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23K640T-I/P Datasheet(PDF) 7 Page - Microchip Technology

Part # 23K640T-I/P
Description  64K SPI Bus Low-Power Serial SRAM
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

23K640T-I/P Datasheet(HTML) 7 Page - Microchip Technology

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© 2009 Microchip Technology Inc.
DS22126C-page 7
23A640/23K640
FIGURE 2-1:
BYTE READ SEQUENCE
FIGURE 2-2:
BYTE WRITE SEQUENCE
TABLE 2-1:
INSTRUCTION SET
Instruction Name
Instruction Format
Description
READ
0000 0011
Read data from memory array beginning at selected address
WRITE
0000 0010
Write data to memory array beginning at selected address
RDSR
0000 0101
Read STATUS register
WRSR
0000 0001
Write STATUS register
SO
SI
SCK
CS
0
2345
6789 10 11
21 22 23 24 25 26 27 28 29 30 31
1
01
0
0
0
0
01
15 14 13 12
210
76543210
Instruction
16-bit Address
Data Out
High-Impedance
SO
SI
CS
9 1011
2122 23242526 272829 30 31
00
0
0
0
0
01
15 14 13 12
21
0
7
654
321
0
Instruction
16-bit Address
Data Byte
High-Impedance
SCK
0
2
34
567
1
8


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