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WS3223ECY

Public Made by Adom

by adom

GEC RS232 ICs, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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WS3223ECY

GEC · RS232 ICs · TSSOP-20

WS3223ECY from GEC, in a TSSOP-20. 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 XEN input Receiver enable, active low; a high level forces the receiver outputs into high-impedance (tri-state).
2 C1+ passive Positive terminal of the boost charge-pump capacitor (C1 at 0.1 µF per the test conditions).
3 V+ power_out Positive supply voltage generated by the charge pump, stated as +5.4 V.
4 C1- passive Negative terminal of the boost 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 Negative supply voltage generated by the charge pump, stated as -5.4 V.
8 T2OUT output Second RS-232 driver output (driver output limited to ±15 V per the absolute maximum table).
9 R2IN input Second RS-232 receiver input (limited to ±20 V per the absolute maximum table).
10 R2OUT output Second TTL/CMOS receiver output, referenced to VCC.
11 XIDLE output TTL/CMOS output that indicates the XPWRSAVE or shutdown state.
12 T2IN input Second TTL/CMOS driver input.
13 T1IN input First TTL/CMOS driver input.
14 XPWRSAVE input Power-save control; a high level forces the drivers active and SHUTDOWN must be high.
15 R1OUT output First TTL/CMOS receiver output.
16 R1IN input First RS-232 receiver input (limited to ±20 V per the absolute maximum table).
17 T1OUT output First RS-232 driver output (driver output limited to ±15 V per the absolute maximum table).
18 GND power_in Ground reference.
19 VCC power_in Supply voltage, +3 V to +3.6 V (recommended 3.3 V typical).
20 XSD input Shutdown control, active low; shuts down the drivers and the voltage converter.

Key specifications

Parameter Value
Manufacturer GEC
Package TSSOP-20
Category Interface
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 voltage VCC 3 3.3 3.6 V VCC = +3.3V 2
Temperature -40 25 85 ℃ 0°C to +70°C Commercial Grade 2
Charge pump capacitor (C1P, C1N, C2P, C2N) 0.1 0.1 1 uF 2
Operating current 0.5 1 mA TTL Inputs = VCC/GND, RS-232 Input = float 2
Operating current, XPWRSAVE disabled 0.5 1 mA XSD = VCC, XPWRSAVE = VCC, TTL Inputs = VCC/GND, RS-232 Input = float, VCC = 3.3V 2
Operating current, XPWRSAVE enabled 1 10 uA XSD = VCC, XPWRSAVE = GND, TTL Inputs = VCC/GND, RS-232 Input = float, VCC = 3.3V 2
Shutdown current 1 10 uA XSD = GND 2
Driver input threshold voltage Low 0.8 V VCC = +3.3V Supply 2
Driver input threshold voltage High 2.4 V VCC = +3.3V Supply 2
Driver input leakage current 0.1 1 uA 2
Receiver output voltage Low 0.4 V IOUT = 1.6mA 2
Receiver output leakage current 0.1 10 uA Receiver Outputs Disabled, VOUT = VCC or GND 2
Receiver input voltage swing -20 20 V TA = 25°C, VCC = 3.3V Supply 2
Receiver input threshold voltage Low 0.8 V 2
Receiver input threshold voltage High 2.4 V 2
Receiver input resistance 3 5 7 KΩ VIN = ±20V, TA = 25°C 2
Driver output voltage swing -5 5 V RL = 3kΩ, All Outputs are loaded 2
Driver output resistance 300 Ω VCC = VP = VN = GND, VOUT = ±2V 2
Driver output short-circuit current -60 60 mA VOUT = GND 2
Driver output leakage current -5 5 uA Transmitter Disabled, VOUT = ±12V 2
Maximum data rate 250 Kbps RL = 3kΩ, CL = 1000pF, One Transmitter 2
Driver transition-region slew rate 6 30 V/uS RL = 3~7kΩ, CL = 150pF to 1000pF, One Transmitter Switching, TA = 25°C, measured from 3V to -3V or -3V to 3V 3
ESD HBM, RS-232 inputs and outputs -15 15 KV RS-232 Inputs and Outputs 3
ESD EN61000-4-2 contact discharge -8 8 KV 3
ESD EN61000-4-2 air gap discharge -15 15 KV 3
Maximum operating voltage VCC 7 V 8
Positive charge pump voltage VP -0.3 7 V 8
Negative charge pump voltage VN -7 0.3 V 8
Driver input pins T1IN, T2IN -0.3 7 V 8
Receiver input pins R1IN, R2IN -20 20 V 8
Driver output pins T1OUT, T2OUT -15 15 V 8
Storage temperature TSTG -65 150 ℃ 8
Maximum junction temperature TJ 150 ℃ 8
ESD-HBM ESD-HBM 2000 V 8
Recommended operating voltage VDD 3 3.3 3.6 V 8
Operating temperature TA -40 85 ℃ 8
Driver input threshold hysteresis 0.5 V VCC = +3.3V Supply 2
Receiver input threshold hysteresis 0.5 V 2
Receiver input propagation delay 0.15 uS CL = 150pF 3
Receiver output propagation delay 0.15 uS 3
Receiver input-to-output delay difference 50 nS 3
Receiver output high to shutdown time 0.2 uS 3
Receiver input to XIDLE output high 1 uS 3
Receiver input to XIDLE output low 30 uS 3
Power save mode to driver enable 100 uS 3

CAD (KiCad official)

  • Symbol: WS3223ECY
  • Footprint: Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm
  • 3D model: TSSOP-20 (KiCad packages3D, STEP)
  • 3D model files: ws3223ecy-etched.step / ws3223ecy-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ws3223ecy.step / ws3223ecy.glb are the bare package body.

Provenance

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

  • Datasheet: GEC datasheet (12 pp, sha256 6121c9c080e0acf7, retrieved 2026-10-17, 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