component
RF430CL331HIRGTR
Public Made by Adomby adom
Texas Instruments RFID ICs, QFN-16-EP(3x3). 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
markdownRF430CL331HIRGTR
Texas Instruments · RFID ICs · QFN-16-EP(3x3)
RF430CL331HIRGTR from Texas Instruments, in a QFN-16-EP(3x3). 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 | ANT1 | input | RF antenna input 1 for AC-coupled connection to resonant LC antenna circuit. |
| 2 | ANT2 | input | RF antenna input 2 for AC-coupled connection to resonant LC antenna circuit. |
| 3 | RST | input | Reset input active-low with integrated 20-35 kΩ pullup resistor; held low for minimum one clock cycle to initiate device reset. |
| 4 | E0 | input | I2C address select pin 0; sets bit 0 of the programmable 7-bit slave address. |
| 5 | E1 | input | I2C address select pin 1; sets bit 1 of the programmable 7-bit slave address. |
| 6 | E2 | input | I2C address select pin 2; sets bit 2 of the programmable 7-bit slave address. |
| 7 | INTO | output | Interrupt output pin signaling enabled interrupt events; configurable active-high or active-low via General Control register. |
| 8 | I2C_READY | output | Status output; high level indicates I2C communication can be started, low level prohibits new I2C communication. |
| 9 | I2C_SIGNAL | output | Status output; low indicates wait-time-extension command is automatically being sent, I2C communication may continue. |
| 10 | SCL | bidirectional | I2C clock line with open-drain output; external pullup resistor required, supports clock stretching up to 400 kHz when master supports it. |
| 11 | SDA | bidirectional | I2C data line with open-drain output; external pullup resistor required, maximum write frequency 120 kHz and read frequency 100 kHz when device is addressed. |
| 12 | VCORE | power_out | Regulated 1.8 V core supply output for internal die circuitry; requires 0.1-0.47 µF decoupling capacitor. |
| 13 | VSS | power_in | Ground supply at 0 V reference potential. |
| 14 | NC | unconnected | No-connect pin, leave unconnected on printed circuit board. |
| 15 | VCC | power_in | 3.3 V primary supply input; operating range 3.0-3.6 V without RF field, 2.0-3.6 V with RF field present. |
| 16 | NC | unconnected | No-connect pin, leave unconnected on printed circuit board. |
| 17 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | QFN-16-EP(3x3) |
| Category | RF And Wireless |
| Pins | 17 |
CAD (KiCad official)
- Symbol:
RF430CL331HIRGTR - Footprint:
Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm - 3D model: QFN-16-EP(3x3) (KiCad packages3D, STEP)
- 3D model files:
rf430cl331hirgtr-etched.step/rf430cl331hirgtr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);rf430cl331hirgtr.step/rf430cl331hirgtr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (63 pp, sha256
78d8ec602eefb231, retrieved 2026-09-27, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).