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Contents

README

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PT4455

PTC Princeton Tech · RF Transceiver ICs · SOT-23-6

PT4455 from PTC Princeton Tech, in a SOT-23-6. 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 XOUT output Oscillator output pin, connected to the crystal network (X1 with C1/C2) in the application circuit.
2 VSS power_in Ground connection for the device.
3 PAOUT output Power amplifier output pin that drives the RF output stage.
4 DIN input Data input pin for OOK/ASK modulation of the transmitter.
5 VDD power_in Power supply pin; the datasheet specifies an operating range of 2.2 V to 3.6 V.
6 XIN input Oscillator input pin, connected to the crystal network in the application circuit; a parallel resistor R5 (560K) can be populated across XIN to help oscillation with high crystal ESR.

Key specifications

Parameter Value
Manufacturer PTC Princeton Tech
Package SOT-23-6
Category RF And Wireless
Pins 6

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage operation range (VDD) 2.2 3.6 V Low supply voltage, operation range (Features) 1
Transmitter frequency range 300 450 MHz PLL-based transmitter frequency range (Features) 1

CAD (KiCad official)

  • Symbol: PT4455
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: pt4455-etched.step / pt4455-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pt4455.step / pt4455.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: PTC Princeton Tech datasheet (4 pp, sha256 06c00f635e4983eb, retrieved 2026-10-19, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF