref voltage. gs8342d07/10/19/37bd-450/400/350/333/300 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.02a 8/2017 7/29 ? 2011, gsi technology background 6 h s d u d w h , 2 6 5 $ 0 v i u r p d v \ v w h p d u f k l w h f w x u h s r l q w r i y l h z d u h d w w u d f w l y h l q d s s o l f d w l r q v z k h u h d o w h u q d w l q j u h d g v d q g z u l w h v d u h q h h g h g 7 k h u h i r u h w k h 6 l j p d 4 x d g , , 6 5 $ 0 l q w h u i d f h d q g w u x w k w d e o h d u h r s w l p l ] h g i r u d o w h u q d w l q j u h d g v d q g z u l w h v 6 h s d u d w h , 2 6 5 $ 0 v d u h x q s r s x o d u l q d s s o l f d w l r q v z k h u h p x o w l s o h u h d g v r u p x o w l s o h z u l w h v d u h q h h g h g e h f d x v h e x u v w u h d g r u z u l w h w u d q v i h u v i u r p 6 h s d u d w h , 2 6 5 $ 0 v f d q f x w w k h 5 $ 0 ? v e d q g z l g w k l q k d o i sigmaquad-ii+ b4 sram ddr read 7 k h v w d w x v r i w k h $ g g u h v v , q s x w : d q g 5 s l q v d u h v d p s o h g e \ w k h u l v l q j h g j h v r i . : d q g 5 k l j k f d x v h v f k l s g l v d e o h $ / r z r q w k h 5 h d g ( q d e o h s l q 5 e h j l q v d u h d g f \ f o h 5 l v d o z d \ v l j q r u h g l i w k h s u h y l r x v f r p p d q g o r d g h g z d v d u h d g f r p p d q g & |