component
PIC12LF1840T39AT-I
Public Made by Adomby adom
Microchip Tech RF Transceiver ICs, TSSOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownPIC12LF1840T39AT-I
Microchip Tech · RF Transceiver ICs · TSSOP-14
PIC12LF1840T39AT-I from Microchip Tech, in a TSSOP-14. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VDD | power_in | Device supply pin; the datasheet states 1.8V-3.6V operation for the device. |
| 2 | RA5 | bidirectional | General-purpose I/O RA5 with 25 mA sink/source, programmable weak pull-up and interrupt-on-change; alternate functions include OSC1/CLKIN, T1CKI, T1OSI, CCP1/P1A and EUSART RX/DT selectable via APFCON. |
| 3 | RA4 | bidirectional | General-purpose I/O RA4 with 25 mA sink/source, programmable weak pull-up and interrupt-on-change; alternate functions include AN3, OSC2/CLKOUT, T1G, MSSP SDO and EUSART TX/CK selectable via APFCON. |
| 4 | RA3 | input | Input pin RA3 shared with MCLR/VPP, providing the master clear function and the programming voltage VPP; it also offers interrupt-on-change. |
| 5 | VDDRF | power_in | RF transmitter supply pin; the datasheet gives no voltage limit for this pin. |
| 6 | CTRL | input | RF transmitter CTRL pin; the datasheet gives no pin-level electrical limit for it. |
| 7 | RFOUT | output | RF transmitter output pin, with +10 dBm or 0 dBm configurable output power. |
| 8 | VSSRF | power_in | RF transmitter ground pin; the datasheet gives no pin-level electrical limit for it. |
| 9 | DATA | input | RF transmitter DATA pin; the transmitter supports FSK up to 100 kbps and OOK up to 10 kbps, but no pin-level limit is stated. |
| 10 | XTAL | passive | RF crystal connection pin XTAL; the datasheet gives no pin-level electrical limit for it. |
| 11 | RA2 | bidirectional | General-purpose I/O RA2 with 25 mA sink/source, programmable weak pull-up and interrupt-on-change; alternate functions include AN2, CPS2, C1OUT, SRQ, T0CKI, CCP1/P1A, FLT0 and MSSP SDA/SDI/INT. |
| 12 | RA1 | bidirectional | General-purpose I/O RA1 with 25 mA sink/source, programmable weak pull-up and interrupt-on-change; alternate functions include AN1, VREF, CPS1, C1IN0-, SRI, EUSART RX/DT, MSSP SCL/SCK and ICSPCLK. |
| 13 | RA0 | bidirectional | General-purpose I/O RA0 with 25 mA sink/source, programmable weak pull-up and interrupt-on-change; alternate functions include AN0, DACOUT, CPS0, C1IN+, MDOUT and ICSPDAT/ICDDAT. |
| 14 | VSS | power_in | Ground reference pin for the device logic and I/O. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | TSSOP-14 |
| Category | Radio Frequency Chip/Antenna |
| Pins | 14 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Operating voltage | 1.8 | 3.6 | V | 1 | |||
| Operating clock frequency | 32 | MHz | Oscillator/clock input | 1 | |||
| Precision internal oscillator calibration tolerance | -1 | 1 | % | Factory calibrated, typical | 1 | ||
| Standby current | 30 | nA | @ 3.0V, typical, RF off | 1 | |||
| Standby current RF Sleep | 530 | nA | @ 3.0V, typical, RF Sleep | 1 | |||
| Operating current | 0.67 | mA | @ 8 MHz, 3.0V, RF off, typical | 1 | |||
| Operating current RF on 0 dBm | 9.67 | mA | @ 8 MHz, 3.0V, RF on at 0 dBm, typical | 1 | |||
| Operating current RF on +10 dBm | 15.67 | mA | @ 8 MHz, 3.0V, RF on at +10 dBm, typical | 1 | |||
| Low-power watchdog timer current | 500 | nA | @ 3.0V, typical | 1 |
CAD (KiCad official)
- Symbol:
PIC12LF1840T39AT-I - Footprint:
Package_SO:TSSOP-14_4.4x5mm_P0.65mm - 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files:
pic12lf1840t39at-i-etched.step/pic12lf1840t39at-i-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);pic12lf1840t39at-i.step/pic12lf1840t39at-i.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (6 pp, sha256
dd51fa507a1c3326, retrieved 2026-11-02, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).