®
LY61256
Rev. 1.7
32K X 8 BIT HIGH SPEED CMOS SRAM
DC ELECTRICAL CHARACTERISTICS
SYMBOL
TEST CONDITION
PARAMETER
Supply Voltage
V
CC
*1
Input High Voltage
V
IH
*2
Input Low Voltage
V
IL
Input Leakage Current
I
LI
V
CC
≧
V
IN
≧
V
SS
Output Leakage
V
CC
≧
V
OUT
≧
V
SS
,
I
LO
Current
Output Disabled
Output High Voltage
V
OH
I
OH
= -4mA
Output Low Voltage
V
OL
I
OL
= 8mA
Average Operating
Power supply Current
Standby Power
Supply Current
I
CC
Cycle time = Min.
CE# = V
IL
, I
I/O
= 0mA
Others at V
IL
or V
IH
-8
-10
-12
-15
Normal
MIN.
4.5
2.4
- 0.5
-1
-1
2.4
-
-
-
-
-
-
-
TYP.
5.0
-
-
-
-
-
-
110
100
90
80
1
2
*4
MAX.
5.5
V
CC
+0.5
0.8
1
1
-
0.4
190
180
160
140
5
50
UNIT
V
V
V
µA
µA
V
V
mA
mA
mA
mA
mA
µA
I
SB1
CE#
≧
V
CC
- 0.2V,
CE#
≧
V
CC
- 0.2V,
LL
Others at 0.2V or V
CC
-0.2V
Notes:
1. V
IH
(max) = V
CC
+ 3.0V for pulse width less than 10ns.
2. V
IL
(min) = V
SS
- 3.0V for pulse width less than 10ns.
3. Over/Undershoot specifications are characterized, not 100% tested.
4. Typical values are included for reference only and are not guaranteed or tested.
Typical valued are measured at V
CC
= V
CC
(TYP.) and T
A
= 25℃
CAPACITANCE
(T
A
= 25
℃
, f = 1.0MHz)
PARAMETER
Input Capacitance
Input/Output Capacitance
SYMBOL
C
IN
C
I/O
MIN.
-
-
MAX
6
8
UNIT
pF
pF
Note : These parameters are guaranteed by device characterization, but not production tested.
AC TEST CONDITIONS
Input Pulse Levels
Input Rise and Fall Times
Input and Output Timing Reference Levels
Output Load
0.2V to V
CC
- 0.2V
3ns
1.5V
C
L
= 30pF + 1TTL, I
OH
/I
OL
= -4mA/8mA
Lyontek Inc.
reserves the rights to change the specifications and products without notice.
5F, No. 2, Industry E. Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan.
TEL: 886-3-6668838
FAX: 886-3-6668836
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