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AK632128W-15 Datasheet(PDF) 1 Page - ACCUTEK MICROCIRCUIT CORPORATION |
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AK632128W-15 Datasheet(HTML) 1 Page - ACCUTEK MICROCIRCUIT CORPORATION |
1 / 2 page DESCRIPTION The Accutek AK632128 SRAM Module consists of fast high perfor- mance SRAMs mounted on a low height, 64 pin SIM or ZIP PCB. The module utilizes four 32 pin 128K x 8 SRAMs in 400 mil SOJ packages and four decoupling capacitors mounted on the front side of a printed circuit board. The SRAMs used have common I/O functions and single output en- able functions. Also, four separate chip select (CE) connections are used to independently enable the four bytes. The modules can be supplied in a variety of access time values from 7nSEC to 35nSEC in CMOS or BiCMOS technology. The Accutek module is designed to have a maximum seated height of 0.620 inch SIM or 0.540 inch ZIP to provide for the lowest height off the board. Each conforms to JEDEC-standard sizes and pin-out configurations. Using two pins for module denisty identification, PD0 and PD1, minimizes interchangeability and design consider- ations when changing from one module size to the other in cus- tomer applications. FEATURES · 131,072 x 32 bit organization · JEDEC Standard 64 pin SIM or ZIP format · Access times as fast as 7nSEC · TTL compatible inputs and outputs · Very low profile, 0.620 inch MAX seated height SIM Version · Very low profile, 0.540 inch MAX seated height ZIP Version · Single 5 Volt power supply - AK632128W, AK632128Z · Single 3.3 Volt power supply - AK63128W/3.3, AK632128Z/3.3 · Common I/O, single OE functions with four separate chip se- lects (CE) · Presence Detect PD0 and PD1 for identifying module density · Downward compatible with 32K x 32 (AK63232) and 64K x 32 AK63264) · Upward compatible with 256K x 32 (AK632256), 512K x 32 (AK632512) and 1 Meg x 32 (AK6321024) · Operating free air temperature 0 0 to 700C ELECTRICAL SPECIFICATIONS Timing diagrams and basic electrical characteristics are those of the standard 128K x 8 SRAMs used to construct these modules. Accutek’s module design allows the flexibility of selecting indus- try-compatible 128K x 8 SRAMs from at least seven semiconductor manufacturers. Accutek Microcircuit Corporation AK632128W / AK632128Z 131,072 x 32 Bit CMOS/BiCMOS Static Random Access Memory 1 32 33 64 1 32 33 64 Top View 64-Pin SIMM 64-Pin ZIP PIN NOMENCLATURE A0 -A16 Address Inputs CE1 -CE4 Chip Enable DQ1 -DQ32 Data In/Data Out OE Output Enable PD0 -PD1 Presence Detect Vcc Power Supply Vss Ground WE Write Enable NC No Connect MODULE OPTIONS Leadless SIM: AK632128W Leaded ZIP: AK632128Z PIN ASSIGNMENT PIN # SYMBOL PIN # SYMBOL PIN # SYMBOL PIN # SYMBOL 1 Vss 17 A2 33 CE449 A4 2 PD0 18 A9 34 CE3 50 A11 3 PD1 19 DQ13 35 NC 51 A5 4 DQ1 20 DQ5 36 A16 52 A12 5 DQ9 21 DQ14 37 OE 53 Vcc 6 DQ2 22 DQ6 38 Vss 54 A13 7 DQ10 23 DQ15 39 DQ25 55 A6 8 DQ3 24 DQ7 40 DQ17 56 DQ21 9 DQ11 25 DQ16 41 DQ26 57 DQ29 10 DQ4 26 DQ8 42 DQ18 58 DQ22 11 DQ12 27 Vss 43 DQ27 59 DQ30 12 Vcc 28 WE 44 DQ19 60 DQ23 13 A0 29 A15 45 DQ28 61 DQ31 14 A7 30 A14 46 DQ20 62 DQ24 15 A1 31 CE2 47A363 DQ32 16 A8 32 CE1 48 A10 64 Vss PD0 = Open PD1 = Open FUNCTIONAL DIAGRAM A0-A16 A0-A16 A0-A16 A0-A16 WE WE WE WE DQ1 - DQ8 DQ1 - DQ8 DQ1 - DQ8 DQ1 - DQ8 OE OE OE OE CE CE CE CE + + + + DQ1 - DQ8 DQ9 - DQ16 DQ17 - DQ24 DQ25 - DQ32 + A0-A16 17 + * * * * + * * * * + + + + WE OE CE1 CE2 CE3 CE4 |
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Similar Description - AK632128W-15 |
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