HM62W16256B View Datasheet(PDF) - Hitachi -> Renesas Electronics

Part Name

Description

MFG CO.

HM62W16256B

4 M SRAM (256-kword × 16-bit)

Hitachi -> Renesas Electronics 

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HM62W16256B Series

Low VCC Data Retention Timing Waveform (1) (CS1 Controlled)

VCC

3.0 V

t CDR

Data retention mode

VDR

2.0 V

CS1

0V

CS1 ≥ VCC – 0.2 V

Low VCC Data Retention Timing Waveform (2) (CS2 Controlled)

VCC

3.0 V

CS2

VDR

0.4 V

0V

tCDR

Data retention mode

0 V < CS2 < 0.2 V

Low VCC Data Retention Timing Waveform (3) (LB, UB Controlled)

VCC

3.0 V

t CDR

Data retention mode

VDR

2.0 V

LB, UB

0V

LB, UB ≥ VCC – 0.2 V

tR

tR

tR

14

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