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AT49BV322A(T)
Notes: 1. The DATA FORMAT shown for each bus cycle is as follows; I/O7 - I/O0 (Hex). In word operation I/O15 - I/O8
are don’t care. The ADDRESS FORMAT shown for each bus cycle is as follows: A11 - A0 (Hex). Address A20 through A11
are don’t care in the word mode. Address A20 through A11 and A-1 are don’t care in the byte mode.
2. Since A11 is a Don’t Care, AAA can be replaced with 2AA.
3. SA = sector address. Any byte/word address within a sector can be used to designate the sector address (see pages 15 - 18
for details).
4. Once a sector is in the lockdown mode, data in the protected sector cannot be changed unless the chip is reset or
power cycled.
5. Either one of the Product ID Exit commands can be used.
6. If data bit D1 is “0”, block B is locked. If data bit D1 is “1”, block B can be reprogrammed.
7. The default state (after power-up) of the configuration register is “00”.
8. Bytes of data other than F0 may be used to exit the Product ID mode. However, it is recommended that F0 be used.
9. This fast programming option enables the user to program two words in parallel only when V
PP
= 12V. The Addresses, Addr1
and Addr2, of the two words, D
IN1
and D
IN2
, must only differ in address A0. This command should be used during manufac-
turing purposes only.
6. Command Definition Table
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 6 555 AA AAA
(2)
55 555 80 555 AA AAA 55 555 10
Sector Erase 6 555 AA AAA 55 555 80 555 AA AAA 55 SA
(3)(4)
30
Byte/Word Program 4 555 AA AAA 55 555 A0 Addr D
IN
Dual Byte/Word
Program
(9)
5 555 AA AAA 55 555 E0 Addr1 D
IN1
Addr2 D
IN2
Enter Single Pulse
Program Mode
6 555 AA AAA 55 555 80 555 AA AAA 55 555 A0
Single Pulse
Byte/Word Program
1 Addr D
IN
Sector Lockdown 6 555 AA AAA
(2)
55 555 80 555 AA AAA 55 SA
(3)(4)
60
Erase/Program
Suspend
1XXXB0
Erase/Program
Resume
1XXX30
Product ID Entry 3 555 AA AAA 55 555 90
Product ID Exit
(5)
3 555 AA AAA 55 555 F0
(8)
Product ID Exit
(5)
1XXXF0
(8)
Program Protection
Register
4 555 AA AAA 55 555 C0 Addr D
IN
Lock Protection
Register - Block B
4 555 AA AAA 55 555 C0 080 X0
Status of Block B
Protection
4 555 AA AAA 55 555 90 80 D
OUT
(6)
Set Configuration
Register
4 555 AA AAA 55 555 D0 XXX 00/01
(7)
CFI Query 1 X55 98
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AT49BV322A(T)
Note: All address lines not specified in the above table must be “0” when accessing the protection register, i.e., A20 - A8 = 0.
7. Absolute Maximum Ratings*
Temperature under Bias ................................ -55°C to +125°C
*NOTICE: Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent dam-
age to the device. This is a stress rating only and
functional operation of the device at these or any
other conditions beyond those indicated in the
operational sections 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
CC
+ 0.6V
Voltage on V
PP
with Respect to Ground ...................................-0.6V to +13.0V
8. Protection Register Addressing Table
Word Use Block A7 A6 A5 A4 A3 A2 A1 A0
0FactoryA10000001
1FactoryA10000010
2FactoryA10000011
3FactoryA10000100
4UserB10000101
5UserB10000110
6UserB10000111
7UserB10001000
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9. AT49BV322A – Sector Address Table
Sector Size (Bytes/Words)
x8
Address Range (A20 - A-1)
x16
Address Range (A20 - A0)
SA0 8K/4K 000000 - 001FFF 00000 - 00FFF
SA1 8K/4K 002000 - 003FFF 01000 - 01FFF
SA2 8K/4K 004000 - 005FFF 02000 - 02FFF
SA3 8K/4K 006000 - 007FFF 03000 - 03FFF
SA4 8K/4K 008000 - 009FFF 04000 - 04FFF
SA5 8K/4K 00A000 - 00BFFF 05000 - 05FFF
SA6 8K/4K 00C000 - 00DFFF 06000 - 06FFF
SA7 8K/4K 00E000 - 00FFFF 07000 - 07FFF
SA8 64K/32K 010000 - 01FFFF 08000 - 0FFFF
SA9 64K/32K 020000 - 02FFFF 10000 - 17FFF
SA10 64K/32K 030000 - 03FFFF 18000 - 1FFFF
SA11 64K/32K 040000 - 04FFFF 20000 - 27FFF
SA12 64K/32K 050000 - 05FFFF 28000 - 2FFFF
SA13 64K/32K 060000 - 06FFFF 30000 - 37FFF
SA14 64K/32K 070000 - 07FFFF 38000 - 3FFFF
SA15 64K/32K 080000 - 08FFFF 40000 - 47FFF
SA16 64K/32K 090000 - 09FFFF 48000 - 4FFFF
SA17 64K/32K 0A0000 - 0AFFFF 50000 - 57FFF
SA18 64K/32K 0B0000 - 0BFFFF 58000 - 5FFFF
SA19 64K/32K 0C0000 - 0CFFFF 60000 - 67FFF
SA20 64K/32K 0D0000 - 0DFFFF 68000 - 6FFFF
SA21 64K/32K 0E0000 - 0EFFFF 70000 - 77FFF
SA22 64K/32K 0F0000 - 0FFFFF 78000 - 7FFFF
SA23 64K/32K 100000 - 10FFFF 80000 - 87FFF
SA24 64K/32K 110000 - 11FFFF 88000 - 8FFFF
SA25 64K/32K 120000 - 12FFFF 90000 - 97FFF
SA26 64K/32K 130000 - 13FFFF 98000 - 9FFFF
SA27 64K/32K 140000 - 14FFFF A0000 - A7FFF
SA28 64K/32K 150000 - 15FFFF A8000 - AFFFF
SA29 64K/32K 160000 - 16FFFF B0000 - B7FFF
SA30 64K/32K 170000 - 17FFFF B8000 - BFFFF
SA31 64K/32K 180000 - 18FFFF C0000 - C7FFF
SA32 64K/32K 190000 - 19FFFF C8000 - CFFFF
SA33 64K/32K 1A0000 - 1AFFFF D0000 - D7FFF
SA34 64K/32K 1B0000 - 1BFFFF D8000 - DFFFF
SA35 64K/32K 1C0000 - 1CFFFF E0000 - E7FFF
SA36 64K/32K 1D0000 - 1DFFFF E8000 - EFFFF

AT49BV322A-70TI

Mfr. #:
Manufacturer:
Microchip Technology / Atmel
Description:
NOR Flash 32M (2Mx16)
Lifecycle:
New from this manufacturer.
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