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AT49F4096AT-90RI Datasheet(PDF) 2 Page - ATMEL Corporation |
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AT49F4096AT-90RI Datasheet(HTML) 2 Page - ATMEL Corporation |
2 / 15 page AT49F004(T)/4096A(T) 2 block of data and then programming on a byte-by-byte or word-by-word basis. The device is erased by executing the erase command sequence; the device internally controls the erase opera- tion. The memory is divided into four blocks for erase oper- ations. There are two 4K word parameter block sections, the boot block, and the main memory array block. The typi- cal number of program and erase cycles is in excess of 10,000 cycles. The 8K word boot block section includes a reprogramming lock out feature to provide data integrity. This feature is enabled by a command sequence. Once the boot block programming lockout feature is enabled, the data in the boot block cannot be changed when input levels of 5.5 volts or less are used. The boot sector is designed to con- tain user secure code. For the AT49F4096A(T), the BYTE pin controls whether the device data I/O pins operate in the byte or word config- uration. If the BYTE pin is set at a logic “1” or left open, the device is in word configuration, I/O0 - I/O15 are active and controlled by CE and OE. If the BYTE pin is set at logic “0”, the device is in byte con- figuration, and only data I/O pins I/O0 - I/O7 are active and controlled by CE and OE. The data I/O pins I/O8 - I/O14 are tri-stated and the I/O15 pin is used as an input for the LSB (A-1) address function. AT49F4096A(T) TSOP Top View Type 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 A15 A14 A13 A12 A11 A10 A9 A8 NC NC WE RESET NC NC NC NC A17 A7 A6 A5 A4 A3 A2 A1 A16 BYTE GND I/O15 / A-1 I/O7 I/O14 I/O6 I/O13 I/O5 I/O12 I/O4 VCC I/O11 I/O3 I/O10 I/O2 I/O9 I/O1 I/O8 I/O0 OE GND CE A0 AT49F004(T) TSOP Top View Type 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 A16 A15 A14 A13 A12 A11 A9 A8 WE RESET NC RDY/BUSY A18 A7 A6 A5 A4 A3 A2 A1 A17 GND NC NC A10 I/O7 I/O6 I/O5 I/O4 VCC VCC NC I/O3 I/O2 I/O1 I/O0 OE GND CE A0 AT49F4096A(T) SOIC (SOP) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 NC NC A17 A7 A6 A5 A4 A3 A2 A1 A0 CE GND OE I/O0 I/O8 I/O1 I/O9 I/O2 I/O10 I/O3 I/O11 RESET WE A8 A9 A10 A11 A12 A13 A14 A15 A16 BYTE GND I/O15/A-1 I/O7 I/O14 I/O6 I/O13 I/O5 I/O12 I/O4 VCC |
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