HM628128 HITACHI [Hitachi Semiconductor], HM628128 Datasheet - Page 7

• Manufacturer Part Number: HM628128
• Description: 1 M SRAM (128-kword x 8-bit)
• Manufacturer: HITACHI [Hitachi Semiconductor]

AC Characteristics (Ta = –20 to +70 C, V
Test Conditions
Read Cycle
Parameter
Read cycle time
Address access time
Chip select access time
Output enable to output valid
Output hold from address change
Chip selection to output in low-Z
Output enable to output in low-Z
Chip deselection to output in high-Z t
Output disable to output in high-Z
Input pulse levels: V
Input rise and fall time: 5 ns
Input timing reference levels: 1.5 V
Output timing reference level: 1.5 V
Output load: 1 TTL Gate+ CL (100 pF) (HM628128D-7)
1 TTL Gate+ CL (50 pF) (HM628128D-5)
(Including scope and jig)
IL
= 0.8 V, V
IH
Symbol
t
t
t
t
t
t
t
t
t
t
t
RC
AA
ACS1
ACS2
OE
OH
CLZ1
CLZ2
OLZ
CHZ1
CHZ2
OHZ
= 2.4 V
HM628128D
-5
Min
55
—
—
—
—
10
10
10
5
0
0
0
CC
= 5.0 V 10%, unless otherwise noted.)
Max
—
55
55
55
30
—
—
—
—
20
20
20
-7
Min
70
—
—
—
—
10
10
10
5
0
0
0
HM628128D Series
Max
—
70
70
70
35
—
—
—
—
25
25
25
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Notes
2, 3
2, 3
2, 3
1, 2, 3
1, 2, 3
1, 2, 3
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