HM5212325FBP-B60 데이터 시트보기 (PDF) - Hitachi -> Renesas Electronics

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HM5212325FBP-B60

128M LVTTL interface SDRAM 100 MHz 1-Mword ×32-bit ×4-bank PC/100 SDRAM

Hitachi -> Renesas Electronics 

Block Diagram

14

A0 to A13

CS

RAS

CAS

WE

CLK

CKE

HM5212325FBPC-B60

64-Mbit SDRAM

4M × 16

64-Mbit SDRAM

4M × 16

4

DQMB 0 to

DQMB 3 32

DQ 0 to DQ 31

2

16

Power-up Sequence and Initialization Sequence

2

16

Power up sequence

100 µs

VCC 0 V

CKE, DQMB Low

CLK Low

CS, DQ Low

Power stabilize

Initialization sequence

200 µs

5

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