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S-25C010A01-J8T1G Datasheet(PDF) 10 Page - Seiko Instruments Inc |
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S-25C010A01-J8T1G Datasheet(HTML) 10 Page - Seiko Instruments Inc |
10 / 37 page CMOS SPI SERIAL E2PROM S-25C010A/020A/040A Rev.1.0_00 Seiko Instruments Inc. 10 Instruction Setting Table 15 and 16 are the lists of instruction for the S-25C010A/020A/040A. The instruction is able to be input by changing the CS pin “H” to “L”. Input the instruction in the MSB first. Each instruction code is organized with 1-byte as shown below. If the S-25C010A/020A/040A receives any invalid instruction code, the device goes in the non-select status. 1. S-25C010A020A Table 15 Instruction code Address Data Instruction Operation SCK input clock 1 to 8 SCK input clock 9 to 16 SCK input clock 17 to 24 WREN Write enable 0000 X110 − − WRDI Write disable 0000 X100 − − RDSR Read the status register 0000 X101 b7 to b0 output *1 − WRSR Write in the status register 0000 X001 b7 to b0 input − READ Read memory data 0000 X011 A7 *2 to A0 D7 to D0 output *3 WRITE Write memory data 0000 X010 A7 *2 to A0 D7 to D0 input *1. Sequential data reading is possible. *2. In the S-25C010A, A7 = Don’t care because the address range is A6 to A0. *3. After outputting data in the specified address, data in the following address is output. Remark X = Don’t care. 2. S-25C040A Table 16 Instruction code Address Data Instruction Operation SCK input clock 1 to 8 SCK input clock 9 to 16 SCK input clock 17 to 24 WREN Write enable 0000 X110 − − WRDI Write disable 0000 X100 − − RDSR Read the status register 0000 X101 b7 to b0 output *1 − WRSR Write in the status register 0000 X001 b7 to b0 input − READ Read memory data 0000 [A8 *2] 011 A7 to A0 D7 to D0 output *3 WRITE Write memory data 0000 [A8 *2] 010 A7 to A0 D7 to D0 input *1. Sequential data reading is possible. *2. In the S-25C040A, assign bit A8 in the address into the fifth bit in an instruction code. *3. After outputting data in the specified address, data in the following address is output. Remark X = Don’t care. |
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