DESCRIPTION Accutek Microcircuit Corporation AK6321024W / AK6321024Z 1,048,576 x 32 Bit CMOS/BiCMOS Static Random Access Memory Front View 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. 72-Pin SIM 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 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. 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 PIN NOMENCLATURE A0 - A19 Address Inputs CE1 - CE4 Chip Enable DQ1 - DQ32 Data In/Data Out 36 1 36 72 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 ASSIGNMENT FUNCTIONAL DIAGRAM PIN # SYMBOL PIN # SYMBOL PIN # SYMBOL PIN # SYMBOL 1 NC 19 A1 37 CE4 55 A5 2 NC 20 A8 38 CE3 56 A12 3 PD2 21 A2 39 A17 57 Vcc 4 PD3 22 A9 40 A16 58 A13 DQ13 41 OE 59 A6 5 Vss 23 PD0 - PD3 Presence Detect 6 PD0 24 DQ5 42 Vss 60 DQ21 Vcc 5v Supply 7 PD1 25 DQ14 43 DQ25 61 DQ29 Vss Ground 8 DQ1 26 DQ6 44 DQ17 62 DQ22 9 DQ9 27 DQ15 45 DQ26 63 DQ30 WE Write Enable 10 DQ2 28 DQ7 46 DQ18 64 DQ23 NC No Connect 11 DQ10 29 DQ16 47 DQ27 65 DQ31 12 DQ3 30 DQ8 48 DQ19 66 DQ24 13 DQ11 31 Vss 49 DQ28 67 DQ32 14 DQ4 32 WE 50 DQ20 68 Vss 15 DQ12 33 A15 51 A3 69 A18 16 Vcc 34 A14 52 A10 70 A19 Leades ZIP: AK6321024Z 17 A0 35 CE2 53 A4 71 NC Leaded SIP: AK6321024G 18 A7 36 CE1 54 A11 72 NC PD0 = Vss PD1 = Open 37 · 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 Output Enable Leadless SIM: AK6321024W 72 72-Pin ZIP OE MODULE OPTIONS 37 PD2 = Vss PD3 = Open MECHANICAL DIMENSIONS ORDERING INFORMATION PART NUMBER CODING INTERPRETATION Position 1 2 3 4 5 6 Inches 7 8 Top View ZIP 3 5 59 61 0.670 MAX 0.405 0.395 63 64 0.250 .100 x .100 ANGLE NOTCH 0.550 MAX + C L 0.250 TYP CLCL 0.050 TYP 3.855 3.845 4.255 4.245 0.125 TYP + CL CL 0.350 MAX 0.350 MAX AK6321024Z-17 62 1 Meg x 32, 15 nSEC SRAM Module, SIM Configuration 60 AK6321024W-15 0.100 TYP EXAMPLES: 0.050 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. CLCL 8 0.050 TYP 7 C L 6 0.125 0.155 5 6 4 4 3 2 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 1 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: [email protected] 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.