MCP4161-502E/MF Microchip Technology, MCP4161-502E/MF Datasheet - Page 39
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MCP4161-502E/MF
Manufacturer Part Number
MCP4161-502E/MF
Description
IC POT DGTL SNGL 5K SPI 8DFN
Manufacturer
Microchip Technology
Specifications of MCP4161-502E/MF
Package / Case
8-DFN
Taps
257
Resistance (ohms)
5K
Number Of Circuits
1
Temperature Coefficient
150 ppm/°C Typical
Memory Type
Non-Volatile
Interface
SPI Serial
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Resistance In Ohms
5K
Number Of Pots
Single
Taps Per Pot
256
Resistance
5 KOhms
Wiper Memory
Non Volatile
Digital Interface
Serial (4-Wire, SPI)
Operating Supply Voltage
2.5 V, 3.3 V, 5 V
Supply Current
550 uA
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Supply Voltage (max)
5.5 V
Supply Voltage (min)
1.8 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
6.0
The MCP4XXX 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
FIGURE 6-1:
© 2007 Microchip Technology Inc.
Typical SPI Interface Connections
Alternate MCP41X1 SPI Interface Connections (Host Controller Firmware SPI)
SERIAL INTERFACE (SPI)
Typical MCP41X1 SPI Interface Connections (Host Controller Hardware SPI)
Note 1: If High voltage commands are desired, some type of external circuitry needs to be
Controller
Controller
Controller
implemented.
Typical SPI Interface Block Diagram.
Host
Host
Host
(SDO/SDI)
(SCK)
I/O
I/O
I/O
I/O
SDO
SDO
SDI
SDI
SCK
SCK
I/O
(1)
(1)
(1)
( Master Out - Slave In (MOSI) )
( Master In - Slave Out (MISO) )
MCP414X/416X/424X/426X
200 kΩ
Typical SPI Interfaces are shown in
SPI 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
The SPI mode is determined by the state of the SCK
pin (V
inactive (V
All SPI interface signals are high-voltage tolerant.
IH
or V
IH
IL
) to active (V
) on the when the CS pin transitions from
IL
SDI/SDO
SDI/SDO
SCK
SCK
or V
SDI
SCK
CS
SDO
CS
CS
MCP41X1
MCP4XXX
MCP41X1
IHH
).
DS22059A-page 39
Figure
0,0
SDI
SDO
SDI
SDO
6-1. In the
and
1,1
.