HM628512CI Series
AC Characteristics (Ta = –40 to +85°C, VCC = 5 V ± 10%, unless otherwise noted.)
Test Conditions
• Input pulse levels: 0.4 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) (Including scope and jig)
Read Cycle
Parameter
Read cycle time
Address access time
Chip select access time
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
Symbol
t RC
t AA
t CO
t OE
t LZ
t OLZ
t HZ
t OHZ
t OH
HM628512CI
-7
Min
Max
Unit
Notes
70
—
ns
—
70
ns
—
70
ns
—
35
ns
10
—
ns
2
5
—
ns
2
0
25
ns
1, 2
0
25
ns
1, 2
10
—
ns
7