IS62C256AL-45ULI INTEGRATED SILICON SOLUTION (ISSI), IS62C256AL-45ULI Datasheet - Page 5

• Manufacturer Part Number: IS62C256AL-45ULI
• Description: IC, SRAM, 256KBIT, 45NS, SOP-28
• Manufacturer: INTEGRATED SILICON SOLUTION (ISSI)

Specifications of IS62C256AL-45ULI

• Memory Size: 256Kbit
• Memory Configuration: 32K X 8
• Access Time: 45ns
• Supply Voltage Range: 4.5V To 5.5V
• Memory Case Style: SOP
• No. Of Pins: 28
• Operating Temperature Range: -40°C To +85°C
• Rohs Compliant: Yes

IS65C256AL
IS62C256AL
AC TEST CONDITIONS
Integrated Silicon Solution, Inc.
Rev. C
07/12/07
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 2. Transition is measured ±500 mV from steady-state voltage. Not 100% tested.
3. Not 100% tested.
AC TEST LOADS
Symbol
Parameter
Input Pulse Level
Input Rise and Fall Times
Input and Output Timing
and Reference Levels
Output Load
t
t
t
t
t
t
t
t
t
t
t
output loading specified in Figure 1.
RC
AA
OHA
ACS
DOE
LZOE
HZOE
LZCS
HZCS
PU
PD
(3)
(3)
(2)
(2)
(2)
(2)
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
OUTPUT
5V
Including
100 pF
jig and
scope
Figure 1.
480
See Figures 1 and 2
255
0V to 3.0V
1.5V
Unit
3 ns
Min.
OUTPUT
25
—
—
—
—
2
0
0
3
0
0
-25 ns
5V
Max.
Including
—
25
—
25
13
—
12
—
12
—
20
(1)
jig and
scope
Figure 2.
5 pF
(Over Operating Range)
480
255
Min.
45
—
—
—
—
2
0
0
3
0
0
-45 ns
Max.
45
45
25
20
20
30
—
—
—
—
—
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
5