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AM93LC86NA 데이터시트(PDF) 4 Page - Anachip Corp |
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AM93LC86NA 데이터시트(HTML) 4 Page - Anachip Corp |
4 / 12 page AM93LC86 16384-bits Serial Electrically Erasable PROM (Preliminary) Anachip Corp. www.anachip.com.tw Rev 0.1 Oct 20, 2003 4/12 Pin Capacitance (note) (T A=25°C, F=1Mhz ) Symbol Parameter Max Unit COUT Output capacitance 5 pF CIN Input capacitance 5 pF Note: The parameter is characterized and isn’t 100% tested. Instruction Set Address Input data Instruction (note) Start bit Op code X8 X16 × 8 × 16 READ 1 10 A10 ~ A0 A9 ~ A0 - - EWEN 1 00 11XXXXXXXXX 11XXXXXXXX - - WRITE 1 01 A10 ~ A0 A9 ~ A0 D7 – D0 D15 - D0 WRAL 1 00 01XXXXXXXXX 01XXXXXXXX D7 – D0 D15 - D0 EWDS 1 00 00XXXXXXXXX 00XXXXXXXX - - ERASE 1 11 A10 ~ A0 A9 ~ A0 - - ERAL 1 00 10XXXXXXXXX 10XXXXXXXX - - Note: READ: Read EWDS: Erase/write disable EWEN: Erase/write enable ERASE: Erase WRITE: Write ERAL: Erase all WRAL: Write all Functional Description Endurance and data retention The AM93LC86 is designed for applications requiring up to 1M programming cycles (WRITE, WRAL, EARSE and ERAL). It provides 40 years of secure data retention. Device operation The AM93LC86 is controlled by seven 13-bit instructions. Instructions are clocked in (serially) on the DI pin. Each instruction begins with a logical "1" (the start bit). This is followed by the opcode (2 bits), the address field (10/11 bits), and data, if appropriated,. The clock signal (SK) may be halted at any time and the AM93LC86 will remain in its last state. This allows full static flexibility and maximum power conservation. Auto increment read operations Sequential read is possible, since the AM93LC86 has been designed to output a continuous stream of memory content in response to a single read operation instruction. To utilize this function, the system asserts a read instruction specifying a start location address. Once the 8-bit or 16-bit of the addressed word have been clocked out, the data in consecutively higher address locations is output. The address will wrap around continuously with CS high until the chip select (CS) control pin is brought low. This allows for single instruction data dumps to be executed with a minimum of firmware overhead. Read (READ) The READ instruction is the only instruction that outputs serial data on the DO pin. After the read instruction and address have been decoded, data is transferred from the selected memory register into a 8-bit or 16-bit serial shift register. (Please note that one logical "0" bit precedes the actual 8-bit or 16-bit output data string.) The output on DO changes during the rising edge transitions of SK. (shown in figure 3) |
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