AT49BV/LV040

4

Absolute Maximum Ratings*

Temperature Under Bias ................................ -55

°C to +125°C

*NOTICE:

Stresses beyond those listed under “Absolute Maxi-

mum Ratings” may cause permanent damage to the

device. This is a stress rating only and functional

operation of the device at these or any other condi-

tions beyond those indicated in the operational sec-

tions of this specification is not implied. Exposure to

absolute maximum rating conditions for extended

periods may affect device reliability.

Storage Temperature ..................................... -65

°C to +150°C

All Input Voltages

(including NC Pins)

with Respect to Ground ...................................-0.6V to +6.25V

All Output Voltages

Voltage on OE

with Respect to Ground ..................................-0.6V to + 13.5V

Command Definition (in Hex)

Notes:

1.

The 16K byte boot sector has the address range 00000H to 03FFFH for the AT49BV/LV040 and 7C000H to 7FFFFH for the

AT49BV/LV040T.

2.

Either one of the Product ID exit commands can be used.

Command

Sequence

Bus

Cycles

1st Bus

Cycle

2nd Bus

Cycle

3rd Bus

Cycle

4th Bus

Cycle

5th Bus

Cycle

6th Bus

Cycle

Addr

Data

Addr

Data

Addr

Data

Addr

Data

Addr

Data

Addr

Data

Read

1

Addr

Chip Erase

6

5555

AA

2AAA

55

5555

80

5555

AA

2AAA

55

5555

10

Byte Program

4

5555

AA

2AAA

55

5555

A0

Addr

6

5555

AA

2AAA

55

5555

80

5555

AA

2AAA

55

5555

40

Product ID Entry

3

5555

AA

2AAA

55

5555

90

3

5555

AA

2AAA

55

5555

F0

1

XXXX

F0