IDT7134SA/LA
HIGH-SPEED 4K x 8 DUAL-PORT STATIC RAM
MILITARY AND COMMERCIAL TEMPERATURE RANGES
AC ELECTRICAL CHARACTERISTICS OVER THE
OPERATING TEMPERATURE AND SUPPLY VOLTAGE
(4)
7134X20
(3)
Symbol
READ CYCLE
t
RC
t
AA
t
ACE
t
AOE
t
OH
t
LZ
t
HZ
t
PU
t
PD
Read Cycle Time
Address Access Time
Chip Enable Access Time
Output Enable Access Time
Output Hold from Address Change
Output Low-Z Time
(1, 2)
Output High-Z Time
(1, 2)
Chip Enable to Power Up Time
(2)
Chip Disable to Power Down Time
(2)
20
—
—
—
0
0
—
0
—
—
20
20
15
—
—
15
—
20
25
—
—
—
0
0
—
0
—
—
25
25
15
—
—
15
—
25
35
—
—
—
0
0
—
0
—
—
35
35
20
—
—
20
—
35
ns
ns
ns
ns
ns
ns
ns
ns
ns
Parameter
Min.
Max.
7134X25
Min.
Max.
7134X35
Min.
Max.
Unit
AC ELECTRICAL CHARACTERISTICS OVER THE
OPERATING TEMPERATURE AND SUPPLY VOLTAGE
(4)
(CONT'D)
7134X45
Symbol
READ CYCLE
t
RC
t
AA
t
ACE
t
AOE
t
OH
t
LZ
t
HZ
t
PU
t
PD
Read Cycle Time
Address Access Time
Chip Enable Access Time
Output Enable Access Time
Output Hold from Address Change
Output Low-Z Time
(1, 2)
Output High-Z Time
(1, 2)
Chip Enable to Power Up Time
(2)
Chip Disable to Power Down Time
(2)
45
—
—
—
0
5
—
0
—
—
45
45
25
—
—
20
—
45
55
—
—
—
0
5
—
0
—
—
55
55
30
—
—
25
—
50
70
—
—
—
0
5
—
0
—
—
70
70
40
—
—
30
—
50
ns
ns
ns
ns
ns
ns
ns
ns
ns
2720 tbl 09
7134X55
Min.
Max.
7134X70
Min.
Max.
Unit
Parameter
Min.
Max.
NOTES:
1. Transition is measured
±500mV
from Low or High-impedance voltage with the Output Test Load (Figure 2).
2. This parameter is guaranteed by device characterization, but is not production tested.
3. (Commercial only) 0°C to +70°C temperature range only.
4. “X” in part number indicates power rating (SA or LA).
TIMING WAVEFORM OF READ CYCLE NO. 1, EITHER SIDE
(1, 2, 3)
t
RC
ADDRESS
t
AA
t
OH
DATA
OUT
PREVIOUS DATA VALID
t
OH
DATA VALID
2720 drw 08
NOTES:
1. Timing depends on which signal is asserted last,
OE
or
CE
.
2. Timing depends on which signal is de-asserted first,
OE
or
CE
.
3. R/
W
= V
IH
.
6.04
5
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
