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ATTINY84A-SSU

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Microchip Tech MICROCHIP, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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ATTINY84A-SSU

Microchip Tech · MICROCHIP · SOIC-14

ATTINY84A-SSU 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 selectable internal pull-up; alternate functions PCINT8/XTAL1/CLKI.
3 PB1 bidirectional Port B bit 1, bi-directional I/O with selectable internal pull-up; alternate functions PCINT9/XTAL2.
4 PB3 bidirectional Port B bit 3 or active-low RESET input (PCINT11/RESET/dW); a low level longer than the minimum pulse length generates a reset, and it is usable as I/O when the RSTDISBL fuse is programmed.
5 PB2 bidirectional Port B bit 2, bi-directional I/O with selectable internal pull-up; alternate functions PCINT10/INT0/OC0A/CKOUT.
6 PA7 bidirectional Port A bit 7, bi-directional I/O with selectable internal pull-up; alternate functions PCINT7/ICP/OC0B/ADC7.
7 PA6 bidirectional Port A bit 6, bi-directional I/O with selectable internal pull-up; alternate functions PCINT6/OC1A/SDA/MOSI/DI/ADC6.
8 PA5 bidirectional Port A bit 5, bi-directional I/O with selectable internal pull-up; alternate functions ADC5/DO/MISO/OC1B/PCINT5.
9 PA4 bidirectional Port A bit 4, bi-directional I/O with selectable internal pull-up; alternate functions ADC4/USCK/SCL/T1/PCINT4.
10 PA3 bidirectional Port A bit 3, bi-directional I/O with selectable internal pull-up; alternate functions ADC3/T0/PCINT3.
11 PA2 bidirectional Port A bit 2, bi-directional I/O with selectable internal pull-up; alternate functions ADC2/AIN1/PCINT2.
12 PA1 bidirectional Port A bit 1, bi-directional I/O with selectable internal pull-up; alternate functions ADC1/AIN0/PCINT1.
13 PA0 bidirectional Port A bit 0, bi-directional I/O with selectable 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 (Industrial) -40 85 °C 1
Clock frequency (speed grade) 0 4 MHz 1.8, 5.5V 1
Clock frequency (speed grade) 0 10 MHz 2.7, 5.5V 1
Clock frequency (speed grade) 0 20 MHz 4.5, 5.5V 1
Flash endurance 10000 Write/Erase Cycles 1
EEPROM endurance 100000 Write/Erase Cycles 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

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: ATTINY84A-SSU
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOIC-14 (KiCad packages3D, STEP)
  • 3D model files: attiny84a-ssu-etched.step / attiny84a-ssu-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); attiny84a-ssu.step / attiny84a-ssu.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 2026-10-23, 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