MCP433X Datasheet, PDF (1/88 Pages) Microchip Technology – 7/8-Bit Quad SPI Digital POT with Volatile Memory

MCP433X/435X
7/8-Bit Quad SPI Digital POT with Volatile Memory
Features
• 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
- 10 k
- 50 k
- 100 k
• Zero Scale to Full Scale Wiper Operation
• Low Wiper Resistance: 75  (typical)
• Low Tempco:
- Absolute (Rheostat): 50 ppm typical
(0°C to 70°C)
- Ratiometric (Potentiometer): 15 ppm typical
• SPI Serial Interface (10 MHz, Modes 0,0 and 1,1):
- High-Speed Read/Writes to wiper registers
• Resistor Network Terminal Disconnect Feature
via Terminal Control (TCON) Register
• Reset Input Pin
• Brown-out Reset Protection (1.5V typical)
• Serial Interface Inactive Current (2.5 µA 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 device
• Extended Temperature Range (-40°C to +125°C)
Package Types (Top View)
MCP43X1 Quad Potentiometers
TSSOP
P3A 1
P3W 2
P3B 3
CS 4
SCK 5
SDI 6
V_SS 7
P1B 8
P1W 9
P1A 10
20 ^P2A
19 P2W
18 P2B
17 V_DD
16 SDO
15 RESET
14 NC
13 ^P0B
12 P0W
11 ^P0A
MCP43X1 Quad Potentiometers
4x4 QFN*
P3B 1 ^{20 19 18 17 16 15 VDD}
CS 2
14 SDO
SCK 3
SDI 4
EP
21
13 RESET
12 NC
V_{SS 5}
11 P0B
6 7 8 9 10
MCP43X2 Quad Rheostat
TSSOP
P3W 1
P3B 2
CS 3
SCK 4
SDI 5
V_SS 6
P1B 7
14 P2W
13 P2B
12 V_DD
11 SDO
10 P0B
9 P0W
8 P1W
* Includes Exposed Thermal Pad (EP); see Table 3-1.
 2010 Microchip Technology Inc.
DS22242A-page 1