MSM514223B 查看數據表（PDF） - Oki Electric Industry

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MSM514223B

262,263-Word x 4-Bit Field Memory

Oki Electric Industry 

¡ Semiconductor

BLOCK DIAGRAM

DOUT (¥ 4)

Data-Out

Buffer (¥ 4)

OE RE RSTR SRCK

Serial Read

Controller

512 Word Serial Read Register (¥ 4)

Read Line Buffer Read Line Buffer

Low-Half (¥ 4) High-Half (¥ 4)

120 Word

Sub-Register (¥ 4)

120 Word

Sub-Register (¥ 4)

256 (¥ 4)

256K (¥ 4)

Memory

Array

256 (¥ 4)

X

Decoder

256 (¥ 4)

256 (¥ 4)

Write Line Buffer Write Line Buffer

Low-Half (¥ 4) High-Half (¥ 4)

512 Word Serial Write Register (¥ 4)

Data-In

Buffer (¥ 4)

DIN (¥ 4)

Serial Write

Controller

IE WE RSTW SWCK

MSM514223B

Read/Write

and Refresh

Controller

Clock

Oscillator

VBB

Generator

4/14

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