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IS61DDB42M18 Datasheet(PDF) 2 Page - Integrated Silicon Solution, Inc |
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IS61DDB42M18 Datasheet(HTML) 2 Page - Integrated Silicon Solution, Inc |
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2 / 26 page  2 Integrated Silicon Solution, Inc. — 1-800-379-4774 Rev. B 07/09/04 ISSI® 36 Mb (1M x 36 & 2M x 18) DDR-II (Burst of 4) CIO Synchronous SRAMs x36 FBGA Pinout (Top View) 12 34 56 78 9 10 11 ACQ VSS/SA* SA R/W BW2 K BW1 LD SA VSS/SA* CQ B NC DQ27 DQ18 SA BW3 KBW0 SA NC NC DQ8 CNC NC DQ28 VSS SA SA0 SA1 VSS NC DQ17 DQ7 DNCDQ29 DQ19 VSS VSS VSS VSS VSS NC NC DQ16 ENC NC DQ20 VDDQ VSS VSS VSS VDDQ NC DQ15 DQ6 F NC DQ30 DQ21 VDDQ VDD VSS VDD VDDQ NC NC DQ5 G NC DQ31 DQ22 VDDQ VDD VSS VDD VDDQ NC NC DQ14 HDoff VREF VDDQ VDDQ VDD VSS VDD VDDQ VDDQ VREF ZQ JNC NC DQ32 VDDQ VDD VSS VDD VDDQ NC DQ13 DQ4 KNC NC DQ23 VDDQ VDD VSS VDD VDDQ NC DQ12 DQ3 L NC DQ33 DQ24 VDDQ VSS VSS VSS VDDQ NC NC DQ2 MNC NC DQ34 VSS VSS VSS VSS VSS NC DQ11 DQ1 NNCDQ35 DQ25 VSS SA SA SA VSS NC NC DQ10 P NC NC DQ26 SA SA C SA SA NC DQ9 DQ0 R TDO TCK SASASA C SA SA SA TMS TDI • The following pins are reserved for higher densities: 2A for 144Mb, 10A for 72Mb. • BW0 controls writes to DQ0–DQ8; BW1 controls writes to DQ9–DQ17; BW2 controls writes to DQ18–DQ26; BW3 controls writes to DQ27–DQ35. x18 FBGA Pinout (Top View) 12 34 56 78 9 10 11 ACQ VSS/SA* SA R/W BW1 K NC/SA LD SA SA CQ B NC DQ9 NC SA NC/SA K BW0 SA NC NC DQ8 CNC NC NC VSS SA SA0 SA1 VSS NC DQ7 NC DNC NC DQ10 VSS VSS VSS VSS VSS NC NC NC ENC NC DQ11 VDDQ VSS VSS VSS VDDQ NC NC DQ6 FNC DQ12 NC VDDQ VDD VSS VDD VDDQ NC NC DQ5 GNC NC DQ13 VDDQ VDD VSS VDD VDDQ NC NC NC HDoff VREF VDDQ VDDQ VDD VSS VDD VDDQ VDDQ VREF ZQ JNC NC NC VDDQ VDD VSS VDD VDDQ NC DQ4 NC KNC NC DQ14 VDDQ VDD VSS VDD VDDQ NC NC DQ3 LNC DQ15 NC VDDQ VSS VSS VSS VDDQ NC NC DQ2 MNC NC NC VSS VSS VSS VSS VSS NC DQ1 NC NNC NC DQ16 VSS SA SA SA VSS NC NC NC P NC NC DQ17 SA SA C SA SA NC NC DQ0 R TDO TCK SASASA C SA SA SA TMS TDI • The following pin is reserved for higher densities: 2A for 72Mb, 7A for 144Mb, 5B for 288Mb. • BW0 controls writes to DQ0–DQ8; BW1 controls writes to DQ9–DQ17 |
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