MCP4332-503E/ST Microchip Technology, MCP4332-503E/ST Datasheet - Page 47

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MCP4332-503E/ST

Manufacturer Part Number
MCP4332-503E/ST
Description
IC DGTL POT QUAD 50K 14TSSOP
Manufacturer
Microchip Technology
Datasheet

Specifications of MCP4332-503E/ST

Taps
129
Resistance (ohms)
50K
Number Of Circuits
4
Temperature Coefficient
150 ppm/°C Typical
Memory Type
Volatile
Interface
SPI Serial
Voltage - Supply
1.8 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
14-TSSOP
Resistance In Ohms
50K
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
6.0
SERIAL INTERFACE (SPI)
The MCP43XX devices support the SPI serial protocol.
This SPI operates in the Slave mode (does not
generate the serial clock).
The SPI interface uses up to four pins. These are:
• CS – Chip Select
• SCK – Serial Clock
• SDI – Serial Data In
• SDO – Serial Data Out
Typical SPI Interface Connections
Host
Controller
SDO
SDI
SCK
(1)
I/O
Note 1: If high voltage commands are desired, some type of external circuitry needs to be implemented.
FIGURE 6-1:
Typical SPI Interface Block Diagram.
 2010 Microchip Technology Inc.
MCP433X/435X
Typical SPI Interface is shown in
interface, the Master’s Output pin is connected to the
Slave’s Input pin and the Master’s Input pin is
connected to the Slave’s Output pin.
The MCP4XXX SPI’s module supports two (of the four)
standard SPI modes. These are Mode 0,0 and 1,1. The
SPI mode is determined by the state of the SCK pin
(V
or V
) on the when the CS pin transitions from
IH
IL
inactive (V
) to active (V
IH
All SPI interface signals are high-voltage tolerant.
(Master Out – Slave In (MOSI))
(Master In – Slave Out (MISO))
Figure
6-1. In the SPI
or V
).
IL
IHH
MCP4XXX
SDI
SDO
SCK
CS
DS22242A-page 47

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