M69AW024B データシートの表示（PDF） - STMicroelectronics

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M69AW024B

16 Mbit (1M x16) 3V Asynchronous PSRAM

STMicroelectronics 

M69AW024B

Figure 13. W Controlled, Continuous Write AC Waveforms

A0-A19

ADDRESS VALID

tGHAX

ADDRESS VALID

tAVWL

tWLAX

tWLWL

ADDRESS VALID

tAVWL

E1

tGHEL

W

tELWL

tWLWH

tWHWL

UB, LB

tGHBH

tBLWL

tWHBH

tBLWL

G

DQ0-DQ15

tGHWL

tGHQZ

tDVWH

VALID DATA INPUT

tWHDX

AI07413C

Note: 1. E2 must be High during the Write cycle.

Figure 14. E1 Controlled, Read/Write AC Waveforms

A0-A19

ADDRESS VALID

tEHAX

ADDRESS VALID

tAVEL

tELAX

tELEL

tAVEL

ADDRESS VALID

E1

tEHEL1

tELEH1

tEHEL1

tEHWH

tWHEL

tEHWL

tWLEL

ELGL

W

UB, LB

tEHBH

tBLEL

tEHBH

tBLGL

G

DQ0-DQ15

tEHQZ

tEHQX

READ DATA OUTPUT

tGHEL

tDVEH

tEHDX

WRITE DATA INPUT

tGLQX

Note: 1. Write address is valid from the falling edge of either E1 or W, whichever occurs later.

AI07414C

20/29

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