®
LY6125616
Rev. 2.1
5V 256K X 16 BIT HIGH SPEED CMOS SRAM
TRUTH TABLE
MODE
Standby
Output Disable
Read
CE#
H
L
L
L
L
L
L
L
L
OE#
X
H
X
L
L
L
X
X
X
WE# LB#
X
H
X
H
H
H
L
L
L
X
X
H
L
H
L
L
H
L
UB#
X
X
H
H
L
L
H
L
L
I/O OPERATION
DQ0-DQ7
DQ8-DQ15
High – Z
High – Z
High – Z
High – Z
High – Z
High – Z
D
OUT
High – Z
High – Z
D
OUT
D
OUT
D
OUT
D
IN
High – Z
High – Z
D
IN
D
IN
D
IN
SUPPLY CURRENT
I
SB1
I
CC
I
CC
Write
Note:
I
CC
H = V
IH
, L = V
IL
, X = Don't care.
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
12
Cycle time = Min.
Average Operating
15
I
CC
CE# = V
IL
, I
I/O
= 0mA
Power supply Current
20
Others at V
IL
or V
IH
25
12
Standby Power
CE#
≧
V
CC
- 0.2V
I
SB1
15/20/25
Supply Current
Others at 0.2V / V
CC
-0.2V
15/20/25LL
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℃
5. 1mA for special request
6. 50µA for special request
MIN.
4.5
2.2
- 0.3
-1
-1
2.4
-
-
-
-
-
-
-
-
TYP.
5.0
-
-
-
-
*4
MAX.
5.5
V
CC
+0.3
0.8
1
1
-
0.4
180
140
110
100
15
5
3*
6
100*
UNIT
V
V
V
µA
µA
V
V
mA
mA
mA
mA
mA
mA
µA
-
-
-
100
80
75
-
0.1
20
CAPACITANCE
(T
A
= 25
℃
, f = 1.0MHz)
PARAMETER
Input Capacitance
Input/Output Capacitance
SYMBOL
C
IN
C
I/O
MIN.
-
-
MAX
8
10
UNIT
pF
pF
Note : These parameters are guaranteed by device characterization, but not production tested.
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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