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ADM3232EARNZ

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

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ADM3232EARNZ

UMW · RS232 ICs · SOP-16

ADM3232EARNZ from UMW, in a SOP-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 of the voltage-doubler charge-pump capacitor C1.
2 V+ power_out Positive charge-pump output, +5.5V generated by the charge pump.
3 C1- passive Negative terminal of the voltage-doubler charge-pump capacitor C1.
4 C2+ passive Positive terminal of the inverting charge-pump capacitor C2.
5 C2- passive Negative terminal of the inverting charge-pump capacitor C2.
6 V- power_out Negative charge-pump output, -5.5V generated by the charge pump.
7 T2OUT output RS-232 driver output; short-circuit duration is continuous and the output is protected against short circuits to ground.
8 R2IN input RS-232 receiver input rated ±15V, with typical 300mV hysteresis; an unconnected input is pulled to a HIGH receiver output by a 5kΩ pulldown.
9 R2OUT output TTL/CMOS receiver output (inverting relative to RxIN).
10 T2IN input TTL/CMOS driver input; the driver input has no pull-up resistor, so unused inputs should be connected to VCC or GND.
11 T1IN input TTL/CMOS driver input; the driver input has no pull-up resistor, so unused inputs should be connected to VCC or GND.
12 R1OUT output TTL/CMOS receiver output (inverting relative to RxIN).
13 R1IN input RS-232 receiver input rated ±15V, with typical 300mV hysteresis; an unconnected input is pulled to a HIGH receiver output by a 5kΩ pulldown.
14 T1OUT output RS-232 driver output; short-circuit duration is continuous and the output is protected against short circuits to ground.
15 GND power_in Ground.
16 VCC power_in Supply voltage, +3.0V to +5.5V.

Key specifications

Parameter Value
Manufacturer UMW
Package SOP-16
Category Interface
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
Input Logic Threshold HIGH 2 V TxIN, EN, SHDN, Note2; VCC=3.3V 3
Input Logic Threshold HIGH 2.4 V TxIN, EN, SHDN, Note2; VCC=5V 3
Input Logic Threshold LOW 0.8 V TxIN, EN, SHDN, Note2 3
Input Leakage Current -1 0.01 1 µA TxIN, EN, SHDN, TAMB=25°C 3
Output Leakage Current (receiver outputs) -10 0.05 10 µA receivers disable 3
Output Voltage LOW 0.4 V IOUT=1.6mA 3
Output Voltage Swing -5 5.4 V 3kΩ load to ground at all driver outputs 3
Output Resistance 300 Ω VCC=V+=V-=0V, TOUT=±2V 3
Output Leakage Current (driver outputs) -25 25 µA VOUT=±12V, VCC=0V to 5.5V drivers disabled 3
Receiver Input Voltage Range -15 15 V 4
Receiver Input Hysteresis 0.3 V 4
Receiver Input Resistance 3 5 7 kΩ 4
Input Threshold LOW 0.6 0.8 V VCC=3.3V 4
Input Threshold LOW 1.2 1.5 V VCC=5V 4
Input Threshold HIGH 2.4 1.5 V VCC=3.3V 4
Input Threshold HIGH 2.4 1.8 V VCC=5V 4
Maximum Data Rate 120 235 kbps RL=3kΩ, CL=1000pF, one driver switching 4
Transition-Region Slew Rate 30 V/µs VCC=3.3V, RL=3kΩ, TAMB=25°C; measurements from -3.0V to +3.0V or +3.0V to -3.0V 4
Supply voltage VCC 3 5.5 V 6
External charge-pump capacitor 0.1 µF 12
Charge-pump capacitor voltage rating 16 V 12
VCC supply voltage VCC -0.3 6 V 2
V+ (NOTE 1) V+ -0.3 7 V NOTE 1 2
V- (NOTE 1) V- -7 0.3 V NOTE 1 2
V+ + /V-/ (NOTE 1) 13 V NOTE 1 2
ICC (DC VCC or GND current) ICC -100 100 mA 2
TxIN, EN input voltage -0.3 6 V 2
RxIN input voltage -15 15 V 2
TxOUT output voltage -15 15 V 2
RxOUT output voltage -0.3 V 2
Storage temperature -65 150 °C 2
Power dissipation per package (16-pin SOP) 1086 mW derate 13.57mW/°C above +70°C 2

CAD (KiCad official)

  • Symbol: ADM3232EARNZ
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOP-16 (KiCad packages3D, STEP)
  • 3D model files: adm3232earnz-etched.step / adm3232earnz-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); adm3232earnz.step / adm3232earnz.glb are the bare package body.

Provenance

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

  • Datasheet: UMW datasheet (20 pp, sha256 0d2eee671ed2f15f, retrieved 2026-10-17, 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