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SP3232ECA-L

Public Made by Adom

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MaxLinear RS232 ICs, SSOP-16-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SP3232ECA-L

MaxLinear · RS232 ICs · SSOP-16-208mil

SP3232ECA-L from MaxLinear, in a SSOP-16-208mil. 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; the datasheet specifies external capacitors as low as 0.1µF with a 16V breakdown rating.
2 V+ power_out Regulated 5.5V output generated by the charge pump, 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 Regulated -5.5V output generated by the charge pump, regardless of VCC over the 3.0V to 5.5V range.
7 T2OUT output RS-232 driver output, protected against infinite short-circuits to ground and meeting ±5V minimum when fully loaded.
8 R2IN input RS-232 receiver input with RxIN absolute maximum of ±25V and an internal 5kΩ pulldown that forces the output HIGH when left unconnected.
9 R2OUT output TTL/CMOS receiver output, limited to -0.3V to (VCC + 0.3V).
10 T2IN input TTL/CMOS driver input, limited to -0.3V to (VCC + 0.3V); it has no pull-up, so unused inputs should be tied to VCC or GND.
11 T1IN input TTL/CMOS driver input, limited to -0.3V to (VCC + 0.3V); it has no pull-up, so unused inputs should be tied to VCC or GND.
12 R1OUT output TTL/CMOS receiver output, limited to -0.3V to (VCC + 0.3V).
13 R1IN input RS-232 receiver input with RxIN absolute maximum of ±25V and an internal 5kΩ pulldown that forces the output HIGH when left unconnected.
14 T1OUT output RS-232 driver output, protected against infinite short-circuits to ground and meeting ±5V minimum when fully loaded.
15 GND power_in Ground reference for the device.
16 VCC power_in Supply voltage, 3.0V to 5.5V.

Key specifications

Parameter Value
Manufacturer MaxLinear
Package SSOP-16-208mil
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
VCC supply voltage (absolute maximum) VCC -0.3 6 V 2
V+ output (absolute maximum) V+ -0.3 7 V 2
V- output (absolute maximum) V- -7 0.3 V 2
V+ + /V-/ (absolute maximum) V+ + /V-/ 13 V 2
ICC DC VCC or GND current (absolute maximum) ICC -100 100 mA 2
Input voltages TxIN, EN, SHDN (absolute maximum) -0.3 V max printed as (VCC + 0.3V) 2
Input voltage RxIN (absolute maximum) -25 25 V 2
Output voltage TxOUT (absolute maximum) -13.2 13.2 V 2
Output voltage RxOUT (absolute maximum) -0.3 V max printed as (VCC + 0.3V) 2
Storage temperature -65 150 °C 2
Supply current 0.3 1 mA no load, VCC = 3.3V, TAMB = 25°C, TxIN = GND or VCC 2
Input logic threshold LOW 0.8 V TxIN, EN, SHDN (note 2) 2
Input logic threshold HIGH 2 V VCC = 3.3V (note 2) 2
Input logic threshold HIGH 2.4 V VCC = 5.0V (note 2) 2
Input leakage current 0.01 1 µA TxIN, EN, SHDN, TAMB = 25°C, VIN = 0V to VCC 2
Output leakage current (receivers) 0.05 10 µA Receivers disabled, VOUT = 0V to VCC 2
Output voltage LOW 0.4 V IOUT = 1.6mA 2
Output voltage swing (driver) 5 5.4 V All driver outputs loaded with 3kΩ to GND, TAMB = 25°C 2
Output short-circuit current (driver) 35 60 mA VOUT = 0V 2
Output leakage current (driver) 25 µA VCC = 0V or 3.0V to 5.5V, VOUT = +12V, drivers disabled 2
Input voltage range (receiver) -15 15 V 3
Input threshold LOW (receiver) 0.6 1.2 V VCC = 3.3V 3
Input threshold LOW (receiver) 0.8 1.5 V VCC = 5.0V 3
Input threshold HIGH (receiver) 1.5 2.4 V VCC = 3.3V 3
Input threshold HIGH (receiver) 1.8 2.4 V VCC = 5.0V 3
Input hysteresis (receiver) 0.3 V 3
Input resistance (receiver) 3 5 7 kΩ 3
Maximum data rate 120 235 kbps RL = 3kΩ, CL = 1000pF, one driver switching 3
Driver propagation delay, tPHL tPHL 1 µs RL = 3kΩ, CL = 1000pF 3
Driver propagation delay, tPLH tPLH 1 µs RL = 3kΩ, CL = 1000pF 3
Receiver propagation delay, tPHL tPHL 0.3 µs Receiver input to receiver output, CL = 150pF 3
Receiver propagation delay, tPLH tPLH 0.3 µs Receiver input to receiver output, CL = 150pF 3
Receiver output enable time 200 ns 3
Receiver output disable time 200 ns 3
Driver skew 100 500 ns / tPHL - tPLH /, TAMB = 25°C 3
Receiver skew 200 1000 ns / tPHL - tPLH / 3
Transition-region slew rate (driver) 30 V/µs VCC = 3.3V, RL = 3kΩ, CL = 1000pF, TAMB = 25°C, measurements taken from -3.0V to 3.0V or 3.0V to -3.0V 3
Supply voltage VCC (operating range) VCC 3 5.5 V Electrical characteristics apply for VCC = 3.0V to 5.5V 2
Operating ambient temperature (commercial grade SP3232ECA-L) TAMB 0 70 °C Ordering table 0°C to +70°C for SP3232ECA-L 20

CAD (KiCad official)

  • Symbol: SP3232ECA-L
  • Footprint: Package_SO:SSOP-16_5.3x6.2mm_P0.65mm
  • 3D model: SSOP-16-208mil (KiCad packages3D, STEP)
  • 3D model files: sp3232eca-l-etched.step / sp3232eca-l-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sp3232eca-l.step / sp3232eca-l.glb are the bare package body.

Provenance

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

  • Datasheet: MaxLinear datasheet (21 pp, sha256 657cf6a156b351de, 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