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WS213EA
Public Made by Adomby adom
GEC RS232 ICs, SSOP-28. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownWS213EA
GEC · RS232 ICs · SSOP-28
WS213EA from GEC, in a SSOP-28. 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 | T3OUT | output | Third RS-232 driver output, one of four transmitter outputs (RS-232 levels, ±15 kV air-gap ESD protection on RS-232 I/O). |
| 2 | T1OUT | output | First RS-232 driver output, with RS-232 output swing of ±5 V minimum at 3 kΩ load. |
| 3 | T2OUT | output | Second RS-232 driver output, with RS-232 output swing of ±5 V minimum at 3 kΩ load. |
| 4 | R2IN | input | Second RS-232 receiver input, with input voltage swing of ±20 V and input resistance of 3 to 7 kΩ. |
| 5 | R2OUT | tri_state | Second receiver TTL/CMOS output, tri-stated when EN is low or XSD is low. |
| 6 | T2IN | input | Second TTL/CMOS driver input, with input threshold 0.8 V low and 2.4 V high. |
| 7 | T1IN | input | First TTL/CMOS driver input, with input threshold 0.8 V low and 2.4 V high. |
| 8 | R1OUT | tri_state | First receiver TTL/CMOS output, tri-stated when EN is low or XSD is low. |
| 9 | R1IN | input | First RS-232 receiver input, with input voltage swing of ±20 V and input resistance of 3 to 7 kΩ. |
| 10 | GND | power_in | Ground reference for the device. |
| 11 | VCC | power_in | +5 V supply input, recommended range 4.75 V to 5.25 V, absolute maximum +7 V. |
| 12 | C1P | passive | Positive terminal of the boost charge-pump capacitor C1, typically 0.1 µF. |
| 13 | VP | power_out | Charge-pump generated +5.4 V output, with absolute maximum rating of -0.3 V to +7 V. |
| 14 | C1N | passive | Negative terminal of the boost charge-pump capacitor C1, typically 0.1 µF. |
| 15 | C2P | passive | Positive terminal of the inverting charge-pump capacitor C2, typically 0.1 µF. |
| 16 | C2N | passive | Negative terminal of the inverting charge-pump capacitor C2, typically 0.1 µF. |
| 17 | VN | power_out | Charge-pump generated -5.4 V output, with absolute maximum rating of -7 V to +0.3 V. |
| 18 | R5IN | input | Fifth RS-232 receiver input, with input voltage swing of ±20 V and input resistance of 3 to 7 kΩ. |
| 19 | R5OUT | tri_state | Fifth receiver output, tri-stated when EN is low or XSD is low. |
| 20 | T3IN | input | Third TTL/CMOS driver input, with input threshold 0.8 V low and 2.4 V high. |
| 21 | T4IN | input | Fourth TTL/CMOS driver input, with input threshold 0.8 V low and 2.4 V high. |
| 22 | R4OUT | tri_state | Fourth receiver TTL/CMOS output, tri-stated when EN is low or XSD is low. |
| 23 | R4IN | input | Fourth RS-232 receiver input, with input voltage swing of ±20 V and input resistance of 3 to 7 kΩ. |
| 24 | EN | input | Receiver enable control, active high, with TTL input thresholds of 0.8 V low and 2.4 V high. |
| 25 | XSD | input | Active-low shutdown control that disables the drivers and voltage converter, reducing supply current to 1 µA typical and 10 µA maximum. |
| 26 | R3OUT | tri_state | Third receiver TTL/CMOS output, tri-stated when EN is low or XSD is low. |
| 27 | R3IN | input | Third RS-232 receiver input, with input voltage swing of ±20 V and input resistance of 3 to 7 kΩ. |
| 28 | T4OUT | output | Fourth RS-232 driver output, with RS-232 output swing of ±5 V minimum at 3 kΩ load. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | GEC |
| Package | SSOP-28 |
| Category | Communication Interface Chip/UART/485/232 |
| Pins | 28 |
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 | 4.5 | 5 | 5.5 | V | VCC = +3.3V or VCC = +5V | 2 |
| Operating temperature | TA | -40 | 25 | 85 | ℃ | Industrial Grade | 2 |
| Operating current | 3 | 6 | mA | XSD= VCC; TTL Inputs = VCC/GND, RS-232 Input = float, VCC = 5V, no load on transmitter outputs | 2 | ||
| Operating current, drivers loaded | 15 | mA | XSD= VCC; TTL Inputs = VCC/GND RS-232 Input = float, VCC = 5V, all transmitter outputs loaded with R=3KΩ | 2 | |||
| Shutdown mode current | 1 | 10 | uA | XSD= GND; TTL Inputs = VCC/GND, RS-232 Inputs = float, VCC = 5V | 2 | ||
| Driver input threshold Low | 0.8 | V | VCC = +5V Supply; VIN = VCC and GND, TIN | 2 | |||
| Driver input threshold High | 2.4 | V | VCC = +5V Supply | 2 | |||
| Driver input leakage current | -200 | 200 | uA | 2 | |||
| Receiver output voltage Low | 0.4 | V | IOUT = 1.6mA | 2 | |||
| Receiver output leakage current | -10 | 10 | uA | Receiver Outputs Disabled, VOUT = VCC or GND, XSD= GND, EN= GND | 2 | ||
| Receiver input voltage swing | -20 | 20 | V | TA = 25°C, VCC = +5V Supply | 2 | ||
| Receiver input threshold Low | 0.8 | V | TA = 25°C, VCC = +5V Supply | 2 | |||
| Receiver input threshold High | 2.4 | V | TA = 25°C, VCC = +5V Supply | 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 | ||
| Driver output voltage | -5 | 5 | V | T1IN=T2IN=GND; T3IN=VCC; T3OUT=3kΩ; T1OUT=T2OUT=-2.5mA | 2 | ||
| Transition slew rate | 6 | 30 | V/uS | RL = 3~7kΩ, CL= 150pF to1000pF, One Transmitter Switching, TA = 25°C, Measured from 3V to -3V or -3V to 3V | 3 | ||
| Charge pump supply VCC (absolute) | VCC | 7 | V | 6 | |||
| Positive charge pump voltage | VP | -0.3 | 7 | V | 6 | ||
| Negative charge pump voltage | VN | -7 | 0.3 | V | 6 | ||
| Driver input pins voltage | TxIN, XEN, XSD | -0.3 | 7 | V | 6 | ||
| Receiver input pins voltage | RxIN | -20 | 20 | V | 6 | ||
| Driver output pins voltage | TxOUT | -15 | 15 | V | 6 | ||
| Storage temperature | TSTG | -65 | 150 | ℃ | 6 | ||
| Maximum junction temperature | TJ | 150 | ℃ | 6 | |||
| Recommended supply voltage | VDD | 4.75 | 5 | 5.25 | V | 6 | |
| Recommended operating temperature | TA | -40 | 85 | ℃ | 6 |
CAD (KiCad official)
- Symbol:
WS213EA - Footprint:
Package_SO:SSOP-28_5.3x10.2mm_P0.65mm - 3D model: SSOP-28 (KiCad packages3D, STEP)
- 3D model files:
ws213ea-etched.step/ws213ea-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ws213ea.step/ws213ea.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: GEC datasheet (9 pp, sha256
f4493af685175d79, retrieved 2026-10-27, 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, primaryclaude-haiku-5-5(text), consensusoff(skipped (clean text read)), 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).