AS7C1026-12BC ALSC [Alliance Semiconductor Corporation], AS7C1026-12BC Datasheet - Page 6

• Manufacturer Part Number: AS7C1026-12BC
• Description: 5V / 3.3V 64KX16 CMOS SRAM
• Manufacturer: ALSC [Alliance Semiconductor Corporation]

Data retention characteristics (over the operating range)
Data retention waveform
AC test conditions
Notes
1
2
3
4
5
6
7
8
9
10 CE or WE must be High during address transitions. Either CE or WE asserting high terminates a write cycle.
11 All write cycle timings are referenced from the last valid address to the first transitioning address.
12 Not applicable.
13 2V data retention applies to commercial temperature range operation only.
14 C=30pF, except all high Z and low Z parameters where C=5pF.
V
Data retention current
Chip deselect to data retention time
Operation recovery time
Input leakage current
- Output load: see Figure B or Figure C, except as noted.
- Input pulse level: GND to 3.0V. See Figure A.
- Input rise and fall times: 2 ns. See Figure A.
- Input and output timing reference levels: 1.5V.
CC
3/23/01; v.1.0
V
During V
This parameter is sampled, but not 100% tested.
For test conditions, see AC Test Conditions, Figures A, B, and C.
These parameters are specified with C
This parameter is guaranteed, but not tested.
WE is High for read cycle.
CE and OE are Low for read cycle.
Address valid prior to or coincident with CE transition Low.
All read cycle timings are referenced from the last valid address to the first transitioning address.
CE
CC
for data retention
+3.0V
GND
CC
power-up, a pull-up resistor to V
10%
Figure A: Input pulse
90%
Parameter
2 ns
90%
L
= 5pF, as in Figures B or C. Transition is measured ± 500 mV from steady-state voltage.
10%
V
CC
V
IH
CC
on CE is required to meet I
Alliance Semiconductor
t
CDR
Symbol
I
|I
t
V
CCDR
CDR
t
DR
LI
R
|
D
Figure B: 5V Output load
OUT
255W
Data retention mode
V
DR
SB
V
V
IN
specification.
Test conditions
CE
DR
13
2.0V
®
V
V
CC
IN
+5V
480W
C(14)
GND
V
V
CC
= 2.0V
CC
–0.2V or
0.2V
–0.2V
D
OUT
D
Figure C: 3.3V Output load
OUT
Thevenin Equivalent:
255W
168W
V
V
CC
Min
IH
2.0
t
RC
–
0
–
t
R
+1.728V (5V and 3.3V)
+3.3V
320W
C(14)
GND
Max
–
1
–
–
1
AS7C31026
AS7C1026
P. 6 of 10
Unit
ma
ns
ns
V
A