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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.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownCBM3232AS16
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cbm3232as16.step/cbm3232as16.glbare 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, primaryclaude-haiku-5-5(text), consensusclaude-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).