UVEPROM

UVEPROM

UVEPROM

UVEPROM

UVEPROM

AS27C256

AS27C256

Rev. 2.0 7/06

Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.

3

Austin Semiconductor, Inc.

OPERATION

The seven modes of operation for the AS27C256 are listed in Table 1. The read mode requires a single 5V supply.

All inputs are TTL level except for V

for signature mode.

TABLE 1. OPERATION MODES

NOTES:

* X can be V

**

Die is AMD. User can program on benchtop programmer by selecting AM27C256 from the device

type selection menu.

READ

OUTPUT

DISABLE STANDBY PROGRAMMING VERIFY

PROGRAM

INHIBIT

E\

G\

X

X

X

1

X

1

X

1

A9

X

X

X

X

X

X

2

2

A0

X

X

X

X

X

X

MFG

DEVICE

01h

10h

Data Out

Data Out

High-Z

High-Z

Data In

High-Z

FUNCTION

(PINS)

SIGNATURE MODE

MODE*

CODE**

DQ0-DQ7