component
ATTINY44A-PU
Public Made by Adomby adom
Microchip Tech Pre-ordered MCUs, PDIP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Contents
README
markdownATTINY44A-PU
Microchip Tech · Pre-ordered MCUs · PDIP-14
ATTINY44A-PU from Microchip Tech, in a PDIP-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 pin for the device, rated 1.8 to 5.5 V across the speed grades (0 to 4 MHz at 1.8 to 5.5 V, 0 to 10 MHz at 2.7 to 5.5 V, 0 to 20 MHz at 4.5 to 5.5 V). |
| 2 | PB0 | bidirectional | Port B bit 0 with per-bit selectable internal pull-up and symmetrical high sink/source drive, tri-stated during reset; alternate functions are XTAL1/CLKI and PCINT8. |
| 3 | PB1 | bidirectional | Port B bit 1 with per-bit selectable internal pull-up and symmetrical high sink/source drive, tri-stated during reset; alternate functions are XTAL2 and PCINT9. |
| 4 | PB3 | bidirectional | Port B bit 3 that acts as the active-low RESET input (minimum pulse length per Table 20-4) unless the RSTDISBL fuse is programmed to '0', in which case it is a normal I/O pin; alternate functions are PCINT11 and debugWIRE (dW). |
| 5 | PB2 | bidirectional | Port B bit 2 with per-bit selectable internal pull-up and symmetrical high sink/source drive, tri-stated during reset; alternate functions are INT0, OC0A, CKOUT and PCINT10. |
| 6 | PA7 | bidirectional | Port A bit 7 with per-bit selectable internal pull-up and symmetrical high sink/source drive, tri-stated during reset; alternate functions are ICP, OC0B, ADC7 and PCINT7. |
| 7 | PA6 | bidirectional | Port A bit 6 with per-bit selectable internal pull-up and symmetrical high sink/source drive, tri-stated during reset; alternate functions are OC1A, SDA, MOSI, DI, ADC6 and PCINT6. |
| 8 | PA5 | bidirectional | Port A bit 5 with per-bit selectable internal pull-up and symmetrical high sink/source drive, tri-stated during reset; alternate functions are ADC5, DO, MISO, OC1B and PCINT5. |
| 9 | PA4 | bidirectional | Port A bit 4 with per-bit selectable internal pull-up and symmetrical high sink/source drive, tri-stated during reset; alternate functions are ADC4, USCK, SCL, T1 and PCINT4. |
| 10 | PA3 | bidirectional | Port A bit 3 with per-bit selectable internal pull-up and symmetrical high sink/source drive, tri-stated during reset; alternate functions are ADC3, T0 and PCINT3. |
| 11 | PA2 | bidirectional | Port A bit 2 with per-bit selectable internal pull-up and symmetrical high sink/source drive, tri-stated during reset; alternate functions are ADC2, AIN1 and PCINT2. |
| 12 | PA1 | bidirectional | Port A bit 1 with per-bit selectable internal pull-up and symmetrical high sink/source drive, tri-stated during reset; alternate functions are ADC1, AIN0 and PCINT1. |
| 13 | PA0 | bidirectional | Port A bit 0 with per-bit selectable internal pull-up and symmetrical high sink/source drive, tri-stated during reset; alternate functions are ADC0, AREF and PCINT0. |
| 14 | GND | power_in | Ground reference pin for the device. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | PDIP-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 | Features: operating voltage; industrial, ATtiny44A-PU | 1 | |
| Industrial operating temperature range | -40 | 85 | °C | Industrial (-40°C to +85°C) for ATtiny44A-PU, 14P3 PDIP | 12 | ||
| Speed grade | 0 | 4 | MHz | 1.8, 5.5 V | 1 | ||
| Speed grade | 0 | 10 | MHz | 2.7, 5.5 V | 1 | ||
| Speed grade | 0 | 20 | MHz | 4.5, 5.5 V | 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:
ATTINY44A-PU - Footprint:
Package_DIP:DIP-14_W7.62mm - 3D model: PDIP-14 (KiCad packages3D, STEP)
- 3D model files:
attiny44a-pu-etched.step/attiny44a-pu-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);attiny44a-pu.step/attiny44a-pu.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (22 pp, sha256
885cfa70a446881c, retrieved 2026-10-29, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).