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SP232AEN-L

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

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SP232AEN-L

MaxLinear · RS232 ICs · SOIC-16

SP232AEN-L from MaxLinear, 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 should be a low-ESR ceramic (0.1μF) mounted close to the IC.
2 V+ power_out +6.5V generated by the charge pump for RS-232 driver levels; the datasheet gives an absolute maximum of (Vcc-0.3V) to +11.0V.
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 -6.7V generated by the charge pump for RS-232 driver levels; the absolute maximum rating for V- is -11.0V.
7 T2OUT output RS-232 driver output; short-circuit duration is continuous to ground per the absolute maximum ratings, and the output swing is typically ±5.0V minimum when loaded with 3kΩ.
8 R2IN input RS-232 receiver input, rated for ±15V with about 0.5V typical hysteresis and an internal 5kΩ pull-down that forces the output HIGH when left unconnected.
9 R2OUT output TTL/CMOS receiver output, which is driven to logic HIGH when R2IN is left unconnected.
10 T2IN input TTL/CMOS driver input; logic threshold LOW is 0.8V maximum and HIGH is 2.0V minimum.
11 T1IN input TTL/CMOS driver input; logic threshold LOW is 0.8V maximum and HIGH is 2.0V minimum.
12 R1OUT output TTL/CMOS receiver output, which is driven to logic HIGH when R1IN is left unconnected.
13 R1IN input RS-232 receiver input, rated for ±15V with about 0.5V typical hysteresis and an internal 5kΩ pull-down that forces the output HIGH when left unconnected.
14 T1OUT output RS-232 driver output; short-circuit duration is continuous to ground per the absolute maximum ratings, and the output swing is typically ±5.0V minimum when loaded with 3kΩ.
15 GND power_in Ground reference for the device.
16 Vcc power_in 5V supply voltage; the datasheet specifies Vcc = 5V ±10% with an absolute maximum of 6V.

Key specifications

Parameter Value
Manufacturer MaxLinear
Package SOIC-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) absolute maximum VCC 6 V 2
V+ (charge pump output) V+ 11 V Printed range (Vcc-0.3V) to +11.0V; lower limit is an expression, not entered 2
V- (charge pump output) V- -11 V 2
Tin input voltage Tin -0.3 V Printed range -0.3V to (Vcc + 0.3V); upper limit is an expression, not entered 2
Rin input voltage Rin -15 15 V Printed as +/-15V 2
Storage temperature -65 150 °C 2
Lead temperature (soldering) 300 °C Soldering, 10s 2
Logic threshold LOW 0.8 Volts TIN 2
Logic threshold HIGH 2 Volts TIN 2
Logic pull-up current 15 200 μA TIN = 0V 2
Output voltage LOW 0.4 Volts Iout = 3.2 mA; Vcc = +5V 2
Output voltage HIGH 3.5 Volts Iout = -1.0 mA 2
RS-232 output voltage swing 5 6.5 Volts All transmitter outputs loaded with 3k ohms to GND 2
Output resistance 300 Ohms Vcc = 0V, Vout = +/-2V 2
Output short circuit current -18 18 mA Infinite duration; printed +/-18 mA 2
Maximum data rate 120 240 kbps CL = 2500pF, RL = 3kΩ 2
RS-232 input voltage range -15 15 Volts 2
Voltage threshold LOW 0.8 1.2 Volts Vcc = 5V, Ta=25°C 2
Voltage threshold HIGH 1.7 2.4 Volts Vcc = 5V, Ta=25°C 2
Hysteresis 0.2 0.5 1 Volts Vcc = 5V, Ta=25°C 2
RS-232 input resistance 3 5 7 kΩ Ta=25°C, -15V ≤ Vin ≤ +15V 2
Driver propagation delay 1.5 3 μs TTL to RS_232; CL = 50pF 3
Receiver propagation delay 0.1 1 μs RS-232 to TTL 3
Instantaneous slew rate 30 V/μs CL = 10pF, RL = 3-7kΩ 3
Transition region slew rate 10 V/μs CL = 2500pF, RL = 3kΩ; measured from +3V to -3V or -3V to +3V 3
Vcc power supply current, no load 1.5 5 mA No load, Vcc = 5V, Ta=25°C 3
Vcc power supply current, loaded 11 mA All transmitters RL = 3kΩ, Ta=25°C 3
Supply voltage VCC tolerance VCC -10 10 % Vcc = 5V ±10%, Tmin to Tmax 3
Supply voltage VCC (nominal, typical values) VCC 5 V Typical values are Vcc=5V and Ta=25°C 3

CAD (KiCad official)

  • Symbol: SP232AEN-L
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOIC-16 (KiCad packages3D, STEP)
  • 3D model files: sp232aen-l-etched.step / sp232aen-l-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sp232aen-l.step / sp232aen-l.glb are the bare package body.

Provenance

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

  • Datasheet: MaxLinear datasheet (10 pp, sha256 c506f0d256db4b1d, 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