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AT49BV802AT-70TI Datasheet(PDF) 11 Page - ATMEL Corporation |
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AT49BV802AT-70TI Datasheet(HTML) 11 Page - ATMEL Corporation |
11 / 29 page 11 AT49BV802A(T) 3405C–FLASH–9/04 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 A18 through A11 are don’t care in the word mode. Address A18 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 13 - 14 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. Command Definition in Hex (1) 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 Enter Single Pulse Program Mode 6 555 AA AAA 55 555 80 555 AA AAA 55 555 A0 Single Pulse Byte/Word Program 1Addr D IN Sector Lockdown 6 555 AA AAA(2) 55 555 80 555 AA AAA 55 SA(3)(4) 60 Erase/Program Suspend 1 XXX B0 Erase/Program Resume 1 XXX 30 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) 1 XXX F0(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 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 |
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