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| DESCRIPTION Accutek Microcircuit Corporation AK6321024W / AK6321024Z 1,048,576 x 32 Bit CMOS/BiCMOS Static Random Access Memory Front View 72-Pin SIM The Accutek AK631024 SRAM Module consists of fast high performance 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 enable 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 identification, PC0, PD1, PD2 and PD3 minimizes interchangeability and design considerations when changing from one module size to the other in customer applications. 1 36 37 72 72-Pin ZIP 1 36 37 72 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, 00C to 700C ELECTRICAL SPECIFICATIONS Timing diagrams and basic electrical characteristics are those of the standard 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. PIN NOMENCLATURE A0 - A19 CE1 - CE4 DQ1 - DQ32 OE PD0 - PD3 Vcc Vss WE NC Address Inputs Chip Enable Data In/Data Out Output Enable Presence Detect 5v Supply Ground Write Enable No Connect PIN ASSIGNMENT PIN # SYMBOL PIN # SYMBOL PIN # SYMBOL PIN # SYMBOL FUNCTIONAL DIAGRAM CE4 CE3 A17 A16 OE Vss DQ25 DQ17 DQ26 DQ18 DQ27 DQ19 DQ28 DQ20 A3 A10 A4 A11 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 A5 A12 Vcc A13 A6 DQ21 DQ29 DQ22 DQ30 DQ23 DQ31 DQ24 DQ32 Vss A18 A19 NC NC 1 2 3 4 5 6 7 8 9 10 11 12 NC NC PD2 PD3 Vss PD0 PD1 DQ1 DQ9 DQ2 DQ10 DQ3 DQ11 DQ4 DQ12 Vcc A0 A7 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 A1 A8 A2 A9 DQ13 DQ5 DQ14 DQ6 DQ15 DQ7 DQ16 DQ8 Vss WE A15 A14 CE2 CE1 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 MODULE OPTIONS Leadless SIM: AK6321024W Leades ZIP: AK6321024Z Leaded SIP: AK6321024G 13 14 15 16 17 18 PD0 = Vss PD1 = Open PD2 = Vss PD3 = Open ORDERING INFORMATION PART NUMBER CODING INTERPRETATION Position 1 2 Product AK = Accutek Memory Type 4 = Dynamic RAM 5 = CMOS Dynamic RAM 6 = Static RAM Organization/Word Width 1 = by 1 16 = by 16 4 = by 4 32 = by 32 8 = by 8 36 = by 36 9 = by 9 Size/Bits Depth 64 = 64K 4096 = 4 MEG 256 = 256K 8192 = 8 MEG 1024 = 1 MEG 16384 = 16 MEG Package Type G = Single In-Line Package (SIP) S = Single In-Line Module (SIM) D = Dual In-Line Package (DIP) W = .050 inch Pitch Edge Connect Z = Zig-Zag In-Line Package (ZIP) Special Designation P = Page Mode N = Nibble Mode K = Static Column Mode W = Write Per Bit Mode V = Video Ram Separator - = Commercial 00C to +700C M = Military Equivalent Screened (-550C to +1250C) I = Industrial Temperature Tested (-450C to +850C) X = Burned In Speed (first two significant digits) DRAMS SRAMS 50 = 50 nS 8= 8 nS 60 = 60 nS 10 = 10 nS 70 = 70 nS 12 = 12 nS 80 = 80 nS 15 = 15 nS 1 2 3 4 5 6 7 8 MECHANICAL DIMENSIONS Inches Top View ZIP 1 2 3 4 5 6 3 59 60 61 62 64 63 0.670 MAX 0.405 0.395 4 .100 x .100 ANGLE NOTCH 0.125 0.155 5 0.250 0.550 MAX C L 0.050 TYP C L + 6 0.250 TYP CC LL CC LL 0.050 TYP 7 0.050 TYP 3.855 3.845 4.255 4.245 8 0.125 TYP The numbers and coding on this page do not include all variations available but are show as examples of the most widely used variations. Contact Accutek if other information is required. + 0.100 TYP EXAMPLES: AK6321024W-15 1 Meg x 32, 15 nSEC SRAM Module, SIM Configuration AK6321024Z-17 1 Meg x 32, 17 nSEC SRAM Module, ZIP Configuration ACCUTEK MICROCIRCUIT CORPORATION BUSINESS CENTER at NEWBURYPORT 2 NEW PASTURE ROAD, SUITE 1 NEWBURYPORT, MA 01950-4054 VOICE: 978-465-6200 FAX: 978-462-3396 Email: sales@accutekmicro.com Internet: www.accutekmicro.com Accutek reserves the right to make changes in specifications at any time and without notice. Accutek does not assume any responsibility for the use of any circuitry described; no circuit patent licenses are implied. Preliminary data sheets contain minimum and maximum limits based upon design objectives, which are subject to change upon full characterization over the specific operating conditions. CC LL 0.350 MAX 0.350 MAX |
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