Accutek Microcircuit Corporation AK632512AW - 64 Pin Version 524,288 x 32 Bit CMOS / BiCMOS Static Random Access Memory DESCRIPTION Front View The Accutek AK632512AW SRAM Module consists of fast high performance SRAMs mounted on a low height, 64 pin SIM Board. The module utilizes four 36 pin 512K x 8 SRAMs in 400 mil SOJ packages and four decoupling capacitors mounted two on the front side and two on the back side of a printed circuit board. 1 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 15 nSEC to 35 nSEC in CMOS or BiCMOS technology. The Accutek module is designed to have a maximum seated height of 0.640 inch SIM to provide for the lowest height off the board. The module conforms to JEDEC-standard size. The Presence Detect feature has been disabled on this 64 pin module. The customer must jumper his board to provide density identification. The available 72 pin module has the Presence Detect feature operational. FEATURES · 524,288 x 32 bit organization · Similar to JEDEC standard 64 pin SIM format except that A18 replaces PD1 on Pin #3 · Common I/O, single OE and WE functions with four separate chip selects (CE) · Fast access times from 15 nSEC · Low height, 0.640 inch SIM maximum · Power: 720mA Max Active (20 nSEC) 760mA Max Active (15 nSEC) 800mA Max Active (12 nSEC) 200mA Max Standby Back View 64 33 SYMBOL PIN # 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 several SRAM manufacturers. SYMBOL PIN # FUNCTIONAL DIAGRAM SYMBOL PIN # SYMBOL Address Inputs 1 Vss 17 A2 33 CE4 49 A4 CE1 - CE4 Chip Enable 2 PD0 18 A9 34 CE3 50 A11 DQ1 - DQ32 Data In/Data Out 3 A18 19 DQ13 35 A17 51 A5 4 DQ1 20 DQ5 36 A16 52 A12 A0 - A18 + 19 A0 - A18 WE + * WE OE + * OE DQ1 - DQ8 + DQ1 - DQ8 CE OE Output Enable 5 DQ9 21 DQ14 37 OE 53 Vcc PD0 Presence Detect 6 DQ2 22 DQ6 38 Vss 54 A13 Vcc 5v Supply 7 DQ10 23 DQ15 39 DQ25 55 A6 8 DQ3 24 DQ7 40 DQ17 56 D21 9 DQ11 25 DQ16 41 DQ26 57 DQ29 CE1 + A0 - A18 * WE DQ1 - DQ8 + DQ9 - DQ16 * OE CE * Ground 1 ELECTRICAL SPECIFICATIONS A0 - A18 Vss 32 · Presence Detect, PD0 is open for identifying module density · Downward compatible with 256K x 32 (AK632256), 128K x 32 (AK632128), 64K x 32 (AK63264) and 32K x 32 (AK63232), 64 pin SIM or ZIP designs · Upward compatible with 1 Meg x 32 (AK6321024) · TTL-compatible inputs and outputs · Single 5 volt power supply - AK632512AW · Single 3.3 volt power supply - AK632512AW/3.3 · Operating free air temperature 00 to 700C PIN ASSIGNMENT PIN # 64 * PIN NOMENCLATURE 33 32 MODULE OPTIONS Leadless SIM: AK632512AW 10 DQ4 26 DQ8 42 DQ18 58 DQ22 11 DQ12 27 Vss 43 DQ27 59 DQ30 A0 - A18 12 Vcc 28 WE 44 DQ19 60 DQ23 * WE 13 A0 29 A15 45 DQ28 61 DQ31 * OE 14 A7 30 A14 46 DQ20 62 DQ24 15 A1 31 CE2 47 A3 63 DQ32 16 A8 32 CE1 48 A10 64 Vss DQ1 - DQ8 + DQ17 - DQ24 CE * Write Enable CE3 + A0 - A168 * WE PD0 = Open DQ1 - DQ8 * OE CE * WE CE2 + CE4 + + DQ25 - DQ32 MECHANICAL DIMENSIONS ORDERING INFORMATION Inches PART NUMBER CODING INTERPRETATION Position 1 2 3 4 5 6 7 8 0.405 0.395 0.250 C L 0.080 TYP CLCL 0.050 TYP 3.845 3.855 0.130 0.120 Product AK = Accutek Memory 2 Type 4 = Dynamic RAM 5 = CMOS Dynamic RAM 6 = Static RAM 3 Organization/Word Width 1 = by 1 16 = by 16 4 = by 4 32 = by 32 8 = by 8 36 = by 36 9 = by 9 4 Size/Bits Depth 64 = 64K 4096 = 4 MEG 256 = 256K 8192 = 8 MEG 1024 = 1 MEG 16384 = 16 MEG 5 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) 6 Special Designation P = Page Mode N = Nibble Mode K = Static Column Mode W = Write Per Bit Mode V = Video Ram 7 Separator - = Commercial 00C to +700C M = Military Equivalent Screened (-550C to +1250C) I = Industrial Temperature Tested (-450C to +850C) X = Burned In 8 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 The numbers and coding on this page do not include all variations available but are shown as examples of the most widely used variations. Contact Accutek if other information is required. 0.640 MAX 1 EXAMPLES: AK632512AW-15 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: [email protected] Internet: www.accutekmicro.com 0.300 MAX 512K x 32, 15 nSEC SRAM Module, SIM Configuration, 64 Pin 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.