# ATTINY2313V-10MU

**Microchip Tech** · Pre-ordered MCUs · QFN-20-EP(4x4)

ATTINY2313V-10MU from Microchip Tech, in a QFN-20-EP(4x4). 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 | PD1 | bidirectional | Port D bit 1, bi-directional I/O with internal pull-up and alternate function TXD (USART transmit). |
| 2 | PA1 | bidirectional | Port A bit 1, bi-directional I/O with internal pull-up; alternate function XTAL2, the output from the inverting oscillator amplifier. |
| 3 | PA0 | bidirectional | Port A bit 0, bi-directional I/O with internal pull-up; alternate function XTAL1, the input to the inverting oscillator amplifier and internal clock circuit. |
| 4 | PD2 | bidirectional | Port D bit 2, bi-directional I/O with internal pull-up and alternate functions CKOUT/XCK/INT0. |
| 5 | PD3 | bidirectional | Port D bit 3, bi-directional I/O with internal pull-up and alternate function INT1. |
| 6 | PD4 | bidirectional | Port D bit 4, bi-directional I/O with internal pull-up and alternate function T0. |
| 7 | PD5 | bidirectional | Port D bit 5, bi-directional I/O with internal pull-up and alternate functions OC0B/T1. |
| 8 | GND | power_in | Ground. |
| 9 | PD6 | bidirectional | Port D bit 6, bi-directional I/O with internal pull-up and alternate function ICP. |
| 10 | PB0 | bidirectional | Port B bit 0, bi-directional I/O with internal pull-up and alternate functions AIN0/PCINT0. |
| 11 | PB1 | bidirectional | Port B bit 1, bi-directional I/O with internal pull-up and alternate functions AIN1/PCINT1. |
| 12 | PB2 | bidirectional | Port B bit 2, bi-directional I/O with internal pull-up and alternate functions OC0A/PCINT2. |
| 13 | PB3 | bidirectional | Port B bit 3, bi-directional I/O with internal pull-up and alternate functions OC1A/PCINT3. |
| 14 | PB4 | bidirectional | Port B bit 4, bi-directional I/O with internal pull-up and alternate functions OC1B/PCINT4. |
| 15 | PB5 | bidirectional | Port B bit 5, bi-directional I/O with internal pull-up and alternate functions MOSI/DI/SDA/PCINT5. |
| 16 | PB6 | bidirectional | Port B bit 6, bi-directional I/O with internal pull-up and alternate functions MISO/DO/PCINT6. |
| 17 | PB7 | bidirectional | Port B bit 7, bi-directional I/O with internal pull-up and alternate functions UCSK/SCK/PCINT7. |
| 18 | VCC | power_in | Digital supply voltage, 1.8 - 5.5V for the ATtiny2313V. |
| 19 | PA2 | bidirectional | Port A bit 2, bi-directional I/O with internal pull-up; alternate function RESET/dW, where a low level longer than the minimum pulse length generates a reset. |
| 20 | PD0 | bidirectional | Port D bit 0, bi-directional I/O with internal pull-up and alternate function RXD (USART receive). |
| 21 | EP | passive | Exposed bottom pad, which the datasheet says should be soldered to ground. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | QFN-20-EP(4x4) |
| Category | Embedded Processors & Controllers |
| Pins | 21 |

## 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 supply voltage (ATtiny2313V) |  | 1.8 |  | 5.5 | V | ATtiny2313V, per Features list | 1 |
| Operating temperature range (Industrial) |  | -40 |  | 85 | °C | Industrial operation range, ordering table for ATtiny2313V-10MU | 11 |
| Maximum clock frequency (speed grade, ATtiny2313V) |  | 0 |  | 4 | MHz | 1.8 - 5.5 V | 1 |
| Maximum clock frequency (speed grade, ATtiny2313V) |  | 0 |  | 10 | MHz | 2.7 - 5.5 V | 1 |
| Power-down mode current |  |  |  | 0.1 | µA | Power-down mode, at 1.8 V | 1 |
| Active mode supply current |  |  | 230 |  | µA | 1 MHz, 1.8 V, active mode | 1 |
| Active mode supply current (including oscillator) |  |  | 20 |  | µA | 32 kHz, 1.8 V, including oscillator | 1 |

## CAD (KiCad official)

- Symbol: `ATTINY2313V-10MU`
- Footprint: `Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm`
- 3D model: QFN-20-EP(4x4) (KiCad packages3D, STEP)
- 3D model files: `attiny2313v-10mu-etched.step` / `attiny2313v-10mu-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `attiny2313v-10mu.step` / `attiny2313v-10mu.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Microchip Tech datasheet](docs/attiny2313v-10mu-datasheet.pdf) (20 pp, sha256 `5c57a55a56c62f04`, retrieved 2026-10-30, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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](docs/attiny2313v-10mu-datasheet.pdf)