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MAX232CPE

Public Made by Adom

by adom

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

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MAX232CPE

lingxingic · RS232 ICs · DIP-16

MAX232CPE from lingxingic, in a DIP-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 plate of charge-pump capacitor C1; the MAX232 charge pump needs four external 0.2 µF capacitors (C1 to C4).
2 V+ power_out Charge-pump positive supply output; limited to −0.3 V to +7 V, with
3 C1- passive Negative plate of charge-pump capacitor C1.
4 C2+ passive Positive plate of charge-pump capacitor C2.
5 C2- passive Negative plate of charge-pump capacitor C2.
6 V- power_out Charge-pump negative supply output; limited to −7 V to −0.3 V.
7 TOUT2 output Channel 2 RS-232 driver output; driver output voltage limited to −13.2 V to +13.2 V.
8 RIN2 input Channel 2 RS-232 receiver input; input voltage range is −15 V to +15 V.
9 ROUT2 output Channel 2 receiver output; output range is −0.3 V to VCC + 0.3 V.
10 TIN2 input Channel 2 driver input; absolute maximum input voltage is −0.3 V to +6 V.
11 TIN1 input Channel 1 driver input; absolute maximum input voltage is −0.3 V to +6 V.
12 ROUT1 output Channel 1 receiver output; output range is −0.3 V to VCC + 0.3 V.
13 RIN1 input Channel 1 RS-232 receiver input; input voltage range is −15 V to +15 V.
14 TOUT1 output Channel 1 RS-232 driver output; driver output voltage limited to −13.2 V to +13.2 V.
15 GND power_in Ground reference for the device.
16 VCC power_in Single supply input, 3 V to 5.5 V; absolute maximum −0.3 V to +6 V.

Key specifications

Parameter Value
Manufacturer lingxingic
Package DIP-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 VCC -0.3 6 V 6
Positive output supply voltage V+ -0.3 7 V 6
Negative output supply voltage V- -7 -0.3 V 6
Differential supply V+ - V- (printed <13) V+ - V- 13 V 6
Driver input voltage TIN1, TIN2 -0.3 6 V 6
Driver output voltage TOUT1, TOUT2 -13.2 13.2 V 6
Receiver input voltage RIN1, RIN2 -15 15 V 6
Receiver output voltage ROUT1, ROUT2 (max printed as VCC+0.3) -0.3 V 6
ESD HBM, bus pins -15 15 kV HBM mode, bus pins 6
ESD HBM, all other pins -7 7 kV HBM mode, all other pins 6
Supply voltage range VCC 3 5.5 V 3
Operating temperature range -40 85 ℃ 3
Static supply current ICC ICC 0.9 1.5 mA No load, VCC=3.3V, TINx=GND or VCC, Tamb=25℃ 6
Static supply current ICC ICC 1 1.5 mA No load, VCC=5V, TINx=GND or VCC, Tamb=25℃ 6
TX input low level VIL VIL 0.8 V TIN1, TIN2, VCC=3.3V 6
TX input high level VIH VIH 2 V TIN1, TIN2, VCC=3.3V 6
TX input high level VIH VIH 2.4 V TIN1, TIN2, VCC=5.0V 6
TX input leakage current IIL IIL -1 0.1 15 μA TIN1, TIN2, VIN=0V～VCC, Tamb=25℃ 6
TX output voltage TVOUT TVOUT -5 5 V RL=3kΩ, TINx=GND or VCC, VCC=3.3V 6
TX output voltage TVOUT (typical, printed ±5.4) TVOUT 5.4 V RL=3kΩ, TINx=GND or VCC, VCC=3.3V 6
TX output short-circuit current TOSC TOSC -60 25 60 mA VOUT=0V, VCC=3.3V 7
TX output short-circuit current TOSC TOSC 30 mA VOUT=0V, VCC=5V 7
RX input voltage range VIN VIN -15 15 V 7
RX low input threshold VIT- VIT- 0.6 1.3 V VCC=3.3V 7
RX low input threshold VIT- VIT- 0.8 1.3 V VCC=5.0V 7
RX high input threshold VIT+ VIT+ 1.6 2.4 V VCC=3.3V 7
RX input hysteresis voltage RXHYS RXHYS 0.3 V 7
RX input resistance RXR RXR 3 5 7 kΩ 7
RX output leakage current ROI ROI -15 2.4 10 μA ROUT1, ROUT2, VCC=3.3V 7
RX output leakage current ROI ROI -15 2.7 10 μA ROUT1, ROUT2, VCC=5.0V 7
RX output low voltage VOL VOL 90 300 mV ROUT1, ROUT2, IOUT=1.5mA, VCC=3.3V 7
RX output low voltage VOL VOL 70 300 mV ROUT1, ROUT2, IOUT=1.5mA, VCC=5V 7
RX output high voltage VOH (min printed as VCC-0.3) VOH 3.2 V ROUT1, ROUT2, IOUT=-1.5mA, VCC=3.3V 7
RX output high voltage VOH (min printed as VCC-0.3) VOH 4.9 V ROUT1, ROUT2, IOUT=-1.5mA, VCC=5V 7
Maximum transmission rate fMAX fMAX 250 Kbps RL=3kΩ, CL=1000pF, 1 channel operating 7
TX slew rate SR (raise) SR 6 9 30 V/μs TX, Vcc=3.3V, RL=3kΩ, CL=1000pF, raise 7
TX slew rate SR (fall) SR 6 11 30 V/μs TX, Vcc=3.3V, RL=3kΩ, CL=1000pF, fall 7
TX propagation delay tDPLH tDPLH 600 800 ns CL=150pF 7
TX propagation delay tDPHL tDPHL 620 800 ns CL=150pF 7
TX propagation delay skew ∆tDP ∆tDP 20 300 ns tDPLH − tDPHL 7
RX propagation delay tRPHL tRPHL 160 300 ns RX, Vcc=3.3V, CL=150pF 7
RX propagation delay tRPHL tRPHL 180 300 ns RX, Vcc=5V, CL=150pF 7
RX propagation delay tRPLH tRPLH 150 400 ns RX, Vcc=3.3V, CL=150pF 7
RX propagation delay tRPLH tRPLH 210 400 ns RX, Vcc=5V, CL=150pF 7
RX propagation delay skew ∆tRP ∆tRP 10 100 ns Vcc=3.3V, tRPLH − tRPHL 7
RX propagation delay skew ∆tRP ∆tRP 30 100 ns Vcc=5V, tRPLH − tRPHL 7

CAD (KiCad official)

  • Symbol: MAX232CPE
  • Footprint: Package_DIP:DIP-16_W7.62mm
  • 3D model: DIP-16 (KiCad packages3D, STEP)
  • 3D model files: max232cpe-etched.step / max232cpe-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); max232cpe.step / max232cpe.glb are the bare package body.

Provenance

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

  • Datasheet: lingxingic datasheet (11 pp, sha256 9215fd64713a9839, retrieved 2026-10-15, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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