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SIT3232EEAE

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SIT RS232 ICs, SSOP-16-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SIT3232EEAE

SIT · RS232 ICs · SSOP-16-208mil

SIT3232EEAE from SIT, in a SSOP-16-208mil. 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 C1+ passive Positive terminal for the first charge pump capacitor.
2 V+ power_out Doubled voltage terminal (charge pump output, up to VCC+7 V max).
3 C1- passive Negative terminal for the first charge pump capacitor.
4 C2+ passive Positive terminal for the second charge pump capacitor.
5 C2- passive Negative terminal for the second charge pump capacitor.
6 V- power_out Inverted voltage terminal (charge pump output, down to -7 V max).
7 T2OUT output Second transmitter RS-232 output, rated ±13.2 V.
8 R2IN input Second receiver RS-232 input, range ±25 V with 3 to 7 kΩ input impedance.
9 R2OUT output Second receiver logic output, -0.3 V to VCC+0.3 V.
10 T2IN input Second transmitter logic input, low level max 0.8 V and high level min 2 V.
11 T1IN input First transmitter logic input, low level max 0.8 V and high level min 2 V.
12 R1OUT output First receiver logic output, -0.3 V to VCC+0.3 V.
13 R1IN input First receiver RS-232 input, range ±25 V with 3 to 7 kΩ input impedance.
14 T1OUT output First transmitter RS-232 output, rated ±13.2 V.
15 GND power_in Ground.
16 VCC power_in Supply voltage, 3 V to 5.5 V operating, absolute max -0.3 to +6 V.

Key specifications

Parameter Value
Manufacturer SIT
Package SSOP-16-208mil
Category Interface ICs
Pins 16

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 Current with no Load Isup 2 mA VCC=3.3V, 25°C, C1-C4=1µF 3
Logic Control Low Level VTTIN_L 0.8 V T1IN,T2IN 3
Logic Control High Level VTTIN_H 2 V T1IN,T2IN 3
Input Logic Current ITIN -1 1 μA T1IN,T2IN 3
Receiver Output Logic-Low Voltage VROL 0.4 V IOUT=1.6mA, VCC=5V or 3.3V 3
Receiver Input Range VRIN -25 25 V 4
Receiver Input Low Threshold (3.3V) VRIL 0.6 1.1 V VCC=3.3V 4
Receiver Input Low Threshold (5V) VRIL 0.8 1.5 V VCC=5V 4
Receiver Input High Threshold (3.3V) VRIH 1.5 2.4 V VCC=3.3V 4
Receiver Input High Threshold (5V) VRIH 1.9 2.4 V VCC=5V 4
Receiver Input Hysteresis 0.4 V 4
Receiver Input Impedance RRIN 3 5 7 kΩ 4
Transmitter Output Swing VTOUT 4 5 V All transmitter outputs loaded with 3kΩ to ground (printed ±) 4
Transmitter Output Impedance RTOUT 300 Ω VCC=0V, Transmitter Input=±2V 4
Transmitter Short-Circuit Current Itsc 60 mA 4
ESD HBM 15 KV R1IN,R2IN,T1OUT,T2OUT; HBM (printed ±15) 5
ESD Air Discharge 15 KV R1IN,R2IN,T1OUT,T2OUT (printed ±15) 5
ESD Contact Discharge 8 KV R1IN,R2IN,T1OUT,T2OUT (printed ±8) 5
Rate Speed 120 kbps RL=3kΩ, CL=1000pF 5
Receiver Propagation delay tRPHL tRPHL 300 ns CL=150pF 5
Receiver Propagation delay tRPLH tRPLH 300 ns CL=150pF 5
Receiver skew /tRPHL-tRPLH/ 150 ns CL=150pF 5
Transmitter skew /tTPHL-tTPLH/ 150 ns 5
Transmitter Slew Rate SR 4 30 V/μs RL=3kΩ7kΩ, CL=150pF1000pF, from -3.0V3.0V or 3.0V-3.0V 5
Supply voltage VCC -0.3 6 V 2
Doubled Voltage Terminal V+ 7 V printed VCC-0.3~+7 2
Inverted Voltage Terminal V- -7 0.3 V printed +0.3~-7 2
V+ + /V-/ 13 V 2
Transmitter Input Voltage Range T1IN,T2IN -0.3 6 V 2
Receiver Input Voltage Range R1IN,R2IN -25 25 V 2
Transmitter Output Voltage Range T1OUT,T2OUT -13.2 13.2 V 2
Operating Temperature -40 85 °C 2
Storage Temperature -60 150 °C 2
Soldering Temperature 300 °C 2
Supply voltage range VCC 3 5.5 V Features list 1

CAD (KiCad official)

  • Symbol: SIT3232EEAE
  • Footprint: Package_SO:SSOP-16_5.3x6.2mm_P0.65mm
  • 3D model: SSOP-16-208mil (KiCad packages3D, STEP)
  • 3D model files: sit3232eeae-etched.step / sit3232eeae-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sit3232eeae.step / sit3232eeae.glb are the bare package body.

Provenance

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

  • Datasheet: SIT datasheet (12 pp, sha256 2714c7267d52ec1d, retrieved 2026-10-22, 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