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AK6321024W-15 Datasheet(PDF) 1 Page - ACCUTEK MICROCIRCUIT CORPORATION |
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AK6321024W-15 Datasheet(HTML) 1 Page - ACCUTEK MICROCIRCUIT CORPORATION |
1 / 2 page DESCRIPTION The Accutek AK631024 SRAM Module consists of fast high perfor- mance SRAMs mounted on a low profile, 72 pin SIM or ZIP PCB. The module utilizes four 32 pin 1 Meg x 4 SRAMs in 400 mil SOJ packages and four decoupling capacitor chips mounted on each 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 15nSEC to 30nSEC in CMOS or BiCMOS technology. The Accutek module is designed to have a maximum seated height of 0.670 inch SIM or 0.550 inch ZIP to provide for the lowest height off the board. Each conforms to JEDEC-standard sizes and pin-out configurations. Using four pins for module memory density identifi- cation, PC0,PD1,PD2 and PD3 minimizes interchangeability and design considerations when changing from one module size to the other in customer applications. FEATURES · 1,048,576 x 32 SRAM module in high density configuration · JEDEC Standardized 72 pin SIM format · Common I/O, single OE functions with four separate chip selects (CE) · Low height, 0.670 inch SIM or 0.550 inch ZIP maximum · Presence Detect PD0 through PC3 for identifying module density · TTL compatible inputs and outputs · Single 5 volt power supply - AK6321024W, AK6321054Z · Single 3.3 volt power supply - AK6321024W/3.3, AK6321024Z/3.3 · Fast access times range from 15 nSEC BiCMOS to 25 nSEC · Power 170mA Active (15nS) 165mA Active (17nS) 160mA Active (20nS) 155mA Active (25nS) 10mA Standby · Downward pin compatible with 512K x 32 (AK632512) - 72 pin SIM or ZIP, and 256K x 32 (AK632256), 128K x 32 (AK632128), 64K x 32 (AK63264) and 32K x 32 (AK63232) - 64 pin SIM or ZIP designs · Operating temperature range in free air, 0 0Cto700C ELECTRICAL SPECIFICATIONS Timing diagrams and basic electrical characteristics are those of the stan- dard 1 Meg x 4 SRAMs used to construct these modules. Accutek’s module design allows the flexibility of selecting industry-compatible 1 Meg x 4 SRAMs from several semiconductor manufacturers. Accutek Microcircuit Corporation AK6321024W / AK6321024Z 1,048,576 x 32 Bit CMOS/BiCMOS Static Random Access Memory 1 36 37 72 1 36 37 72 72-Pin SIM 72-Pin ZIP Front View PIN NOMENCLATURE A0 -A19 Address Inputs CE1 -CE4 Chip Enable DQ1 -DQ32 Data In/Data Out OE Output Enable PD0 -PD3 Presence Detect Vcc 5v Supply Vss Ground WE Write Enable NC No Connect MODULE OPTIONS Leadless SIM: AK6321024W Leades ZIP: AK6321024Z Leaded SIP: AK6321024G PIN ASSIGNMENT PIN # SYMBOL PIN # SYMBOL PIN # SYMBOL PIN # SYMBOL 1NC 19 A1 37 CE455 A5 2NC 20 A8 38 CE3 56 A12 3 PD2 21 A2 39 A17 57 Vcc 4 PD3 22 A9 40 A16 58 A13 5 Vss 23 DQ13 41 OE 59 A6 6 PD0 24 DQ5 42 Vss 60 DQ21 7 PD1 25 DQ14 43 DQ25 61 DQ29 8 DQ1 26 DQ6 44 DQ17 62 DQ22 9 DQ9 27 DQ15 45 DQ26 63 DQ30 10 DQ2 28 DQ7 46 DQ18 64 DQ23 11 DQ10 29 DQ16 47 DQ27 65 DQ31 12 DQ3 30 DQ8 48 DQ19 66 DQ24 13 DQ11 31 Vss 49 DQ28 67 DQ32 14 DQ4 32 WE 50 DQ20 68 Vss 15 DQ12 33 A15 51 A3 69 A18 16 Vcc 34 A14 52 A10 70 A19 17 A0 35 CE253 A4 71 NC 18 A7 36 CE1 54 A11 72 NC PD0 = Vss PD2 = Vss PD1 = Open PD3 = Open FUNCTIONAL DIAGRAM |
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