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Contents

README

markdown

ATTINY24A-SSN

Microchip Tech · Pre-ordered MCUs · SOIC-14

ATTINY24A-SSN from Microchip Tech, in a SOIC-14. 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 VCC power_in Supply voltage, 1.8-5.5V operating range.
2 PB0 bidirectional Port B bit 0, bi-directional I/O with internal pull-up; alternate functions PCINT8, XTAL1, CLKI.
3 PB1 bidirectional Port B bit 1, bi-directional I/O with internal pull-up; alternate functions PCINT9, XTAL2.
4 PB3 bidirectional Port B bit 3 / active-low RESET input (weak I/O if the RSTDISBL fuse is programmed); alternate functions PCINT11, dW.
5 PB2 bidirectional Port B bit 2, bi-directional I/O with internal pull-up; alternate functions PCINT10, INT0, OC0A, CKOUT.
6 PA7 bidirectional Port A bit 7, bi-directional I/O with internal pull-up; alternate functions PCINT7, ICP, OC0B, ADC7.
7 PA6 bidirectional Port A bit 6, bi-directional I/O with internal pull-up; alternate functions PCINT6, OC1A, SDA, MOSI, DI, ADC6.
8 PA5 bidirectional Port A bit 5, bi-directional I/O with internal pull-up; alternate functions ADC5, DO, MISO, OC1B, PCINT5.
9 PA4 bidirectional Port A bit 4, bi-directional I/O with internal pull-up; alternate functions ADC4, USCK, SCL, T1, PCINT4.
10 PA3 bidirectional Port A bit 3, bi-directional I/O with internal pull-up; alternate functions ADC3, T0, PCINT3.
11 PA2 bidirectional Port A bit 2, bi-directional I/O with internal pull-up; alternate functions ADC2, AIN1, PCINT2.
12 PA1 bidirectional Port A bit 1, bi-directional I/O with internal pull-up; alternate functions ADC1, AIN0, PCINT1.
13 PA0 bidirectional Port A bit 0, bi-directional I/O with internal pull-up; alternate functions ADC0, AREF, PCINT0.
14 GND power_in Ground.

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package SOIC-14
Category Embedded Processors & Controllers
Pins 14

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Operating Voltage VCC 1.8 5.5 V 1
Operating Temperature Range (ATtiny24A-SSN) -40 105 °C Industrial, 14S1 SOIC, ATtiny24A-SSN 11
Speed Grade 1.8-5.5V 0 4 MHz 1.8, 5.5V 1
Speed Grade 2.7-5.5V 0 10 MHz 2.7, 5.5V 1
Speed Grade 4.5-5.5V 0 20 MHz 4.5, 5.5V 1
Active Mode Current 210 µA 1.8V and 1 MHz 1
Idle Mode Current 33 µA 1.8V and 1 MHz 1
Power-down Mode Current 0.1 µA 1.8V and 25°C 1
Flash Endurance 10000 Write/Erase Cycles 1
EEPROM Endurance 100000 Write/Erase Cycles 1

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin , H: NiPdAu lead finish, F, N, U: matte tin 11

CAD (KiCad official)

  • Symbol: ATTINY24A-SSN
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOIC-14 (KiCad packages3D, STEP)
  • 3D model files: attiny24a-ssn-etched.step / attiny24a-ssn-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); attiny24a-ssn.step / attiny24a-ssn.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (22 pp, sha256 885cfa70a446881c, retrieved 2026-10-26, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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