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CBM3232AS16

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

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CBM3232AS16

Corebai Microelectronics · RS232 ICs · SOP-16

CBM3232AS16 from Corebai Microelectronics, 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 for the first charge pump capacitor; the electrical characteristics specify C1 to C4 = 0.1 µF.
2 V+ power_out Doubled voltage terminal generated by the charge pump, limited to (VCC - 0.3) to 7 V with
3 C1- passive Negative terminal for the first charge pump capacitor; the electrical characteristics specify C1 to C4 = 0.1 µF.
4 C2+ passive Positive terminal for the second charge pump capacitor; the electrical characteristics specify C1 to C4 = 0.1 µF.
5 C2- passive Negative terminal for the second charge pump capacitor; the electrical characteristics specify C1 to C4 = 0.1 µF.
6 V- power_out Inverted voltage terminal generated by the charge pump, limited to -0.3 to -7 V with
7 T2OUT output Second RS-232 transmitter output, with a transmitter output voltage range of ±13.2 V.
8 R2IN input Second RS-232 receiver input, with a receiver input voltage range of ±25 V.
9 R2OUT output Second TTL/CMOS receiver output, limited to -0.3 V to (VCC + 0.3) V.
10 T2IN input Second transmitter logic input, with a transmitter input voltage range of -0.3 to 6 V.
11 T1IN input First transmitter logic input, with a transmitter input voltage range of -0.3 to 6 V.
12 R1OUT output First TTL/CMOS receiver output, limited to -0.3 V to (VCC + 0.3) V.
13 R1IN input First RS-232 receiver input, with a receiver input voltage range of ±25 V.
14 T1OUT output First RS-232 transmitter output, with a transmitter output voltage range of ±13.2 V.
15 GND power_in Ground reference for the device.
16 VCC power_in Supply voltage, specified for 3.3 V to 5.5 V operation with an absolute maximum of -0.3 to 6 V.

Key specifications

Parameter Value
Manufacturer Corebai Microelectronics
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
Supply Voltage VCC -0.3 6 V 3
Doubled Voltage Terminal V+ 7 V 3
Inverted Voltage Terminal V- -7 0.3 V 3
V+ + /V-/ V+ + /V-/ 13 V 3
Transmitter Input Voltage Range TIN -0.3 6 V 3
Receiver Input Voltage Range RIN -25 25 V 3
Transmitter Output Voltage Range TOUT -13.2 13.2 V 3
Receiver Output Voltage Range ROUT -0.3 V upper limit printed as (VCC + 0.3) 3
Operating Temperature Ta -40 85 ℃ 3
Storage Temperature Ts -60 150 ℃ 3
VCC Power Supply Current ISUPPLY 2.5 5 mA No load, VCC=3.3V ±10%, TA=25℃ 4
VCC Power Supply Current ISUPPLY 6 10 mA No load, VCC=5V ±10%, TA=25℃ 4
Input Logic Threshold Low VTIL 8 V T-IN (Note 1) 4
Input Logic Threshold High VTIH 2 V VCC = 3.3V 4
Input Logic Threshold High VTIH 2.4 V VCC = 5V 4
Input Leakage Current IIL -1 0.01 1 µA T-IN 4
Output Voltage Swing VTOUT -3.5 4 V VCC = 3.3V, all transmitter outputs loaded with 3KΩ to GND 4
Output Voltage Swing VTOUT -5 5.4 V VCC = 5.0V, all transmitter outputs loaded with 3KΩ to GND 4
Output Short Circuit Current ITSC -60 60 mA VCC = 3.3V to 5V, VOUT=0V 4
Receiver Input Voltage Operating Range VRIN -25 25 V 5
RS-232 Input Threshold Low VRIL 0.6 1.2 V TA = 25℃, VCC = 3.3V 5
RS-232 Input Threshold Low VRIL 0.8 1.5 V TA = 25℃, VCC = 5V 5
RS-232 Input Threshold High VRIH 1.5 2.4 V TA = 25℃, VCC = 3.3V 5
RS-232 Input Threshold High VRIH 1.8 2.4 V TA = 25℃, VCC = 5V 5
Input Hysteresis VRIHYS 0.3 V 5
Input Resistance RRIN 3 5 7 kΩ TA = 25℃ 5
TTL/CMOS Output Voltage Low VROL 0.4 V IOUT = 1.6mA VCC = 3.3V; IOUT = 3.2mA VCC = 5.5V 5
Data Transfer Rate DR 120 Kbps RL = 3KΩ, CL = 1000pF, one transmitter switching, VCC=3.3V 5
Propagation Delay Input to Output (receiver) tPHLR / tPLHR 4 9.7 µs RXIN=RXOUT, CL = 150pF 5
Propagation Delay Input to Output (transmitter) tPHLT / tPLHT 2 5 µs RL = 3KΩ, CL = 2500pF 5
Receiver Propagation Delay Difference /tPHLR - tPLHR/ 300 ns 5
Transmitter Propagation Delay Difference /tPHLT - tPLHT/ 300 ns 5
Transition Slew Rate SRT 3 30 V/μs TA = 25℃, RL = 3KΩ to 7KΩ, VCC = 3.3V, measured from +3V to -3V or -3V to +3V, CL = 150pF to 1000pF 5
Supply Voltage (recommended) VCC 3.3 5.5 V C1 - C4 = 0.1µF 4
Ambient Operating Temperature (recommended) TA -40 85 ℃ Unless otherwise specified 4

CAD (KiCad official)

  • Symbol: CBM3232AS16
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOP-16 (KiCad packages3D, STEP)
  • 3D model files: cbm3232as16-etched.step / cbm3232as16-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cbm3232as16.step / cbm3232as16.glb are the bare package body.

Provenance

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

  • Datasheet: Corebai Microelectronics datasheet (13 pp, sha256 d5e9b3ab6a2403fd, retrieved 2026-10-18, 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