MCP4131-103E/SN Microchip Technology, MCP4131-103E/SN Datasheet - Page 31

• Manufacturer Part Number: MCP4131-103E/SN
• Description: IC POT DGTL SNGL 10K SPI 8SOIC
• Manufacturer: Microchip Technology

Specifications of MCP4131-103E/SN

• Taps: 129
• Resistance (ohms): 10K
• Number Of Circuits: 1
• 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: 8-SOIC (3.9mm Width)
• Resistance In Ohms: 10K
• End To End Resistance: 10kohm
• No. Of Steps: 129
• Resistance Tolerance: ± 20%
• Supply Voltage Range: 1.8V To 5.5V
• Control Interface: Serial, SPI
• No. Of Pots: Single
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3.0
The descriptions of the pins are listed in
Additional descriptions of the device pins follows.
TABLE 3-1:
© 2008 Microchip Technology Inc.
Legend:
Note 1:
Rheo Pot
8L
—
—
—
—
—
—
—
1
2
3
4
5
6
7
8
9
Single
2:
3:
4:
PIN DESCRIPTIONS
8L
—
—
—
—
—
—
—
1
2
3
4
5
6
7
8
9
The 8-lead Single Potentiometer devices are pin limited so the SDO pin is multiplexed with the SDI pin
(SDI/SDO pin). After the Address/Command (first 6-bits) are received, If a valid Read command has been
requested, the SDO pin starts driving the requested read data onto the SDI/SDO pin.
The pin’s “smart” pull-up shuts off while the pin is forced low. This is done to reduce the standby and
shutdown current.
The SDO is an open drain output, which uses the internal “smart” pull-up. The SDI input data rate can be
at the maximum SPI frequency. the SDO output data rate will be limited by the “speed” of the pull-up,
customers can increase the rate with external pull-up resistors.
The DFN and QFN packages have a contact on the bottom of the package. This contact is conductively
connected to the die substrate, and therefore should be unconnected or connected to the same ground as
the device’s V
(1)
HV w/ST = High Voltage tolerant input (with Schmidtt trigger input)
A = Analog pins (Potentiometer terminals)
O = digital output
P = Power
Rheo
10L
PINOUT DESCRIPTION FOR THE MCP413X/415X/423X/425X
10
—
—
—
—
—
11
1
2
3
4
5
6
7
8
9
Dual
14L
SS
10
12
13
14
11
—
—
1
2
3
4
5
6
7
8
9
pin.
Pot
11,12 NC
16L
3, 4
16
—
10
13
14
15
17
1
2
5
6
7
8
9
Pin
CS
SCK
SDI
SDI/SDO
V
P1B
P1W
P1A
P0A
P0W
P0B
SHDN
SDO
V
EP
SS
DD
Symbol
Table
MCP413X/415X/423X/425X
3-1.
I/O
I/O
—
—
—
—
O
A
A
A
A
A
A
I
I
I
I
HV w/ST
HV w/ST
HV w/ST
HV w/ST
HV w/ST
Analog
Analog
Analog
Analog
Analog
Analog
Buffer
Type
—
—
O
P
P
I = digital input (high Z)
I/O = Input / Output
down
Pull-up/
“smart”
“smart”
“smart”
“smart”
“smart”
Weak
No
No
No
No
No
No
No
—
—
—
—
(2)
Hardware Shutdown
SPI Chip Select Input
SPI Clock Input
SPI Serial Data Input
SPI Serial Data Input/Output
(Note 1, Note 3)
Ground
Potentiometer 1 Terminal B
Potentiometer 1 Wiper Terminal
Potentiometer 1 Terminal A
Potentiometer 0 Terminal A
Potentiometer 0 Wiper Terminal
Potentiometer 0 Terminal B
SPI Serial Data Out
Positive Power Supply Input
No Connection
Exposed Pad (Note 4)
Standard Function
DS22060B-page 31