component

SN65C3221IPWRQ1

Public Made by Adom

by adom

Texas Instruments Pre-ordered Chips, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentinterface icssn65c3221ipwrq1factory-2.0.0extractor-text

Verified SN65C3221IPWRQ1

by Ray · last 31 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

31 Oct 2026RayPublished by the parts factory: tier mfr, 16 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: SN65C3221IPWRQ1 · TSSOP-16 · 16 pins
  • ✓copper: 16 copper pads, none touching another net
  • ✓datasheet: all 16 pin names found in the 18-page datasheet
  • ✓distributor: lcsc C2671377, digikey 296-23176-2-ND, mouser 595-SN65C3221IPWRQ1
  • ✓family: TSSOP-16_4.4x5mm_P0.65mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-haxyx2ry/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • ✓package_fit: height and body within the datasheet's package drawing (datasheet p.15)
  • ✓pads: 16 pins = 16 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 16 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ sn65c3221ipwrq1.kicad_sym✓ sn65c3221ipwrq1.kicad_mod✓ sn65c3221ipwrq1.step
Spot something wrong? Report it as an issue Propose a fix Records are signed by members of adom.
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 9d ago
viewers sn65c3221ipwrq1: viewers · Ray 9d ago
package.json Publish 0.1.0 · Ray 9d ago
page.json Set visibility: public · Ray 9d ago
README.md Publish 0.1.0 · Ray 9d ago
sn65c3221ipwrq1-etched.glb Publish 0.1.0 · Ray 9d ago
sn65c3221ipwrq1-etched.step sn65c3221ipwrq1: factory component page (tier=mfr) · Ray 9d ago
sn65c3221ipwrq1-hero.glb sn65c3221ipwrq1: hero GLB from the etched model (keeps the MPN mark) · Ray 9d ago
sn65c3221ipwrq1-hero.overlay.json Publish 0.1.0 · Ray 9d ago
sn65c3221ipwrq1.glb Publish 0.1.0 · Ray 9d ago
sn65c3221ipwrq1.kicad_mod Publish 0.1.0 · Ray 9d ago
sn65c3221ipwrq1.kicad_sym Publish 0.1.0 · Ray 9d ago
sn65c3221ipwrq1.lbr Publish 0.1.0 · Ray 9d ago
sn65c3221ipwrq1.step Publish 0.1.0 · Ray 9d ago
verification.json Verified: Published by the parts factory: tier mfr, 16 pins · Ray 9d ago

SN65C3221IPWRQ1

Texas Instruments · Pre-ordered Chips · TSSOP-16

SN65C3221IPWRQ1 from Texas Instruments, in a TSSOP-16. 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 EN input Receiver enable control input (VIH 2 V min at 3.3 V, 2.4 V min at 5 V; VIL 0.8 V max); low enables ROUT, high puts ROUT in high impedance.
2 C1+ passive Positive terminal of charge-pump capacitor C1 (0.1 µF for VCC = 3.3 V ± 0.3 V, 0.047 µF for 5 V ± 0.5 V).
3 V+ power_out Positive charge-pump output supply for RS-232 drivers, with capacitor C3 to VCC or GND; absolute maximum 7 V.
4 C1− passive Negative terminal of charge-pump capacitor C1 (0.1 µF for VCC = 3.3 V ± 0.3 V, 0.047 µF for 5 V ± 0.5 V).
5 C2+ passive Positive terminal of charge-pump capacitor C2 (0.1 µF at 3.3 V, 0.33 µF at 5 V).
6 C2− passive Negative terminal of charge-pump capacitor C2 (0.1 µF at 3.3 V, 0.33 µF at 5 V).
7 V− power_out Negative charge-pump output supply for RS-232 drivers, with capacitor C4 to GND; absolute maximum −7 V.
8 RIN input RS-232 receiver input with 5 kΩ nominal input resistance, ±25 V input range and ±15 kV HBM ESD protection.
9 ROUT output Logic-level receiver output, high impedance when EN is high; VOH of VCC−0.6 V min at −1 mA.
10 INVALID output Valid-signal output, high when receiver input is above 2.7 V or below −2.7 V (or within ±0.3 V for less than 30 µs) and low when between −0.3 V and 0.3 V for more than 30 µs.
11 DIN input Logic-level driver input (VIH 2 V min at 3.3 V, 2.4 V min at 5 V; VIL 0.8 V max), accepts 5.5 V maximum.
12 FORCEON input Logic input that with FORCEOFF high disables auto-powerdown when high; auto-powerdown functions when FORCEON is low.
13 DOUT output RS-232 driver output with ±15 kV HBM ESD protection, ±5 V minimum swing into 3 kΩ and high impedance when powered off.
14 GND power_in Ground reference for all voltages.
15 VCC power_in Supply voltage input, 3 V to 5.5 V operation with 0.1 µF bypass capacitor.
16 FORCEOFF input Logic input that shuts off driver and charge pump when low (supply current reduced to 1 µA with EN high); high enables operation with auto-powerdown.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TSSOP-16
Category Interface ICs
Pins 16

CAD (KiCad official)

  • Symbol: SN65C3221IPWRQ1
  • Footprint: Package_SO:TSSOP-16_4.4x5mm_P0.65mm
  • 3D model: TSSOP-16 (KiCad packages3D, STEP)
  • 3D model files: sn65c3221ipwrq1-etched.step / sn65c3221ipwrq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn65c3221ipwrq1.step / sn65c3221ipwrq1.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (18 pp, sha256 58557f6d20cfa0e3, retrieved 2026-10-31, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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