Accutek Microcircuit Corporation AK632128W / AK632128Z 131,072 x 32 Bit CMOS/BiCMOS Static Random Access Memory DESCRIPTION Top View 64-Pin SIMM The Accutek AK632128 SRAM Module consists of fast high performance 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 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 considerations when changing from one module size to the other in customer 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 PIN NOMENCLATURE 32 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 7nSEC to 35nSEC in CMOS or BiCMOS technology. 33 64 64-Pin ZIP 32 1 33 64 · Common I/O, single OE functions with four separate chip selects (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 00 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 industry-compatible 128K x 8 SRAMs from at least seven semiconductor manufacturers. PIN ASSIGNMENT FUNCTIONAL DIAGRAM PIN # SYMBOL PIN # SYMBOL PIN # SYMBOL PIN # SYMBOL 1 Vss 17 A2 33 CE4 49 A4 Chip Enable 2 PD0 18 A9 34 CE3 50 A11 WE + * WE DQ1 - DQ32 Data In/Data Out 3 PD1 19 DQ13 35 NC 51 A5 OE + * OE OE Output Enable 4 DQ1 20 DQ5 36 A16 52 A12 5 DQ9 21 DQ14 37 OE 53 Vcc A0 - A16 Address Inputs CE1 - CE4 A0 - A16 + 17 A0 - A16 DQ1 - DQ8 Vcc * Presence Detect 6 DQ2 22 DQ6 38 Vss 54 A13 Power Supply 7 DQ10 23 DQ15 39 DQ25 55 A6 8 DQ3 24 DQ7 40 DQ17 56 DQ21 A0 - A16 * WE DQ1 - DQ8 Vss Ground 9 DQ11 25 DQ16 41 DQ26 57 DQ29 WE Write Enable 10 DQ4 26 DQ8 42 DQ18 58 DQ22 NC No Connect 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 47 A3 63 DQ32 16 A8 32 CE1 48 A10 64 Vss MODULE OPTIONS CE CE1 + + DQ9 - DQ16 * OE CE * PD0 - PD1 + DQ1 - DQ8 CE2 + A0 - A16 * WE DQ1 - DQ8 + DQ17 - DQ24 * OE Leaded ZIP: AK632128Z A0 - A16 PD0 = Open PD1 = Open * WE DQ1 - DQ8 * OE CE * Leadless SIM: AK632128W * CE CE3 + CE4 + + DQ25 - DQ32 MECHANICAL DIMENSIONS ORDERING INFORMATION Inches PART NUMBER CODING INTERPRETATION Position 1 3 5 59 0.425 0.375 0.250 1 0.090 0.070 1 CLCL 0.050 TYP 3.840 3.860 CL CL 3.590 3.610 .130 .120 64 0.200 MAX 0.200 MAX .053 .047 CL CL 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 0.100 TYP AK632128Z-20 128K x 32, 20 nSEC SRAM Module, ZIP Configuration .100 x .100 ANGLE NOTCH 0.540 MAX 0.100 TYP AK632128W-15 128K x 32, 15 nSEC SRAM Module, SIM Configuration 0.620 MAX 63 64 CL CL 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. EXAMPLES 61 62 0.050 TYP 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 60 = 60 nS 8 = 8 nS 70 = 70 nS 10 = 10 nS 80 = 80 nS 12 = 12 nS 10 = 100 nS 15 = 15 nS Top View ZIP CLCL 8 8 0.125 0.135 7 7 C L 6 6 0.125 0.155 5 5 60 4 4 6 3 3 4 2 2 2 1 1 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.