M69AR048B データシートの表示（PDF） - STMicroelectronics

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M69AR048B

32 Mbit (2Mb x16) 1.8V Asynchronous PSRAM

STMicroelectronics 

M69AR048B

Figure 13. Chip Enable Controlled, Write AC Waveforms

A0-A20

tAVEL

E1

tAVWL

W

LB, UB

G

tAVBL

tGHEL

DQ0-DQ15

Note: E2 = High.

tELAX

ADDRESS VALID

tELEH

tEHAX

tWLWH

tWHAX

tBLBH

tBHAX

tAVEL

tAVWL

tAVBL

tDVEH

tDVWH

tDVBH

VALID DATA INPUT

tEHDZ

tWHDZ

tBHDZ

ai09802

Figure 14. Write Enable Controlled, Write AC Waveforms

A0-A20

E1

W

Low

tAVWL

tAVAX

ADDRESS VALID

tAXAV

tWHAX

tWLWH

tAVWL

tAVAX

ADDRESS VALID

tWHAX

tWLWH

LB, UB

G

DQ0-DQ15

Note: E2 = High.

tGHAV

tDVWH

tGHQZ

VALID DATA

INPUT

tWHDZ

tDVWH

VALID DATA

INPUT

tWHDZ

AI09803

19/29

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