поискавой системы для электроныых деталей |
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CAT25010ZAT3 датащи(PDF) 4 Page - Catalyst Semiconductor |
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CAT25010ZAT3 датащи(HTML) 4 Page - Catalyst Semiconductor |
4 / 18 page 4 CAT25010, CAT25020, CAT25040 Doc. No. 1006, Rev. S © 2006 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice FUNCTIONAL DESCRIPTION The CAT25010/20/40 supports the SPI bus data transmission protocol. The synchronous Serial Peripheral Interface (SPI) helps the CAT25010/20/40 to interface directly with many of today’s popular microcontrollers. The CAT25010/20/40 contains an 8-bit instruction register. (The instruction set and the operation codes are detailed in the instruction set table) After the device is selected with CS going low, the first byte will be received. The part is accessed via the SI pin, with data being clocked in on the rising edge of SCK. The first byte contains one of the six op-codes that define the operation to be performed. PIN DESCRIPTION SI: Serial Input SI is the serial data input pin. This pin is used to input all opcodes, byte addresses, and data to be written to the CAT25010/20/40. Input data is latched on the rising edge of the serial clock for SPI modes (0, 0 & 1, 1). SO: Serial Output SO is the serial data output pin. This pin is used to transfer data out of the CAT25010/20/40. During a read cycle, data is shifted out on the falling edge of the serial clock for SPI modes (0,0 & 1,1). Instruction Opcode Operation WREN 0000 0110 Enable Write Operations WRDI 0000 0100 Disable Write Operations RDSR 0000 0101 Read Status Register WRSR 0000 0001 Write Status Register READ 0000 X011(1) Read Data from Memory WRITE 0000 X010(1) Write Data to Memory INSTRUCTION SET Figure 1. Sychronous Data Timing VALID IN VIH VIL tCSS VIH VIL VIH VIL VOH VOL HI-Z tSU tH tWH tWL tV tCS tCSH tHO tDIS HI-Z CS SCK SI SO tRI tFI Note: Dashed Line= mode (1, 1) – –––– Note: (1) X=0 for CAT25010, CAT25020. X=A8 for CAT25040 |
Аналогичный номер детали - CAT25010ZAT3 |
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Аналогичное описание - CAT25010ZAT3 |
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