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ST202BDR

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

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ST202BDR

STMicroelectronics · RS232 ICs · SO-16

ST202BDR from STMicroelectronics, in a SO-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 C1+ passive Positive terminal for the first charge pump capacitor.
2 V+ power_out Doubled voltage terminal generated by the charge pump (absolute maximum (VCC - 0.3) to 13.2 V).
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 generated by the charge pump (absolute maximum 0.3 to -13.2 V).
7 T2OUT output Second transmitter RS-232 output with ±15 V absolute maximum range and infinite short-circuit duration.
8 R2IN input Second receiver RS-232 input with ±30 V operating range and 3 to 7 kΩ input resistance.
9 R2OUT output Second receiver TTL/CMOS output, range -0.3 to (VCC + 0.3) V.
10 T2IN input Second transmitter TTL/CMOS input, range -0.3 to (VCC + 0.3) V.
11 T1IN input First transmitter TTL/CMOS input, range -0.3 to (VCC + 0.3) V.
12 R1OUT output First receiver TTL/CMOS output, range -0.3 to (VCC + 0.3) V.
13 R1IN input First receiver RS-232 input with ±30 V operating range and 3 to 7 kΩ input resistance.
14 T1OUT output First transmitter RS-232 output with ±15 V absolute maximum range and infinite short-circuit duration.
15 GND power_in Ground.
16 VCC power_in Supply voltage, 4.5 to 5.5 V operating, absolute maximum -0.3 to 6 V.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package SO-16
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 voltage range VCC 4.5 5.5 V Features 1
Operating temperature range -40 85 °C ST202BDR order code 16
Supply voltage VCC -0.3 6 V 4
Extra positive voltage V+ 13.2 V (VCC, 0.3) to 13.2 4
Extra negative voltage V- -13.2 0.3 V printed 0.3 to -13.2 4
Transmitter input voltage range TIN -0.3 V -0.3 to (VCC + 0.3) 4
Receiver input voltage range RIN -30 30 V ± 30 4
Transmitter output voltage range TOUT -15 15 V ± 15 4
Receiver output voltage range ROUT -0.3 V -0.3 to (VCC + 0.3) 4
VCC power supply current ISUPPLY 1.5 4 mA No load 5
Transmitter output voltage swing VTOUT -5 9 V All transmitter outputs are loaded with 3 kΩ to GND 5
Logic pull-up current ITIL 5 40 µA TIN = 0 V 5
Input logic threshold low VTIL 0.8 1.4 V 5
Input logic threshold high VTIH 1.4 2 V 5
Transition slew rate SRT 6 12 30 V/µs TA = 25 °C, VCC = 5 V, RL = 3 to 7 kΩ, CL = 50 to 2500 pF 5
Data rate DR 200 400 kbits/s One transmitter output loaded with RL = 3 kΩ to 7 kΩ, CL = 50 to 1000 pF 5
Transmitter output resistance RTOUT 300 Ω VCC = V+ = V- = 0 V, VOUT = ± 2 V 5
Transmitter output short circuit current ISC 22 mA One TXOUT to GND 5
Transmitter propagation delay time tDT 1.3 3.5 µs TTL-CMOS IN to RS-232 OUT, CL = 150 pF (50 % to 50 %) 5
Receiver input voltage operating range VRIN -30 30 V 6
RS-232 input resistance RRIN 3 5 7 kΩ TA = 25 °C 6
RS-232 input threshold low VRIL 0.8 1.3 V 6
RS-232 input threshold high VRIH 1.8 2.4 V 6
RS-232 input hysteresis VRIHYS 0.2 0.5 1 V VCC = 5 V 6
TTL/CMOS output voltage low VROL 0.2 0.4 V IOUT = 3.2 mA (to VCC) 6
TTL/CMOS output voltage high VROH 3.5 V IOUT = 1 mA (to GND); typ printed VCC - 0.2 6
Receiver output short circuit current to GND ISCR 2 10 mA To GND 6
Receiver output short circuit current to VCC ISCR 10 30 mA To VCC 6
Receiver propagation delay time tDR 0.1 0.5 µs CL = 150 pF, RS-232 in to TTL-CMOS out (50 % to 50 %) 6

CAD (KiCad official)

  • Symbol: ST202BDR
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SO-16 (KiCad packages3D, STEP)
  • 3D model files: st202bdr-etched.step / st202bdr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); st202bdr.step / st202bdr.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (18 pp, sha256 17760c91a40e8faf, retrieved 2026-10-26, 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