Details, datasheet, quote on part number: AK632256W-72
PartAK632256W-72
Category
Description256K X 32, 72 Pin Sim Module, Available With Solder or Gold Leads
CompanyAccutek Microcircuit Corporation
DatasheetDownload AK632256W-72 datasheet
  

 

Features, Applications
DESCRIPTION
x 32 Bit CMOS/BiCMOS 72 Pin Format Static Random Access Memory

The Accutek AK632256W-72 SRAM Module consists of fast high performance SRAMs mounted on a low profile, 72 pin SIM Board. The module utilizes four 28 pin x 4 SRAMs in 400 mil SOJ packages and four decoupling capacitors mounted on each side of a printed circuit board. 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 to have a maximum seated height of 0.680 inch to provide for the lowest height off the board. By offset-mounting the back surface SRAMs the module can be mounted in either angled or straight-up SIM sockets. The module conforms to JEDEC standard sizes and pin-out configurations. Using four pins for module memory density identification, to PD3, minimizes interchangeability and design considerations when changing from one module size to another in customer applications.

FEATURES

x 32 bit organization JEDEC Standardized 72 pin SIM or ZIP pinout Common I/O, single OE functions with four separate chip selects (CE) Low height, 0.680 inch maximum Upward compatible with 32 (AK632512) and 1 Meg 32 (AK6321024)

Downward compatible with 32 (AK63264) and 32 AK632128 Presence Detect to PD3 for identifying module density Fast access times range from 12 nSEC BiCMOS to 45 nSEC CMOS TTL-compatible inputs and outputs Single +5 Volt (±10%) power supply Operating temperature range in free air, to 700C

Timing diagrams and basic electrical characteristics are those of the standard x 4 SRAMs used to construct these modules. Accutek's module design allows the flexibility of selecting industry-compatible x 4 SRAMs from several semiconductor manufacturers.

- PD3 Vcc Vss WE NC Address Inputs Chip Enable Data In/Data Out Output Enable Presence Detect 5v Supply Ground Write Enable No Connect

Product AK = Accutek Memory 2 Type 4 = Dynamic RAM 5 = CMOS Dynamic RAM 6 = Static RAM 3 Organization/Word Width 9 4 Size/Bits Depth = 4 MEG = 8 MEG = 1 MEG = 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 M = Military Equivalent Screened I = Industrial Temperature Tested X = Burned In 8 Speed (first two significant digits) DRAMS SRAMS 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.

32, 12 nSEC SRAM Module, 72 Pin SIM 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: accutek@seacoast.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.


 

Some Part number from the same manufacture Accutek Microcircuit Corporation
AK632256Z 256K X 32, 64 Pin Sim Module, Available With Solder or Gold Leads
AK63232W 32K X 32, 64 Pin Sim Module
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AK632512W 512K X 32, 72 Pin Sim Module
AK63264AW 64K X 32, 64 Pin Sim Module, Available With Solder or Gold Leads
AK63264BZ 64K X 32, 64 Pin Zip Module
AK63264W 64K X 32, 64 Pin Sim Module, Available With Solder or Gold Leads
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