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| Accutek Microcircuit Corporation DESCRIPTION The Accutek AK63232W SRAM Module consists of fast high performance SRAMs mounted on a low profile, 64 pin SIM Board. The module utilizes four 28 pin 32K x 8 SRAMs in SOJ packages and four decoupling capacitor chips on one side of the circuit board. Pin 1 AK63232W 32,768 x 32 Bit CMOS/BiCMOS Static Random Access Memory Pin 1 Pin 1 Pin 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 12 nSEC to 45 nSEC in CMOS or BiCMOS technology. The Accutek module is designed for the lowest height off the board, consistent with the availability of commonly available SRAM SOJ package configurations. Each conforms to JEDEC - standard sizes and pin-out configurations. This, along with use of two pins for module memory density identification, PD0 and PD1, minimizes interchangeability and design considerations when changing from one module size to the other in customer applications. 1 FEATURES * 32,768 x 32 bit organization * JEDEC Standardized 64 pin SIM format * Common I/O, single OE functions with four separate chip selects (CE) * Low height, 0.600 inch maximum, for mounting in straight-up or angled SIM sockets * Upward compatible with 64k x 32, AK63264W, 256K x 32, AK6322W and 1 meg x 32, AK6321024W designs * Presence Detect, PD0 and PD1 for identifying module density * Fast Access Times range from 12 nSEC BiCMOS to 45 nSEC CMOS * TTL compatible inputs and outputs * Single 5 volt power supply - AK63232W * Single 3.3 volt power supply - AK63232W/3.3 * Operating temperature range in free air, 00C to 700C PIN NOMENCLATURE A0 - A14 CE1 - CE4 DQ1 - DQ32 OE PD0 - PD1 Vcc Vss WE Address Inputs Chip Enable Data In/Data Out Output Enable Presence Detect Power Supply Ground Write Enable PIN ASSIGNMENT PIN # SYMBOL PIN # SYMBOL PIN # SYMBOL PIN # SYMBOL FUNCTIONAL DIAGRAM A0 - A14 1 2 3 4 5 6 7 8 9 10 11 Vss PD0 PD1 DQ1 DQ9 DQ2 DQ10 DQ3 DQ11 DQ4 DQ12 Vcc A0 A7 A1 A8 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 A2 A9 DQ13 DQ5 DQ14 DQ6 DQ15 DQ7 DQ16 DQ8 Vss WE NC A14 CE2 CE1 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 CE4 CE3 NC NC OE Vss DQ25 DQ17 DQ26 DQ18 DQ27 DQ19 DQ28 DQ20 A3 A10 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 A4 A11 A5 A12 Vcc A13 A6 DQ21 DQ29 DQ22 DQ30 DQ23 DQ31 DQ24 DQ32 Vss 15 AOA14 OE WE OE WE DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ8 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ8 CE CE1 AODQ1 A14 OE WE DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 DQ16 CE CE2 AODQ1 A14 MODULE OPTIONS Leadless SIM: AK63232W Leaded SIP: AK63232G 12 13 14 15 16 OE WE DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ8 DQ17 DQ18 DQ19 DQ20 DQ21 DQ22 DQ23 DQ24 CE CE3 AO- DQ1 A14 PD0 = Open PD1 = Open CE4 OE WE DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ8 DQ25 DQ26 DQ27 DQ28 DQ29 DQ30 DQ31 DQ32 CE ORDERING INFORMATION PART NUMBER CODING INTERPRETATION Position 1 Product AK = Accutek Memory 2 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 256 = 256K 1024 = 1 MEG Package Type 4096 = 8192 = 16384 = 4 MEG 8 MEG 16 MEG 12345678 MECHANICAL DIMENSIONS Inches 0.600 MAX 0.245 0.255 3 0.075 0.085 1 4 Pin 1 0.050 TYP 5 CC LL 6 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 15 = 15 nS 80 = 80 nS 20 = 20 nS R = 0.062 TYP CC LL 0.125 TYP Pin 1 3.585 Pin 1 3.840 3.860 7 Pin 1 8 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. 0.200 MAX 0.047 0.053 EXAMPLES: AK63232W-12 32K x 32, 12 nSEC SRAM SIM Module 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: 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. |
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