STMicroelectronics STMPE321QTR Sensor, Capacitive Touch
IC CTLR TOUCH KEY 3CH 12-QFN
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
STMPE321QTR
Detailed Description
IC CTLR TOUCH KEY 3CH 12-QFN
Package
12-UFQFN
Key Features
Package / Case: 12-UFQFN; Mounting Type: Surface Mount
Lifecycle Status
Obsolete
RoHS State
RoHS Compliant
Datasheet
STMPE321QTR Datasheet
Quick Jump:
Technical Specifications
STMicroelectronics STMPE321QTR Sensor, Capacitive Touch technical specifications.
General
Interface
I²C
Package / Case
12-UFQFN
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C
Supply Voltage
1.65V ~ 1.95V
Current Supply
280µA
Type
Buttons
Resolution
7 b
Number of Inputs
3
Proximity Detection
No
Alternate Parts Comparison (STMPE321QTR vs STMPE1801BJR vs STMPE1600QTR vs STMPE1601TBR)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 12-UFQFN | 25-WFBGA, WLCSP | 24-VFQFN Exposed Pad | 25-TFBGA |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Supply Voltage | 1.65V ~ 1.95V | 1.65V ~ 3.6V | 1.65V ~ 3.6V | 1.65V ~ 3.6V |
| Interface | I²C | I²C | I²C | I²C |
| Current Output Source Sink | -- | 4mA | 4mA | 4mA |
| Features | -- | Keypad Controller, POR | POR | Keypad Controller, POR, PWM |
| Interrupt Output | -- | Yes | Yes | Yes |
| Max Frequency | -- | 400 kHz | 400 kHz | 400 kHz |
| Number of I/O | -- | 18 | 16 | 16 |
| Output Type | -- | Push-Pull | Open Drain | Open Drain |
| Action |
More Parts in Capacitive Touch Sensor Interfaces
Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.