m69ar024b STMicroelectronics, m69ar024b Datasheet - Page 21

• Manufacturer Part Number: m69ar024b
• Description: 16 Mbit 1m X16 1.8v Supply, Asynchronous Psram
• Manufacturer: STMicroelectronics

Figure 16. Chip Enable Controlled, Read and Write Mode AC Waveforms
Note: Write address is valid from last falling edge of either E1 or W.
Figure 17. E, W, G Controlled, Read and Write Mode AC Waveforms
Note: G can be fixed Low during the write part of a read-write-read operation that is under E1 control.
DQ0-DQ15
DQ0-DQ15
A0-A19
A0-A19
UB, LB
UB, LB
E1
W
E1
G
W
G
tEHQX
tEHAX
tEHQZ
READ DATA
tEHQZ
tEHQX
READ DATA
tEHAX
OUTPUT
OUTPUT
tGHEL
tEHEL
tEHEL
tGHEL
tAVEL
tAVEL
WRITE ADDRESS
WRITE ADDRESS
tDVWH
tDVEH
tELEH
tWLWH
tELAX
tELAX
tWHAX
WRITE DATA
WRITE DATA
tEHAX
INPUT
INPUT
tEHEL
tEHEL
tWHDZ
tEHDZ
tGLQV
tGLQX
tAVEL
(read)
tAVEL
(read)
tELQV
tELQV
READ ADDRESS
READ ADDRESS
tELQX
tELAX(read)
tELAX(read)
tGHQX
tEHAX(read)
tEHAX(read)
READ DATA
tEHQX
OUTPUT
ai09390
M69AR024B
ai09391
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