HM62V256 데이터 시트보기 (PDF) - Hitachi -> Renesas Electronics

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HM62V256

32,768-word × 8-bit Low Voltage Operation CMOS Static RAM

Hitachi -> Renesas Electronics 

Write Timing Waveform (2) (OE Low Fixed)

HM62V256 Series

Address

CS

WE

Dout

Din

t WC

Valid address

t CW

t WR

*1

t AW

tWP

tAS

tWHZ

High impedance

t OH

t OW

*2

*3

t DW tDH

*4

Valid data

Notes: 1. If CS goes low simultaneously with WE going low or after WE going low,

the outputs remain in the high impedance state.

2. Dout is the same phase of the write data of this write cycle.

3. Dout is the read data of next address.

4. If CS is low during this period, I/O pins are in the output state. Therefore, the input

signals of theopposite phase to the output must not be applied to them.

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