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 4-6:

BYTE WRITE MODE SQI

CS

SCK

0 1 2 3 4 5 6 78 9

SIO0

0 0 20 16 12 8 4 0 4 0

SIO1

0 1 21 17 13 9 5 1 5 1

SIO2

0 0 22 18 14 10 6 2 6 2

SIO3

0 0 23 19 15 11 7 3 7 3

Instruction

24-Bit Address

Data In

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

brought high.

4.3 Exit SDI or SQI Mode

To exit from SDI mode, the RSTIO command must be

issued. The command must be entered in the current

device configuration, either SDI or SQI, see Figure 4-7

and Figure 4-8.

FIGURE 4-7:

RESET SDI MODE (RSTIO) – FROM SDI MODE

CS

SCK

0123

SIO0

SIO1

11 11

11 1 1

 2012-2015 Microchip Technology Inc.

DS20005142C-page 17

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