M68Z128 データシートの表示（PDF） - STMicroelectronics

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M68Z128

5V, 1 Mbit (128Kb x8) Low Power SRAM with Output Enable

STMicroelectronics 

M68Z128

Figure 8. Write Enable Controlled, Write AC Waveforms

A0-A16

E1

E2

W

DQ0-DQ7

tAVE1L

tAVAV

VALID

tAVWH

tAVE2H

tAVWL

tWLWH

tWLQZ

tWHDX

DATA INPUT

tDVWH

Note: Output Enable (G) = Low.

Figure 9. Chip Enable Controlled, Write AC Waveforms (1, 2)

tWHAX

tWHQX

AI00807

A0-A16

E1

tAVE1L

tAVAV

VALID

tAVE1H

tE1LE1H

tE1HAX

E2

W

DQ0-DQ7

tAVE2H

tAVWL

tAVE2L

tE2HE2L

tE2LAX

tE1HDX

tE2LDX

DATA INPUT

tDVE1H

tDVE2L

AI00808

Note: 1. Output Enable (G) = High.

2. If E1 goes High or E2 goes Low simultaneously with W high, the output remains in a high-impedance state.

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