®
LY61L256
32K X 8 BIT HIGH SPEED CMOS SRAM
Rev. 1.4
ABSOLUTE MAXIMUN RATINGS*
PARAMETER
SYMBOL
VT1
RATING
-0.5 to 4.6
UNIT
V
Voltage on VCC relative to VSS
Voltage on any other pin relative to VSS
VT2
-0.5 to VCC+0.5
0 to 70(C grade)
-20 to 80(E grade)
-40 to 85(I grade)
-65 to 150
V
℃
Operating Temperature
TA
℃
W
Storage Temperature
Power Dissipation
DC Output Current
TSTG
PD
1
IOUT
50
mA
*Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress
rating only and functional operation of the device or any other conditions above those indicated in the operational sections of this
specification is not implied. Exposure to the absolute maximum rating conditions for extended period may affect device reliability.
TRUTH TABLE
CE#
H
OE#
X
WE#
X
SUPPLY CURRENT
ISB,ISB1
MODE
I/O OPERATION
Standby
High-Z
L
L
L
H
L
H
H
L
Output Disable
Read
High-Z
DOUT
DIN
ICC,ICC1
ICC,ICC1
X
Write
ICC,ICC1
Note: H = VIH, L = VIL, X = Don't care.
DC ELECTRICAL CHARACTERISTICS
SYMBOL
TEST CONDITION
MIN.
3.15
3.0
2.0
- 0.5
- 1
TYP. *4 MAX.
UNIT
PARAMETER
Supply Voltage
-10
-12/-15
3.3
3.3
3.6
3.6
V
V
V
V
VCC
*1
Input High Voltage
Input Low Voltage
Input Leakage Current
Output Leakage
Current
VIH
VIL
-
-
-
VCC+0.5
0.6
*2
ILI
V
V
CC ≧ VIN ≧ VSS
CC ≧ VOUT ≧ VSS,
Output Disabled
1
A
µ
ILO
- 1
-
1
A
µ
Output High Voltage
Output Low Voltage
VOH IOH = -4mA
2.4
3.0
-
60
50
40
-
V
V
mA
mA
mA
VOL
IOL = 8mA
-
-
-
-
0.4
75
60
50
-10
-12
-15
Cycle time = Min.
CE# = VIL , II/O = 0mA
Others at VIL or VIH
ICC
Average Operating
Power supply Current
Cycle time = 1 s
µ
ICC1
ISB
≦
-
1
5
mA
CE# 0.2V and II/O = 0mA
Other pins at 0.2V or VCC-0.2V
CE# = VIH, others at VIL or VIH
CE# ≧VCC - 0.2V
-
-
10
0.5
15
3
mA
mA
Standby Power
Supply Current
Normal
ISB1
CE# ≧VCC - 0.2V
Others at 0.2V or VCC-0.2V
LL
-
1
20
A
µ
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
3
LYONTEK [ Lyontek Inc. ]
