upd43256b Renesas Electronics Corporation., upd43256b Datasheet - Page 12

• Manufacturer Part Number: upd43256b
• Description: 256k-bit Cmos Static Ram 32k-word By 8-bit
• Manufacturer: Renesas Electronics Corporation.

Read Cycle (1/2)
Note
Remark These AC characteristics are in common regardless of package types and L, LL versions.
Read Cycle (2/2)
Note
Remark These AC characteristics are in common regardless of package types.
12
Read cycle time
Address access time
/CS access time
/OE access time
Output hold from address change
/CS to output in low impedance
/OE to output in low impedance
/CS to output in high impedance
/OE to output in high impedance
Read cycle time
Address access
time
/CS access time
/OE access time
Output hold from
address change
/CS to output in
low impedance
/OE to output in
low impedance
/CS to output in
high impedance
/OE to output in
high impedance
Parameter
See the output load.
See the output load.
Parameter
Symbol
t
t
t
t
t
t
t
t
t
ACS
CLZ
OLZ
CHZ
OHZ
RC
OE
OH
AA
μ
MIN. MAX. MIN. MAX. MIN. MAX. MIN. MAX. MIN. MAX. MIN. MAX.
85
10
10
PD43256B
5
-A85
Symbol
85
85
50
35
35
t
t
t
t
t
t
t
t
t
OHZ
ACS
CLZ
OLZ
CHZ
RC
OE
OH
AA
μ
V
100
10
10
PD43256B
5
CC
Data Sheet M10770EJEV0DS
-A10
≥ 3.0 V
100
100
MIN.
60
35
35
70
10
10
5
μ
PD43256B-70
μ
120
PD43256B
10
10
5
-A12
120
120
60
40
40
MAX.
70
70
35
30
30
V
μ
CC
100
10
10
PD43256B
5
≥ 4.5 V
-B10
μ
μ
100
100
PD43256B-A85/A10/A12
PD43256B-B10/B12/B15
60
35
35
MIN.
85
10
10
5
μ
PD43256B-85
μ
V
120
PD43256B
10
10
5
CC
-B12
≥ 2.7 V
120
120
60
40
40
MAX.
85
85
40
30
30
μ
150
10
10
PD43256B
5
μ
-B15
PD43256B
150
150
70
50
50
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
Unit Con-
ns
ns
ns
ns
ns
ns
ns
ns
ns
Condition
Note
dition
Note