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MCP4341502E/ML Datasheet(PDF) 53 Page - Microchip Technology

Part # MCP4341502E/ML
Description  7/8-Bit Quad SPI Digital POT with Non-Volatile Memory
PDF  80 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP4341502E/ML Datasheet(HTML) 53 Page - Microchip Technology

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© 2009 Microchip Technology Inc.
DS22233A-page 53
MCP434X/436X
7.5.3
CONTINUOUS WRITES TO
VOLATILE MEMORY
Continuous writes are possible only when writing to the
volatile memory registers (address 00h, 01h, and 04h).
Figure 7-3 shows the sequence for three continuous
writes. The writes do not need to be to the same volatile
memory address.
7.5.4
CONTINUOUS WRITES TO
NON-VOLATILE MEMORY
Continuous writes to non-volatile memory are not
allowed, and attempts to do so will result in a command
error (CMDERR) condition.
FIGURE 7-3:
Continuous Write Sequence (Volatile Memory only).
A
D
3
A
D
2
A
D
1
A
D
0
00
D
9
D
8
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
111111
1*
111111111
A
D
3
A
D
2
A
D
1
A
D
0
00
D
9
D
8
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
111111
1*
111111111
A
D
3
A
D
2
A
D
1
A
D
0
00
D
9
D
8
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
111111
1*
111111111
COMMAND BYTE
DATA BYTE
SDI
SDO
Note 1: If a Command Error (CMDERR) occurs at this bit location (*), then all following SDO bits will be
driven low until the CS pin is driven inactive (VIH).



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