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ICL3221ECVZ

Public Made by Adom

by adom

RENESAS RS232 ICs, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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ICL3221ECVZ

RENESAS · RS232 ICs · TSSOP-16

ICL3221ECVZ from RENESAS, 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 Active low receiver enable control.
2 C1+ passive External capacitor (voltage doubler) is connected to this lead.
3 V+ power_out Internally generated positive transmitter supply (+5.5V).
4 C1- passive External capacitor (voltage doubler) is connected to this lead.
5 C2+ passive External capacitor (voltage inverter) is connected to this lead.
6 C2- passive External capacitor (voltage inverter) is connected to this lead.
7 V- power_out Internally generated negative transmitter supply (-5.5V).
8 R1IN input ±15kV ESD protected, RS-232 compatible receiver input.
9 R1OUT output TTL/CMOS level receiver output.
10 INVALID output Active low output that indicates no valid RS-232 levels are present on any receiver input.
11 T1IN input TTL/CMOS compatible transmitter input.
12 FORCEON input Active high input to override automatic power-down circuitry, which keeps transmitters active (FORCEOFF must be high).
13 T1OUT output ±15kV ESD protected, RS-232 level (nominally ±5.5V) transmitter output.
14 GND power_in Ground connection.
15 VCC power_in System power supply input (3.0V to 5.5V).
16 FORCEOFF input Active low to shut down transmitters and on-chip power supply, which overrides any automatic circuitry and FORCEON.

Key specifications

Parameter Value
Manufacturer RENESAS
Package TSSOP-16
Category Communication Interface Chip
Pins 16

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin C2- External capacitor (voltage inverter) is connected to this lead TIN TTL/CMOS compatible transmitter inputs 10

CAD (KiCad official)

  • Symbol: ICL3221ECVZ
  • Footprint: Package_SO:TSSOP-16_4.4x5mm_P0.65mm
  • 3D model: TSSOP-16 (KiCad packages3D, STEP)
  • 3D model files: icl3221ecvz-etched.step / icl3221ecvz-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); icl3221ecvz.step / icl3221ecvz.glb are the bare package body.

Provenance

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

  • Datasheet: RENESAS datasheet (39 pp, sha256 d263fc23b7ec8030, retrieved 2026-10-23, tier: lcsc)
  • 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