AK68512D1C 524,288 x 8 Bit CMOS Static Random Access Memory ACCUTEK MICROCIRCUIT CORPORATION DESCRIPTION The Accutek AK68512D1C high density memory module is a static random access memory organized in 512K x 8 bit words. The assembly consists of one medium speed 512K x 8 SRAM in a TSOP Type 2 package. The module is supplied in a 600 mil wide, 32 pin DIP (Dual In-Line Package) configuration. This pinout is completely compatible with industry standard monolithic designs. These modules are intended for use in applications where limited board space dictates compact module designs. The operation of the AK68512D1C is identical to standard monolithic 8 bit word wide SRAMs. The AK68512D1C offers the features of low power and medium speed by using CMOS devices and makes high density mounting possible with no surface mount technology. FEATURES · 524,288 x 8 bit organization ELECTRICAL SPECIFICATIONS · Fast access time: 55 - 70 nSEC Timing diagrams and basic electrical characteristics are those of the standard 512K x 8 SRAMs used to construct these modules. Accutek’s module design allows the flexibility of selecting industry-compatible 512K x 8 SRAMs from any of a number of semiconductor manufacturers. · Completely static RAM, no clock or timing strobe required · Inputs and outputs TTL compatible · Conventional 600 mil wide SIP package with industry compatible pinout · Single 5 volt power supply - AK68512D1C · Single 3.3 volt power supply - AK68512D1C/3.3 · Operating free air temperature 00 to 700C PIN NOMENCLATURE A0 - A18 Adress Inputs CE Chip Enable WE Write Enable Vcc 5v Supply Vss Ground OE Output Enable TIMING OPTIONS 55 nSEC Access Time 70 nSEC Access Time A 18 A 16 A 14 A 12 A7 A6 A5 A4 A3 A2 A1 A0 DQ1 DQ2 DQ3 VSS 32 PIN SOIC Data In/Data Out 1 DQ1 - DQ8 PIN ASSIGNMENT T op View FUNCTIONAL DIAGRAM V CC A 15 A 17 WE A 13 A8 A9 A 11 OE A 10 CE DQ8 DQ7 DQ6 DQ5 DQ4 A18 A16 A14 A12 A7 A6 A5 A4 A3 A2 A1 A0 DQ1 DQ2 DQ3 Vss Vcc A15 A17 WE A13 A8 A9 A11 OE A10 CE DQ8 DQ7 DQ6 DQ5 DQ4 0.22uF CAPACITOR MECHANICAL DIMENSIONS ORDERING INFORMATION PART NUMBER CODING INTERPRETATION Position 1 2 3 4 5 6 Inches 7 8 1.600" 0.900" 0.600" 0.700" 0.130" 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 12 = 12 nS 70 = 70 nS 55 = 55 nS 80 = 80 nS 70 = 70 nS 0.125" 8 4 0.100" 7 3 32 PIN TYPE 2 TSOP 6 2 0.550" 0.245" 5 1 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. EXAMPLES: AK68512D1C-70 512K x 8, 70 nSEC SRAM Module, DIP Configuration ACCUTEK MICROCIRCUIT CORPORATION BUSINESS CENTER at NEWBURYPORT 2 NEW PASTURE ROAD, SUITE #1 NEWBURYPORT, MA 01950-4054 PHONE: 978-465-6200 FAX: 978-462-3396 Email: email@example.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.