RENESAS LSIs
M5M5256DFP,VP-55LL,-70LL,-70LLI,
-55XL,-70XL
262144-BIT (32768-WORD BY 8-BIT) CMOS STATIC RAM
AC ELECTRICAL CHARACTERISTICS
( Vcc=5V±10%, unless otherwise noted )
(1) READ CYCLE
Symbol
t
CR
t
a
(A)
t
a
(S)
t
a
(OE)
t
dis
(S)
t
dis
(OE)
t
en
(S)
t
en
(OE)
t
V
(A)
Parameter
Read cycle time
Address access time
Chip select access time
Output enable access time
Output disable time after /S high
Output disable time after /OE high
Output enable time after /S low
Output enable time after /OE low
Data valid time after address
Limits
-70LL,-70LLI,
-55LL, 55XL
-70 XL
Min
Max
Max
Min
70
55
70
55
55
70
35
30
25
20
25
20
5
5
5
5
10
10
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
(2) WRITE CYCLE
Symbol
t
CW
t
w
(W)
t
su
(A)
t
su
(A-WH)
t
su
(S)
t
su
(D)
t
h
(D)
t
rec
(W)
t
dis
(W)
t
dis
(OE)
t
en
(W)
t
en
(OE)
Parameter
Write cycle time
Write pulse width
Address setup time
Address setup time with respect to /W high
Chip select setup time
Data setup time
Data hold time
Write recovery time
Output disable time from /W low
Output disable time from /OE high
Output enable time from /W high
Output enable time from /OE low
Limits
-70LL,-70LLI,
-55LL, -55XL
-70 XL
Min
Max
Min
Max
55
70
40
50
0
0
50
65
50
65
25
30
0
0
0
0
25
20
25
20
5
5
5
5
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
4
RENESAS [ RENESAS TECHNOLOGY CORP ]
