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TC1232EOA

Public Made by Adom

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Microchip Tech Monitors & Reset Circuits, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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TC1232EOA

Microchip Tech · Monitors & Reset Circuits · SOIC-8

TC1232EOA from Microchip Tech, in a SOIC-8. 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 PB RST input Debounced push-button manual reset input that forces both reset outputs active when driven low, ignores pulses shorter than 1 ms, and recognizes pulses of 20 ms or greater.
2 TD input Time-delay input that sets the watchdog timeout to 150 ms with TD tied to GND, 600 ms when left open, and 1.2 s when tied to VCC.
3 TOL input Tolerance select input that sets the VCC trip point to 4.75 V (5%) when tied to GND and to 4.5 V (10%) when tied to VCC.
4 GND power_in Ground reference for the device.
5 RST output Active-high push-pull reset output that goes high on VCC below the selected threshold, PB RST forced low, watchdog timeout, or power-up, and is held active for a minimum of 250 ms.
6 RST output Active-low open-drain reset output that goes low under the same conditions as RST (VCC below threshold, PB RST forced low, watchdog timeout, or power-up) and is held active for a minimum of 250 ms.
7 ST input Watchdog strobe input where each falling edge resets the watchdog timer, and the input requires a minimum pulse width of 20 ns (tST) and must be strobed within the selected timeout period.
8 VCC power_in Positive supply for the device, specified at 4.0 V to 5.5 V (5.0 V typical).

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package SOIC-8
Category Power Supply Chip
Pins 8

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 V 2
ST and PB RST Input High Level VIH 2 V Note 1 2
ST and PB RST Input Low Level VIL -0.3 0.8 V 2
Input Leakage ST, TOL IL -1 1 µA 2
Output Current RST IOH -1 -12 mA VOH = 2.4V 2
Output Current RST, RST IOL 2 10 mA VOL = 0.4V 2
Operating Current ICC 50 200 µA Note 2 (outputs open) 2
VCC 5% Trip Point VCCTP 4.5 4.62 4.74 V TOL = GND (Note 3) 2
VCC 10% Trip Point VCCTP 4.25 4.37 4.49 V TOL = VCC (Note 3) 2
Input Capacitance ST, TOL CIN 5 pF TA = +25°C (Note 4) 2
Output Capacitance RST, RST COUT 7 pF TA = +25°C (Note 4) 2
VCC Fall Time tF 10 µs Note 1 3
VCC Rise Time tR 0 µs Note 1 3
VCC Trip Point Detected to RST High and RST Low tRPD 100 ns VCC falling 3
VCC Trip Point Detected to RST High and RST Open tRPU 250 610 1000 ms VCC rising (Note 2) 3
PB RST Pulse Width tPB 20 ms Note 1 4
PB RST Falling Edge Low to Reset Active tPBD 1 4 20 ms 4
PB RST Rising Edge High to Reset Inactive tRST 250 610 1000 ms 4
ST Pulse Width tST 20 ns 4
ST Time-out Period tTD 62.5 150 250 ms TD Pin = 0V 4
ST Time-out Period tTD 250 600 1000 ms TD Pin = Open 4
ST Time-out Period tTD 500 1200 2000 ms TD Pin = VCC 4
Voltage on Any Pin (With Respect to GND) -0.3 5.8 V With respect to GND 2
Operating Temperature Range (E-Version) -40 85 °C E-version, applies to TC1232EOA 2
Storage Temperature Range -65 150 °C 2

CAD (KiCad official)

  • Symbol: TC1232EOA
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: tc1232eoa-etched.step / tc1232eoa-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tc1232eoa.step / tc1232eoa.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (24 pp, sha256 bf8a3940fbb9a6ff, retrieved 2026-10-24, tier: manufacturer)
  • 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