MCP4232T-502-E/ML Microchip Technology, MCP4232T-502-E/ML Datasheet - Page 31

• Manufacturer Part Number: MCP4232T-502-E/ML
• Description: Digital Potentiometer ICs Dual 7B V SPI Rheo
• Manufacturer: Microchip Technology

Specifications of MCP4232T-502-E/ML

• Number Of Pots: Dual
• Taps Per Pot: 128
• Resistance: 5 KOhms
• Wiper Memory: Volatile
• Digital Interface: Serial (SPI)
• Operating Supply Voltage: 2.5 V, 3.3 V, 5 V
• Supply Current: 1 mA
• 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
• Package / Case: QFN EP-16
• 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:
© 2007 Microchip Technology Inc.
Legend:
Note 1:
Rheo Pot
8L
—
—
—
—
—
—
—
(4)
1
2
3
4
5
6
7
8
Single
2:
3:
4:
PIN DESCRIPTIONS
8L
—
—
—
—
—
—
—
(4)
1
2
3
4
5
6
7
8
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 shut-
down 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, cus-
tomers 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
—
—
—
—
—
(4)
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
(4)
1
2
5
6
7
8
9
Pin
CS
SCK
SDI
SDI/SDO
V
P1B
P1W
P1A
P0A
P0W
P0B
SHDN
SDO
V
Exposed Pad
SS
DD
Symbol
Table
MCP413X/415X/423X/425X
(1, 3)
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
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
Note 4
Standard Function
DS22060A-page 31