AT49BV008A Просмотр технического описания (PDF) - Atmel Corporation

Номер в каталоге

Компоненты Описание

производитель

AT49BV008A

8-Megabit (1M x 8/512K x 16) CMOS Flash Memory

Atmel Corporation 

AT49BV008A(T)/8192A(T)

Command Definition (in Hex) for Alternate Pin Definition of AT49BV008A(T)(1)

Command

Sequence

Bus

Cycles

1st Bus

Cycle

Addr Data

2nd Bus

Cycle

Addr Data

3rd Bus

Cycle

Addr Data

4th Bus

Cycle

Addr Data

5th Bus

Cycle

Addr Data

6th Bus

Cycle

Addr Data

Read

Chip Erase

Sector Erase

1

Addr DOUT

6

A555 AA 5AAA 55 A555 80 2555 AA 5AAA 55 A555 10

6

A555 AA 5AAA 55 A555 80 2555 AA 5AAA 55 SA(4) 30

Byte/Word Program

4

A555 AA 5AAA 55 A555 A0 Addr DIN

Boot Block Lockout(2)

6

A555 AA 5AAA 55 A555 80 2555 AA 5AAA 55 A555 40

Product ID Entry

3

A555 AA 5AAA 55 A555 90

Product ID Exit(3)

3

A555 AA 5AAA 55 A555 F0

Product ID Exit(3)

1

xxxx F0

Notes:

1. The DATA FORMAT in each bus cycle is as follows: I/O15 - I/O8 (Don’t Care); I/O7 - I/O0 (Hex)

The ADDRESS FORMAT in each bus cycle is as follows: A15 - A0 (Hex), A-1, and A15 - A18 (Don’t Care)

2. The boot sector has the address range 00000H to 03FFFH for the AT49BV008A; FC000H to FFFFFH for the

AT49BV008AT; 00000H to 01FFFH for the AT49BV8192A; and 7E000H to 7FFFFH for the AT49BV8192AT.

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

4. SA = sector addresses: (A0 - A18)

For the AT49BV008A/8192A

SA = 02XXX for BOOT BLOCK

SA = 04XXX for PARAMETER BLOCK 1

SA = 06XXX for PARAMETER BLOCK 2

SA = FEXXX for MAIN MEMORY ARRAY

For the AT49BV008AT/8192AT

SA = FEXXX for BOOT BLOCK

SA = FAXXX for PARAMETER BLOCK 1

SA = 78XXX for PARAMETER BLOCK 2

SA = 76XXX for MAIN MEMORY ARRAY

Absolute Maximum Ratings*

Temperature Under Bias ................................ -55°C to +125°C

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 VCC + 0.6V

Voltage on RESET

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

*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.

7

Share Link: