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MAX3232ESE+T

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

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MAX3232ESE+T

Maxim Integrated · RS232 ICs · SOIC-16

MAX3232ESE+T from Maxim Integrated, in a SOIC-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, which uses 0.1µF for 3.3V operation per the capacitor selection table.
2 V+ power_out Charge-pump output generating +5.5V regardless of VCC over the 3.0V to 5.5V range.
3 C1- passive Negative terminal of the voltage-doubler charge-pump capacitor.
4 C2+ passive Positive terminal of the inverting charge-pump capacitor.
5 C2- passive Negative terminal of the inverting charge-pump capacitor.
6 V- power_out Charge-pump output generating -5.5V regardless of VCC over the 3.0V to 5.5V range.
7 T2OUT output RS-232 transmitter output guaranteed at ±5.0V minimum with 3kΩ to ground, and can be driven up to ±12V when the power is off.
8 R2IN input RS-232 receiver input with an input voltage range of ±25V.
9 R2OUT output TTL/CMOS receiver output.
10 T2IN input TTL/CMOS transmitter input with a logic threshold low of 0.8V maximum and a threshold high of 2.0V at VCC = 3.3V or 2.4V at VCC = 5.0V.
11 T1IN input TTL/CMOS transmitter input with a logic threshold low of 0.8V maximum and a threshold high of 2.0V at VCC = 3.3V or 2.4V at VCC = 5.0V.
12 R1OUT output TTL/CMOS receiver output.
13 R1IN input RS-232 receiver input with an input voltage range of ±25V.
14 T1OUT output RS-232 transmitter output guaranteed at ±5.0V minimum with 3kΩ to ground, and can be driven up to ±12V when the power is off.
15 GND power_in Ground reference for the device.
16 VCC power_in Supply voltage of +3.0V to +5.5V.

Key specifications

Parameter Value
Manufacturer Maxim Integrated
Package SOIC-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
VCC power-supply current (MAX3222/MAX3232/MAX3241 group) ICC 0.3 1 mA No load, VCC = 3.3V or 5.0V, TA = +25°C 2
Input logic threshold low VIL 0.8 V (Note 3) T_IN, EN, SHDN, MBAUD 2
Input logic threshold high, VCC = 3.3V VIH 2 V VCC = 3.3V 2
Input logic threshold high, VCC = 5.0V VIH 2.4 V VCC = 5.0V 2
Input leakage current IIL -1 0.01 1 µA T_IN, EN, SHDN, MBAUD 2
Receiver output leakage current IOZR -10 0.05 10 µA Receivers disabled 2
Receiver output voltage low VOL 0.4 V IOUT = 1.6mA 2
Receiver input voltage range VRIN -25 25 V 2
Receiver input resistance RIN 3 5 7 kΩ TA = +25°C 3
Transmitter output voltage swing VO -5 5.4 5 V All transmitter outputs loaded with 3kΩ to ground 3
Transmitter output resistance ROUT 300 Ω VCC = V+ = V- = 0V, VOUT = ±2V 3
Transmitter output leakage current IOZT -25 25 µA VOUT = ±12V, VCC = 0V or 3V to 5.5V, transmitters disabled 3
Maximum data rate 120 235 kbps RL = 3kΩ, CL = 1000pF, one transmitter switching 3
Receiver output enable time 200 ns Normal operation 3
Receiver output disable time 200 ns Normal operation 3
Transmitter skew /tPHL - tPLH/ 300 ns 3
Receiver skew /tPHL - tPLH/ 300 ns 3
Transition-region slew rate, CL = 150pF to 1000pF SR 6 30 V/µs VCC = 3.3V, RL = 3kΩ to 7kΩ, +3V to -3V or -3V to +3V, TA = +25°C, one transmitter switching 3
Transition-region slew rate, CL = 150pF to 2500pF SR 4 30 V/µs VCC = 3.3V, RL = 3kΩ to 7kΩ, +3V to -3V or -3V to +3V, TA = +25°C, one transmitter switching 3
Supply voltage VCC VCC -0.3 6 V 2
V+ (charge-pump output) V+ -0.3 7 V Note 1 2
V- (charge-pump output) V- -7 0.3 V Note 1 2
V+ + V- V+ + V- 13 V Note 1 2
Input voltage T_IN, SHDN, EN VIN -0.3 6 V 2
Receiver input voltage R_IN VRIN -25 25 V 2
Transmitter output voltage T_OUT VTOUT -13.2 13.2 V 2
Storage temperature range TSTG -65 150 °C 2
Lead temperature TLEAD 300 °C Soldering, 10s 2
Supply voltage VCC VCC 3 5.5 V 2
Operating temperature range (MAX32__E__) TA -40 85 °C E-grade part, TMIN to TMAX 2
Minimum charge-pump capacitor C1 C1 0.1 µF VCC = 3.0 to 5.5V, Table 2 minimum 9
Minimum charge-pump capacitors C2, C3, C4 C2-C4 0.47 µF VCC = 3.0 to 5.5V, Table 2 minimum 9
Thermal resistance junction-to-ambient, single-layer board θJA 115 °C/W 16-pin narrow SO (S16+5), single-layer board 16
Thermal resistance junction-to-case, single-layer board θJC 32 °C/W 16-pin narrow SO (S16+5), single-layer board 16
Thermal resistance junction-to-ambient, multilayer board θJA 73 °C/W 16-pin narrow SO (S16+5), multilayer board 16
Thermal resistance junction-to-case, multilayer board θJC 23 °C/W 16-pin narrow SO (S16+5), multilayer board 16

CAD (KiCad official)

  • Symbol: MAX3232ESE+T
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOIC-16 (KiCad packages3D, STEP)
  • 3D model files: max3232ese-t-etched.step / max3232ese-t-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); max3232ese-t.step / max3232ese-t.glb are the bare package body.

Provenance

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

  • Datasheet: Maxim Integrated datasheet (17 pp, sha256 6785941ca00a4c2a, retrieved 2026-10-21, 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