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SP3222ECA-L

MaxLinear · Pre-ordered Chips · SSOP-20-208mil

SP3222ECA-L from MaxLinear, in a SSOP-20-208mil. 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 EN input Receiver enable; apply logic LOW for normal operation and logic HIGH to disable the receiver outputs (high-Z state).
2 C1+ passive Positive terminal of the voltage doubler charge-pump capacitor.
3 V+ power_out 5.5V output generated by the charge pump.
4 C1- passive Negative terminal of the voltage doubler charge-pump capacitor.
5 C2+ passive Positive terminal of the inverting charge-pump capacitor.
6 C2- passive Negative terminal of the inverting charge-pump capacitor.
7 V- power_out -5.5V output generated by the charge pump.
8 T2OUT output RS-232 driver output.
9 R2IN input RS-232 receiver input, specified for an input voltage range of -15V to 15V.
10 R2OUT output TTL/CMOS receiver output, tri-stated when EN is HIGH.
11 N.C. unconnected No connect.
12 T2IN input TTL/CMOS driver input; the driver input has no pull-up, so unused inputs should be connected to VCC or GND.
13 T1IN input TTL/CMOS driver input; the driver input has no pull-up, so unused inputs should be connected to VCC or GND.
14 N.C. unconnected No connect.
15 R1OUT output TTL/CMOS receiver output, tri-stated when EN is HIGH.
16 R1IN input RS-232 receiver input, specified for an input voltage range of -15V to 15V.
17 T1OUT output RS-232 driver output, protected against infinite short-circuit to ground.
18 GND power_in Ground.
19 VCC power_in Supply voltage, 3.0V to 5.5V.
20 SHDN input Shutdown control input; drive HIGH for normal operation and LOW to shut down the drivers (high-Z output) and the on-board power supply.

Key specifications

Parameter Value
Manufacturer MaxLinear
Package SSOP-20-208mil
Category Interface ICs
Pins 20

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 current 0.3 1 mA no load, VCC = 3.3V, TAMB = 25oC, TxIN = GND or VCC 2
Shutdown supply current 1 10 µA SHDN = GND, VCC = 3.3V, TAMB = 25oC, TxIN = Vcc or GND 2
Input logic threshold HIGH 2 V VCC = 3.3V(2) 2
Input logic threshold HIGH 2.4 V VCC = 5.0V(2) 2
Input logic threshold LOW 0.8 V TxIN, EN, SHDN(2) 2
Input leakage current 0.01 1 µA TxIN, EN, SHDN, TAMB = 25oC, 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 5 5.4 V All driver outputs loaded with 3kΩ to GND, TAMB = 25oC 2
Output resistance 300 Ω VCC = V+ = V- = 0V, TOUT = +2V 2
Output short-circuit current 35 60 mA VOUT = 0V 2
Output leakage current (drivers) 25 µA VCC = 0V or 3.0V to 5.5V, VOUT = +12V, drivers disabled 2
Input voltage range -15 15 V 3
Input threshold LOW 0.6 1.2 V VCC = 3.3V 3
Input threshold LOW 0.8 1.5 V VCC = 5.0V 3
Input threshold HIGH 1.5 2.4 V VCC = 3.3V 3
Input threshold HIGH 1.8 2.4 V VCC = 5.0V 3
Input resistance 3 5 7 kΩ 3
Maximum data rate 120 235 kbps RL = 3kΩ, CL = 1000pF, one driver switching 3
Driver skew 100 500 ns / tPHL - tPLH /, TAMB = 25°C 3
Receiver skew 200 1000 ns / tPHL - tPLH / 3
Transition-region slew rate 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
Receiver output enable time 200 ns 3
Receiver output disable time 200 ns 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
Input hysteresis 0.3 V 3
Supply voltage VCC VCC 3 5.5 V Electrical characteristics apply for VCC = 3.0V to 5.5V 2
Operating ambient temperature (commercial, SP3222ECA-L) TAMB 0 70 °C Ordering information: 0°C to +70°C for the C-grade 20-pin SSOP (SP3222ECA-L/TR) 20
VCC supply voltage (absolute maximum) VCC -0.3 6 V 2
V+ output voltage (absolute maximum) V+ -0.3 7 V 2
V- output voltage (absolute maximum) V- -7 0.3 V 2
V+ + /V-/ (absolute maximum) V+ + /V-/ 13 V 2
ICC (DC VCC or GND current) ICC -100 100 mA 2
Input voltage TxIN, EN, SHDN -0.3 V Max printed as VCC + 0.3V 2
Receiver input voltage RxIN -25 25 V 2
Driver output voltage TxOUT -13.2 13.2 V 2
Receiver output voltage RxOUT -0.3 V Max printed as VCC + 0.3V 2
Storage temperature -65 150 °C 2

CAD (KiCad official)

  • Symbol: SP3222ECA-L
  • Footprint: Package_SO:SSOP-20_5.3x7.2mm_P0.65mm
  • 3D model: SSOP-20-208mil (KiCad packages3D, STEP)
  • 3D model files: sp3222eca-l-etched.step / sp3222eca-l-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sp3222eca-l.step / sp3222eca-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 2026-10-31, 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