®
LY61256
32K X 8 BIT HIGH SPEED CMOS SRAM
Rev. 1.5
DC ELECTRICAL CHARACTERISTICS
SYMBOL
TEST CONDITION
MIN.
4.5
2.4
- 0.5
- 1
TYP. *4 MAX.
UNIT
PARAMETER
Supply Voltage
VCC
5.0
5.5
VCC+0.5
0.8
V
V
V
*1
Input High Voltage
Input Low Voltage
Input Leakage Current
Output Leakage
Current
VIH
VIL
-
-
-
*2
ILI
V
V
CC ≧ VIN ≧ VSS
CC ≧ VOUT ≧ VSS,
Output Disabled
IOL = 8mA
1
A
µ
ILO
- 1
-
1
A
µ
Output High Voltage
Output Low Voltage
VOH IOH = -4mA
VOL
2.4
-
-
-
V
V
-
-
-
-
-
-
0.4
190
180
160
140
5
110
100
90
80
1
-8
-10
-12
-15
mA
mA
mA
mA
mA
Cycle time = Min.
CE# = VIL , II/O = 0mA
Others at VIL or VIH
Average Operating
Power supply Current
ICC
CE# ≧VCC - 0.2V,
CE# ≧VCC - 0.2V,
Others at 0.2V or VCC-0.2V
Normal
Standby Power
Supply Current
ISB1
LL
-
2
50
A
µ
Notes:
1. VIH(max) = VCC + 3.0V for pulse width less than 10ns.
2. VIL(min) = VSS - 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 VCC = VCC(TYP.) and TA = 25
CAPACITANCE (TA = 25℃, f = 1.0MHz)
PARAMETER
Input Capacitance
Input/Output Capacitance
SYMBOL
CIN
MIN.
-
-
MAX
6
8
UNIT
pF
pF
CI/O
Note : These parameters are guaranteed by device characterization, but not production tested.
AC TEST CONDITIONS
Input Pulse Levels
0.2V to VCC - 0.2V
Input Rise and Fall Times
Input and Output Timing Reference Levels
Output Load
3ns
1.5V
CL = 30pF + 1TTL, IOH/IOL = -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
3
LYONTEK [ Lyontek Inc. ]
