HM628512C Series
AC Characteristics (Ta = –20 to +70°C, VCC = 5 V ± 10%, unless otherwise noted.)
Test Conditions
•
•
•
•
Input pulse levels: 0.8 V to 2.4 V
Input rise and fall time: 5 ns
Input and output timing reference levels: 1.5 V
Output load: 1 TTL Gate + CL (100 pF) (HM628512C-7)
1 TTL Gate + CL (50 pF) (HM628512C-5)
(Including scope & jig)
Read Cycle
HM628512C
-5
-7
Min
70
—
—
—
10
5
Parameter
Symbol
tRC
Min
55
—
—
—
10
5
Max
—
Max
—
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
Notes
Read cycle time
Address access time
tAA
55
55
25
—
70
70
35
—
Chip select access time
tCO
Output enable to output valid
Chip selection to output in low-Z
Output enable to output in low-Z
Chip deselection to output in high-Z
Output disable to output in high-Z
Output hold from address change
tOE
tLZ
2
tOLZ
tHZ
tOHZ
tOH
—
—
2
0
20
20
—
0
25
25
—
1, 2
1, 2
0
0
10
10
7
RENESAS [ RENESAS TECHNOLOGY CORP ]
