IS62LV256-70UI ISSI, Integrated Silicon Solution Inc, IS62LV256-70UI Datasheet - Page 5

• Manufacturer Part Number: IS62LV256-70UI
• Description: IC SRAM 256KBIT 70NS 28SOP
• Manufacturer: ISSI, Integrated Silicon Solution Inc

Specifications of IS62LV256-70UI

• Format - Memory: RAM
• Memory Type: SRAM - Asynchronous
• Memory Size: 256K (32K x 8)
• Speed: 70ns
• Interface: Parallel
• Voltage - Supply: 3.135 V ~ 3.465 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

IS62LV256
AC TEST CONDITIONS
READ CYCLE SWITCHING CHARACTERISTICS
Notes:
1. Test conditions assume signal transition times of 5 ns or less, timing reference levels of 1.5V, input pulse levels of 0 to 3.0V and
2. Tested with the load in Figure 1b. Transition is measured ±500 mV from steady-state voltage. Not 100% tested.
3. Not 100% tested.
Integrated Silicon Solution, Inc. — www.issi.com —
Rev. K
12/11/02
Figures 1a
Parameter
Input Pulse Level
Input Rise and Fall Times
Input and Output Timing
and Reference Levels
Output Load
Symbol
output loading specified in Figure 1a.
t
t
t
t
t
t
t
t
t
t
t
RC
OHA
DOE
LZOE
HZOE
LZCE
HZCE
AA
ACE
PU
PD
(3)
(3)
(2)
(2)
(2)
(2)
OUTPUT
3.3V
Parameter
Read Cycle Time
Address Access Time
Output Hold Time
CE Access Time
OE Access Time
OE to Low-Z Output
OE to High-Z Output
CE to Low-Z Output
CE to High-Z Output
CE to Power-Up
CE to Power-Down
Including
100 pF
jig and
scope
1213
1378
See Figures 1a and 1b
0V to 3.0V
1.5V
Unit
5 ns
Min.
45
—
—
—
—
2
0
0
3
0
0
1-800-379-4774
-45 ns
(1)
Figures 1b
(Over Operating Range)
Max.
45
45
25
20
20
30
—
—
—
—
—
OUTPUT
3.3V
Min.
70
—
—
—
—
2
0
0
3
0
0
Including
-70 ns
jig and
scope
5 pF
1213
Max.
70
70
35
25
25
50
—
—
—
—
—
ISSI
1378
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
®
5