23A1024 데이터 시트보기 (PDF) - Microchip Technology

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23A1024

1Mbit SPI Serial SRAM with SDI and SQI Interface

Microchip Technology 

23A1024/23LC1024

FIGURE 4-2:

CS

BYTE READ MODE SDI

SCK

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

SIO0

SIO1

0 0 0 1 22 20 18 16 14 12 10 8 6 4 2 0

6420

Instruction

24-Bit Address

Dummy Byte

Data Out

0 0 0 1 23 21 19 17 15 13 11 9 7 5 3 1

7531

Note 1: Page and Sequential mode are similar in that additional bytes can be clocked out before CS is

brought high.

2: The first byte read after the address will be a dummy byte.

FIGURE 4-3:

BYTE WRITE MODE SDI

CS

SCK

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

SIO0

SIO1

0 0 0 0 22 20 18 16 14 12 10 8 6 4 2 0 6 4 2 0

Instruction

24-Bit Address

Data In

0 0 0 1 23 21 19 17 15 13 11 9 7 5 3 1 7 5 3 1

Note: Page and Sequential mode are similar in that additional bytes can be clocked in before CS is brought high.

 2012-2015 Microchip Technology Inc.

DS20005142C-page 15

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