Microchip Technology TSSOP20EV 데이터 시트

© 2009 Microchip Technology Inc.

DS22233A-page 1

• Quad Resistor Network 
• Potentiometer or Rheostat configuration options
• Resistor Network Resolution

- 7-bit: 128 Resistors (129 Taps)
- 8-bit: 256 Resistors (257 Taps)

• R

AB

 Resistances options of:

- 5 k

Ω

- 10 k

Ω

- 50 k

Ω

- 100 k

Ω

• Zero Scale to Full Scale Wiper operation
• Low Wiper Resistance: 75

Ω (typical)

• Low Tempco:

- Absolute (Rheostat): 50 ppm typical

(0°C to 70°C) 

- Ratiometric (Potentiometer): 15 ppm typical

• Non-volatile Memory

- Automatic Recall of Saved Wiper Setting
- WiperLock™ Technology 

• SPI serial interface (10 MHz, modes 0,0 & 1,1) 

- High-Speed Read/Writes to wiper registers
- Read/Write to Data EEPROM registers
- Serially enabled EEPROM write protect

• Resistor Network Terminal Disconnect Feature 

via Terminal Control (TCON) Register 

• Reset input pin

• Write Protect Feature: 

- Hardware Write Protect (WP) Control pin 
- Software Write Protect (WP) Configuration bit 

• 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 
• Internal weak pull-up on all digital inputs 
• Wide Operating Voltage: 

- 2.7V to 5.5V - Device Characteristics 

Specified

- 1.8V to 5.5V - Device Operation

• Wide Bandwidth (-3 dB) Operation: 

- 2 MHz (typical) for 5.0 k

Ω device 

• Extended temperature range (-40°C to +125°C)

MCP43X1 Quad Potentiometers

TSSOP 

1

2

3

4

14

15

17

18

P2A 

P2W

4x4 QFN 

6

7

8

9

12

13

RESET 

SDO 

WP 

P0

A

P1

A

P1

W

SDI

P3B

SCK

CS

19

20

P1

B

P3A

P3W

V

DD

 

MCP43X2 Quad Rheostat

TSSOP

5

V

SS

10

P0

W

11

P0B

16

P2B

1
2
3
4

17

18

19

20

RESET

SDO

WP

V

DD

5
6
7

14

15

16

P0W

P0B

P0A

P1A

P1W

P1B

V

SS

CS

SDI

SCK

8
9
10

P3B

P3W

P3A

12

12

P2W

P2A

P2B

11

1
2
3
4

11

12

13

14

P0B

SDO

P0W

V

DD

5
6
7

8

9

10

P2W

P1W

P2B

P3B

P3W

P1B

V

SS

CS

SDI

SCK

EP

21