UPD431000A-xxx NEC, UPD431000A-xxx Datasheet - Page 14

• Manufacturer Part Number: UPD431000A-xxx
• Description: 1M-BIT CMOS STATIC RAM 128K-WORD BY 8-BIT
• Manufacturer: NEC

Write Cycle (1/2)
Note See the output load.
Remark These AC characteristics are in common regardless package types.
Write Cycle (2/2)
Note See the output load.
Remark These AC characteristics are in common regardless of package types.
14
Write cycle time
/CE1 to end of write
CE2 to end of write
Address valid to end of write
Address setup time
Write pulse width
Write recovery time
Data valid to end of write
Data hold time
/WE to output in high impedance
Output active from end of write
Write cycle time
/CE1 to end of write
CE2 to end of write
Address valid to end of write
Address setup time
Write pulse width
Write recovery time
Data valid to end of write
Data hold time
/WE to output in high impedance
Output active from end of write
Parameter
Parameter
`
Symbol
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
CW1
CW2
t
t
WHZ
CW1
CW2
t
t
WHZ
WC
AW
WP
WR
DW
OW
WC
AW
WP
WR
DW
OW
DH
DH
AS
AS
MIN.
MIN.
PD431000A-Axx
PD431000A-Bxx
PD431000A-B10
100
PD431000A-70
70
55
55
55
50
35
80
80
80
60
60
0
5
0
5
0
0
0
5
Data Sheet M11657EJBV0DS
MAX.
MAX.
25
35
V
CC
4.5 V
MIN.
PD431000A-B12
MIN.
120
100
100
100
PD431000A-85
85
70
70
70
60
35
85
60
0
5
0
5
0
0
0
5
V
CC
2.7 V
MAX.
MAX.
30
40
MIN.
MIN.
PD431000A-A10
PD431000A-B15
100
150
120
120
120
100
80
80
80
60
60
80
0
0
0
5
0
0
0
5
V
CC
3.0 V
MAX.
MAX.
35
50
PD431000A
Unit
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Condition
Condition
Note
Note