M69AR048B Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Fabricante

M69AR048B

32 Mbit (2Mb x16) 1.8V Asynchronous PSRAM

STMicroelectronics 

M69AR048B

Figure 10. UB/LB Controlled, Read Mode AC Waveforms

tAXAV

A0-A20

tAVQV

E1 Low

tBLQV

LB

UB

tAVAX

ADDRESS VALID

tBHQZ

tBLQV

tBLQV

tAXAV

tBHQZ

DQ0-DQ7

tBLQX

DQ8-DQ15

tBHQX

VALID DATA OUT

tBLQX

tBLQX

tBHQX

VALID DATA OUT

tBHQZ

tBHQX

VALID DATA OUTPUT

Note: E2 = High, G = Low, W = High.

Figure 11. Page Address and Chip Enable Controlled, Read Mode AC Waveforms

tELEH

A20-A3

ADDRESS VALID

A2-A0

tAXAV2

ADDRESS VALID

tAVEL

tELAX

E

tAVAX2

tAXAV2

ADDRESS

VALID

tAVQV2

tAVAX2

tAXAV2

ADDRESS

VALID

tAVQV2

tAVEH2

ADDRESS VALID

tAVQV2

tEHAX

tELQV

G

tEHQZ

ai09399

LB, UB

DQ0-DQ15

tELQX

tAXQX

VALID DATA OUTPUT

(Normal Access)

Note: Write Enable (W) = High, E2 = High.

tAXQX

tAXQX

VALID DATA OUTPUT

(Page Access)

tEHQX

AI09800

16/29

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