AT49F001(N)(T)

5

Notes:

1. The DATA FORMAT in each bus cycle is as follows: I/O7 - I/O0 (Hex)

2. The 16K byte boot sector has the address range 00000H to 03FFFH for the AT49F001(N) and

1C000H to 1FFFFH for the AT49F001(N)T.

3. Either one of the Product ID Exit commands can be used.

4. SA = sector addresses

For the AT49F001(N):

SA = 10000 to 1FFFF for BOOT BLOCK

Nothing will happen and the device goes back to the read mode in 100 ns

SA = 04000 to 05FFF for PARAMETER BLOCK 1

SA = 06000 to 07FFF for PARAMETER BLOCK 2

SA = 08000 to 0FFFF for MAIN MEMORY ARRAY BLOCK 1

This command will erase - PB1, PB2 and MMB1

SA = 10000 to 1FFFF for MAIN MEMORY ARRAY BLOCK 2

For the AT49F001(N)T:

SA = 1C000 to 1FFFF for BOOT BLOCK

Nothing will happen and the device goes back to the read mode in 100 ns

SA = 1A000 to 1BFFF for PARAMETER BLOCK 1

SA = 18000 to 19FFF for PARAMETER BLOCK 2

SA = 10000 to 17FFF for MAIN MEMORY ARRAY BLOCK 1

This command will erase - PB1, PB2 and MMB1

SA = 00000 to 0FFFF for MAIN MEMORY ARRAY BLOCK 2

Absolute Maximum Ratings*

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

D

OUT

Chip Erase

6

5555

AA

2AAA

55

5555

80

5555

AA

2AAA

55

5555

10

Sector Erase

6

5555

AA

2AAA

55

5555

80

5555

AA

2AAA

55

30

Byte Program

4

5555

AA

2AAA

55

5555

A0

Addr

D

IN

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

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

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

Voltage on OE

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