SRAM

AS5C1008

AS5C1008

Rev. 3.9 10/10

Micross Components reserves the right to change products or specifications without notice.

3

PARAMETER

CONDITIONS

SYMBOL MIN

MAX MIN MAX MIN MAX

MIN

MAX UNITS

Dynamic Operating

Current

180

150

140

125

mA

TTL Standby Current -

TTL Inputs

90

75

70

60

mA

CMOS Standby Current -

CMOS Inputs

10

10

10

10

mA

Input Leakage Current

-10

10

-10

10

-10

10

-10

10

A

Output Leakage Current

Output Disabled

-10

10

-10

10

-10

10

-10

10

A

Output High Voltage

2.42.4

2.42.4

V

Output Low Voltage

0.4

0.4

0.4

0.4

V

Input High Voltage

2.2

Vcc

+0.5

2.2

Vcc

+0.5

2.2

Vcc

+0.5

2.2

Vcc

+0.5

V

Input Low Voltage

-0.5

0.8

-0.5

0.8

-0.5

0.8

-0.5

0.8

V

-15

-20

-25

-35

ELECTRICAL CHARACTERISTICS AND RECOMMENDED DC OPERATING CONDITIONS

A

PIN DESCRIPTIONS

A0 - A16: Address Inputs

These 17 address inputs select one of the 131,072 8-bit words

in the RAM.

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.

CE

2

: Chip Enable 2 Input

CE

2

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.

OE\: Output Enable Input

The Output Enable Input is asserted LOW. If asserted LOW

while CE\

1

is asserted (LOW) and CE

2

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.

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 CE

2

is asserted (HIGH) input data present on the I/O pins

will be written into the selected memory location.