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MCP4231-103E/SN PDF预览

MCP4231-103E/SN

更新时间: 2024-11-05 11:05:11
品牌 Logo 应用领域
美国微芯 - MICROCHIP 电位器存储
页数 文件大小 规格书
88页 2525K
描述
7/8-Bit Single/Dual SPI Digital POT with Volatile Memory

MCP4231-103E/SN 数据手册

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MCP413X/415X/423X/425X  
7/8-Bit Single/Dual SPI Digital POT with Volatile Memory  
Features  
Description  
• Single or Dual Resistor Network options  
• Potentiometer or Rheostat configuration options  
• Resistor Network Resolution  
- 7-bit: 128 Resistors (129 Steps)  
- 8-bit: 256 Resistors (257 Steps)  
• RAB Resistances options of:  
- 5 k  
The MCP41XX and MCP42XX devices offer a wide  
range of product offerings using an SPI interface. This  
family of devices support 7-bit and 8-bit resistor  
networks, and Potentiometer and Rheostat pinouts.  
Package Types (top view)  
MCP41X1  
MCP41X2  
Single Potentiometer  
- 10 kΩ  
Single Rheostat  
- 50 kΩ  
CS  
SCK  
SDI  
CS  
SCK  
SDI/SDO  
1
2
3
4
VDD  
P0B  
P0W  
P0A  
1
2
3
4
V
DD  
8
7
6
5
8
7
6
5
SDO  
P0B  
P0W  
- 100 kΩ  
• Zero Scale to Full-Scale Wiper operation  
• Low Wiper Resistance: 75(typical)  
• Low Tempco:  
VSS  
V
SS  
PDIP, SOIC, MSOP  
PDIP, SOIC, MSOP  
- Absolute (Rheostat): 50 ppm typical  
(0°C to 70°C)  
CS  
CS  
VDD  
1
2
8 VDD  
1
2
8
7
SCK  
SDI/SDO  
VSS  
P0B SCK  
SDO  
7
EP  
9
EP  
9
- Ratiometric (Potentiometer): 15 ppm typical  
• SPI Serial Interface (10 MHz, modes 0,0 & 1,1)  
- High-Speed Read/Writes to wiper registers  
- SDI/SDO multiplexing (MCP41X1 only)  
P0W  
P0A  
SDI  
VSS  
P0B  
3
4
6
5
3
4
6
5
P0W  
3x3 DFN*  
3x3 DFN*  
• Resistor Network Terminal Disconnect Feature  
via:  
MCP42X1 Dual Potentiometers  
- Shutdown pin (SHDN)  
- Terminal Control (TCON) Register  
• Brown-out reset protection (1.5V typical)  
• Serial Interface Inactive current (2.5 uA typical)  
• High-Voltage Tolerant Digital Inputs: Up to 12.5V  
• Supports Split Rail Applications  
16 15 14 13  
VDD  
SDO  
CS  
SCK  
SDI  
14  
13  
1
2
3
4
5
6
7
SCK  
SDI  
VSS  
VSS  
WP  
1
12  
11  
10  
9
12 SHDN  
NC  
2
3
4
EP  
17  
VSS  
WP  
11  
10  
9
P0B  
P0W  
P0B  
P0W  
P0A  
P1B  
P1W  
P1A  
• Internal weak pull-up on all digital inputs  
• Wide Operating Voltage:  
8
5
6
7
8
PDIP, SOIC, TSSOP  
- 2.7V to 5.5V - Device Characteristics  
Specified  
4x4 QFN*  
MCP42X2 Dual Rheostat  
- 1.8V to 5.5V - Device Operation  
• Wide Bandwidth (-3 dB) Operation:  
- 2 MHz (typical) for 5.0 kdevice  
CS  
V
DD  
1
2
10  
9
VDD  
CS  
SCK  
SDI  
10  
9
1
2
3
4
5
• Extended temperature range (-40°C to +125°C)  
SDO  
P0B  
P0W  
P1W  
SCK  
SDO  
EP  
11  
8
SDI  
VSS  
P0B  
P0W  
P1W  
3
4
8
7
6
VSS  
7
6
P1B  
P1B 5  
MSOP, DFN  
3x3 DFN*  
* Includes Exposed Thermal Pad (EP); see Table 3-1.  
© 2008 Microchip Technology Inc.  
DS22060B-page 1  

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