UM61512A UMC, UM61512A Datasheet - Page 10

• Manufacturer Part Number: UM61512A
• Description: 64k x 8 Bit High Speed CMOS SRAM
• Manufacturer: UMC

AC Test Conditions
Data Retention Characteristics
V
V
I
I
t
t
Symbol
CCDR1
CCDR2
CDR
R
DR1
DR2
Input Pulse Levels
Input Rise and Fall Time
Input and Output Timing Reference Levels
Output Load
VCC for Data Retention
Data Retention Current
Chip Disable to Data Retention
Time
Operation Recovery Time
Parameter
I/O
Figure 1.Output Load
* Including scope and jig.
+5V
255
(T
A
= 0 C to 70 C)
30pF*
Min.
3
3
0
5
-
-
10
Figure 2. Output Load for t
Max.
5.25
5.25
5
5
-
-
I/O
0V to 3.0V
5 ns
1.5V
See Figures 1 and 2
* Including scope and jig.
t
t
CLZ2
OHZ
+5V
, t
, t
255
Unit
mA
mA
WHZ
ms
ns
OLZ
V
V
, and t
, t
CHZ1
5pF*
, t
OW
CE1
CE1
CE1
CE1
CE1
CE2
CE2
CE2
VCC = 3.0V
CE2
V
V
VCC = 3.0V
CE2
V
V
See Retention Waveform
CHZ2
IN
IN
IN
IN
C LZ1
,
VCC - 0.2V or
0.2V
VCC - 0.2V or
0.2V
,
VCC - 0.2V
VCC - 0.2V or
0.2V
0.2V
VCC - 0.2V or
0.2V
VCC - 0.2V
VCC - 0.2V
0.2V
0.2V
Conditions
UM61512A