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PDF WMS7201 Data sheet ( Hoja de datos )
| Número de pieza | WMS7201 | |
| Descripción | 256-TAP NON-VOLATILE DIGITAL POTENTIOMETER | |
| Fabricantes | Winbond | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de WMS7201 (archivo pdf) en la parte inferior de esta página. Total 29 Páginas | ||
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PRELIMINARY
WMS7201
256-TAP NON-VOLATILE DIGITAL POTENTIOMETER
Publication Release Date: January 2003
- 1 - Revision 1.1
1 page  
5. PIN CONFIGURATION
WMS7201
FIGURE 2 – PACKAGE TYPES
Publication Release Date: January 2003
- 5 - Revision 1.1
5 Page 
WMS7201
TABLE 3 – A1 AND A0 ADDRESS BIT DECODE TABLE
[A1 A0]
[0 0] [0 1] [1 0] [1 1]
Channel
0
123
A3 and A2 are the address bits that decide which NVMEM memory to be accessed, as shown in the
table below.
TABLE 4 – A3 AND A2 ADDRESS BIT DECODE TABLE
[A3 A2]
[0 0] [0 1] [1 0] [1 1]
NVMEM
01 2 3
D7-D0 are the data values to be loaded into the Tap Register to set the wiper position, while D8 is
used to set the output mode. D8 has to be loaded into the NVMEM0~3 first and then the “Load Tap
Register” command (#6) has be executed to load D8 into the output-selection MUX to set the output
mode. D8=0 sets the output to Buffer Off mode while D8=1 sets to Buffer On mode.
CS
CLK
CS is taken LOW
before command
starts
CS is taken HIGH
after command is
sent
1 2 3 4 5 6 7 8 91 1 1 1 1 1 1 1 1 1 2 2 2 2 2
0123 4 567 890 12 34
SDI C3C2 C1 C0 A3 A2 A1 A0 x x x x x x x D8 D7 D6 D5 D4 D3 D2 D1 D0
`
Note:
• A multiple of 24 bits must always be sent or the
command will not be valid
• Bits marked ‘x’ are don’t care bits.
FIGURE 5 – SPI COMMAND WAVEFORMS
- 11 -
Publication Release Date: January 2003
Revision 1.1
11 Page | ||
| Páginas | Total 29 Páginas | |
| PDF Descargar | [ Datasheet WMS7201.PDF ] | |
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