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MSM514252A OKI electronic componets DRAM / FAST PAGE MODE TYPE Datasheet


OKI electronic componets
MSM514252A
Part Number MSM514252A
Manufacturer OKI electronic componets
Description The MSM514252A is an 1-Mbit CMOS multiport DRAM composed of a 262,144-word by 4-bit dynamic RAM, and a 512-word by 4-bit static serial access memory, SAM port. The RAM port and SAM port operate independently and asynchronously. The MSM514252A supports three types of operations: random access to and ...
Features
• Single power supply of 5 V ± 10% with a built-in VBB generator
• All inputs and outputs: TTL compatible
• Multiport organization RAM port: 256K word ¥ 4 bits SAM port: 512 word ¥ 4 bits
• RAM port Fast page mode, Read-modify-write CAS before RAS refresh, Hidden refresh RAS only refresh, Standard write-per-bit
• SAM port High speed serial Read/Write capability Fully static register 512 tap location
• RAM-SAM bidirectional, Read/Write/Pseudo write, Real time read transfer
• Package options: 28-pin 400 mil plastic ZIP (ZIP28-P-400-1.27) (Product : MSM514252A-xxZS) 28-pin 400 mil plastic SOJ (SO...

Document Datasheet MSM514252A datasheet pdf (358.04KB)




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The MSM514256C/CL is a 262,144-word ¥ 4-bit dynamic RAM fabricated in Oki's silicon-gate CMOS technology. The MSM514256C/CL achieves high integration, high-speed operation, and low-power consumption because Oki manufactures the device in a quadruple-layer polysilicon/single-layer metal CMOS process. The MSM514256C/CL is available in a 20-pin plastic DIP, 26/20-pin plastic SOJ, or 20-pin plastic ZIP. The MSM514256CL (the low-power version) is specially designed for lower-power applications. FEATURES • 262,144-word ¥ 4-bit configuration • Single 5 V power supply, ± 10% tolerance • Input : TTL compatible, low input capacitance • Output : TTL compatible, 3-state • Refresh : 512 cycles/8 ms, 512...
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