SRAM
AS5C1008
Austin Semiconductor, Inc.
ELECTRICAL CHARACTERISTICS AND RECOMMENDED DC OPERATING CONDITIONS
(-55oC<TA<+125oC or -40oC to +85oC;Vcc = 5V+10%)
-15
-20
-25
PARAMETER
CONDITIONS
Vcc=MAX, IOUT = 0mA,
SYMBOL MIN MAX MIN MAX MIN MAX UNITS
Dynamic Operating
Current
ICC1
180
90
150
75
140
70
mA
mA
CE1 = VIL and CE2 = VIH, f = fmax
Vcc=MAX, VIN = VIH or VIL,
TTL Standby Current -
TTL Inputs
ISB1
CE\1> VIH and CE2 > VIL, f = fmax
Vcc=MAX, CE\1 > Vcc -0.2V, or CE2
< 0.2V, VIN > Vcc -0.2V and
CMOS Standby Current -
CMOS Inputs
10
10
10
mA
ISB2
VIN < 0.2V, f = 0
Input Leakage Current
Output Leakage Current
-10
-10
2.4
10
10
-10
-10
2.4
10
10
-10
-10
2.4
10
10
µA
µA
GND < VIN < Vcc
ILI
GND < VOUT < Vcc
Output Disabled
ILO
Output High Voltage
Output Low Voltage
V
V
Vcc = MIN, IOH = -4.0 mA
VOH
VOL
0.4
0.4
0.4
Vcc = MIN, IOL = 8.0 mA
Vcc
+0.5
Vcc
+0.5
Vcc
+0.5
Input High Voltage
Input Low Voltage
VIH
VIL
2.2
2.2
2.2
V
V
-0.5 0.8 -0.5 0.8 -0.5 0.8
PIN DESCRIPTIONS
A0 - A16: Address Inputs
OE\:OutputEnableInput
The Output Enable Input is asserted LOW. If asserted LOW
These 17 address inputs select one of the 131,072 8-bit words in
the RAM.
while CE\1 is asserted (LOW) and CE2 is asserted (HIGH) and
WE\ is deasserted (HIGH), data from the SRAM will be present
on the I/O pins. The I/O pins will be in the high-impedance
state when OE\ is deasserted.
CE\1: Chip Enable 1 Input
CE\1 is asserted LOW to read from or write to the device. If Chip
Enable 1 is deasserted, the device is deselected and is in standby
power mode. The I/O pins will be in the high-impedance state
when the device is deselected.
WE\: Write Enable Input
The Write Enable input is asserted LOW and controls read and
write operations. When CE\1 and WE\ are both asserted (LOW)
and CE2 is asserted (HIGH) input data present on the I/O pins
will be written into the selected memory location.
CE2: Chip Enable 2 Input
CE2 is asserted HIGH to read from or write to the device. If Chip
Enable 2 is deasserted, the device is deselected and is in standby
power mode. The I/O pins will be in the high-impedance state
when the device is deselected.
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
AS5C1008
Rev. 3.5 1/01
3
AUSTIN [ AUSTIN SEMICONDUCTOR ]
