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ATTINY4313-PU
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Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), PDIP-20. 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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Contents
README
markdownATTINY4313-PU
Microchip Tech · Microcontroller Units (MCUs/MPUs/SOCs) · PDIP-20
ATTINY4313-PU from Microchip Tech, in a PDIP-20. 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 | PA2 | bidirectional | Port A bit 2 with PCINT10, also active-low reset input (a low level longer than the minimum pulse length resets the device) and debugWIRE; use as I/O by programming the RSTDISBL fuse. |
| 2 | PD0 | bidirectional | Port D bit 0 bi-directional I/O with internal pull-up, alternate functions RXD and PCINT11. |
| 3 | PD1 | bidirectional | Port D bit 1 bi-directional I/O with internal pull-up, alternate functions TXD and PCINT12. |
| 4 | PA1 | bidirectional | Port A bit 1 I/O with PCINT9, alternate function XTAL2 as output from the inverting oscillator amplifier. |
| 5 | PA0 | bidirectional | Port A bit 0 I/O with PCINT8, alternate function XTAL1/CLKI as input to the inverting oscillator amplifier and internal clock circuit. |
| 6 | PD2 | bidirectional | Port D bit 2 bi-directional I/O with internal pull-up, alternate functions CKOUT, XCK, INT0 and PCINT13. |
| 7 | PD3 | bidirectional | Port D bit 3 bi-directional I/O with internal pull-up, alternate functions INT1 and PCINT14. |
| 8 | PD4 | bidirectional | Port D bit 4 bi-directional I/O with internal pull-up, alternate functions T0 and PCINT15. |
| 9 | PD5 | bidirectional | Port D bit 5 bi-directional I/O with internal pull-up, alternate functions OC0B, T1 and PCINT16. |
| 10 | GND | power_in | Ground. |
| 11 | PD6 | bidirectional | Port D bit 6 bi-directional I/O with internal pull-up, alternate functions ICPI and PCINT17. |
| 12 | PB0 | bidirectional | Port B bit 0 bi-directional I/O with internal pull-up, alternate functions AIN0 and PCINT0. |
| 13 | PB1 | bidirectional | Port B bit 1 bi-directional I/O with internal pull-up, alternate functions AIN1 and PCINT1. |
| 14 | PB2 | bidirectional | Port B bit 2 bi-directional I/O with internal pull-up, alternate functions OC0A and PCINT2. |
| 15 | PB3 | bidirectional | Port B bit 3 bi-directional I/O with internal pull-up, alternate functions OC1A and PCINT3. |
| 16 | PB4 | bidirectional | Port B bit 4 bi-directional I/O with internal pull-up, alternate functions OC1B and PCINT4. |
| 17 | PB5 | bidirectional | Port B bit 5 bi-directional I/O with internal pull-up, alternate functions MOSI, DI, SDA and PCINT5. |
| 18 | PB6 | bidirectional | Port B bit 6 bi-directional I/O with internal pull-up, alternate functions MISO, DO and PCINT6. |
| 19 | PB7 | bidirectional | Port B bit 7 bi-directional I/O with internal pull-up, alternate functions USCK, SCL, SCK and PCINT7. |
| 20 | VCC | power_in | Digital supply voltage, 1.8 to 5.5 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | PDIP-20 |
| Category | Embedded Processors & Controllers |
| Pins | 20 |
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 | ||
| Speed grade 0-4 MHz supply range | 1.8 | 5.5 | V | 0 - 4 MHz | 1 | ||
| Speed grade 0-10 MHz supply range | 2.7 | 5.5 | V | 0 - 10 MHz | 1 | ||
| Speed grade 0-20 MHz supply range | 4.5 | 5.5 | V | 0 - 20 MHz | 1 | ||
| Operating temperature range (Industrial) | -40 | 85 | °C | Industrial | 1 | ||
| Flash endurance | 10000 | Write/Erase Cycles | 1 | ||||
| EEPROM endurance | 100000 | Write/Erase Cycles | 1 | ||||
| Active mode current | 190 | µA | 1.8V and 1MHz | 1 | |||
| Idle mode current | 24 | µA | 1.8V and 1MHz | 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, U or N: matte tin | 12 |
CAD (KiCad official)
- Symbol:
ATTINY4313-PU - Footprint:
Package_DIP:DIP-20_W7.62mm - 3D model: PDIP-20 (KiCad packages3D, STEP)
- 3D model files:
attiny4313-pu-etched.step/attiny4313-pu-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);attiny4313-pu.step/attiny4313-pu.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (22 pp, sha256
40038ab6257b67fe, retrieved 2026-10-26, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).