AK632256AW 262,144 CMOS/BiCMOS Static Random Access Memory Accute

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AK632256AW 262,144 CMOS/BiCMOS Static Random Access Memory Accute

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AK632256AW 262,144 CMOS/BiCMOS Static Random Access Memory
Accutek AK632256AW SRAM Module consists eight fast high performance SRAMs mounted profile, PCB. module utilizes four 256K SRAMs packages four decoupling capacitor chips mounted each side printed circuit board. SRAMs used have common functions single output enable functions. Also, four separate chip select (CE) connections used independently enable four bytes. modules supplied variety access time values from nSEC nSEC CMOS BiCMOS technology. Accutek module designed have maximum seated height 0.600 inch provide lowest height board. offset-mounting back surface SRAMs module mounted either angled straight-up sockets. modules conform JEDEC standard sizes pin-out configurations. Using pins module memory density identification, PD1, minimizes interchangeability design considerations when changing from module size another customer applications.
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64-Pin
FEATURES
262,144 organization JEDEC Standardized format Available with solder gold leads Presence Detect identifying module density Common I/O, single functions with four separate chip selects (CE) height, 0.600 inch maximum seated height
Downward compatible with 128K (AK632128), (AK63264) (AK63232) Upward compatible with 512K (AK632512) (AK6321024) Fast access times range from nSEC BiCMOS nSEC CMOS TTL-compatible inputs outputs Single volt power supply Operating temperature range free air, 700C
ELECTRICAL SPECIFICATIONS
Timing diagrams basic electrical characteristics those standard 256K SRAMs used construct these modules. Accutek's module design allows flexibility selecting industry-compatible 256K SRAMs from several semiconductor manufacturers.
NOMENCLATURE
DQ32 Address Inputs Chip Enable Data In/Data Output Enable Presence Detect Supply Ground Write Enable
ASSIGNMENT
SYMBOL SYMBOL SYMBOL SYMBOL
FUNCTIONAL DIAGRAM
DQ25 DQ17 DQ26 DQ18 DQ27 DQ19 DQ28 DQ20 DQ21 DQ29 DQ22 DQ30 DQ23 DQ31 DQ24 DQ32
DQ10 DQ11 DQ12
DQ13 DQ14 DQ15 DQ16
MODULE OPTIONS
Leadless SIM, Solder Leads: AK632256AW Leadless SIM, Gold Leads: AK632256AWG
Position
ORDERING INFORMATION PART NUMBER CODING INTERPRETATION
MECHANICAL DIMENSIONS
Inches
0.600
Product Accutek Memory Type Dynamic CMOS Dynamic Static Organization/Word Width Size/Bits Depth 4096 256K 8192 1024 16384 Package Type Single In-Line Package (SIP) Single In-Line Module (SIM) Dual In-Line Package (DIP) .050 inch Pitch Edge Connect Zig-Zag In-Line Package (ZIP) Special Designation Page Mode Nibble Mode Static Column Mode Write Mode Video Separator Commercial +700C Military Equivalent Screened (-550C +1250C) Industrial Temperature Tested (-450C +850C) Burned Speed (first significant digits) DRAMS SRAMS
0.425 0.375 3.855 3.845 0.135 0.165 0.050
numbers coding this page include variations available show examples most widely used variations. Contact Accutek other information required.
EXAMPLES:
AK632256AWG-12 256K nSEC SRAM Module, Configuration with Gold Leads AK632256AW-15 256K 15nSEC SRAM Module, Configuration with Solder Leads ACCUTEK MICROCIRCUIT CORPORATION BUSINESS CENTER NEWBURYPORT PASTURE ROAD, SUITE NEWBURYPORT, 01950-4054 VOICE: 978-465-6200 FAX: 978-462-3396 Email: accutek@seacoast.com Internet: www.accutekmicro.com
Accutek Reserves right make changes specifications time without notice. Accutek does assume responsibility circuitry described; circuit patent licenses implied. Preliminary data sheets contain minimum maximum limits based upon design objectives, which subject change upon full characterization over specific operating conditions.
0.350

AK632256AW 262,144 CMOS/BiCMOS Static Random Access Memory Accute

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