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ATTINY1616-SFR
Public Made by Adomby adom
Microchip Tech Microcontrollers (MCU/MPU/SOC), SOIC-20-300mil. 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
markdownATTINY1616-SFR
Microchip Tech · Microcontrollers (MCU/MPU/SOC) · SOIC-20-300mil
ATTINY1616-SFR from Microchip Tech, in a SOIC-20-300mil. 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 | VDD | power_in | Supply pin; the datasheet gives an operating supply range of 1.8 V to 5.5 V (absolute maximum -0.5 V to 6 V). |
| 2 | PA4 | bidirectional | Port A bit 4 I/O, multiplexed with AIN4, AIN0, PTC X0/Y0, USART0 XDIR, SPI0 SS, TCA0 WO4, TCD0 WOA and CCL LUT0-OUT; I/O sink/source current is limited to ±40 mA. |
| 3 | PA5 | bidirectional | Port A bit 5 I/O, multiplexed with VREFA, AIN5, AIN1, PTC X1/Y1, AINN0, TCA0 WO5 and TCB0/TCD0 WOB outputs; I/O sink/source current is limited to ±40 mA. |
| 4 | PA6 | bidirectional | Port A bit 6 I/O, multiplexed with AIN6, AIN2, PTC X2/Y2, AINN0, AINP0 and AINP1 and the analog comparator output; I/O sink/source current is limited to ±40 mA. |
| 5 | PA7 | bidirectional | Port A bit 7 I/O, multiplexed with AIN7, AIN3, PTC X3/Y3, AINP0, AINN0 and CCL LUT1-OUT; I/O sink/source current is limited to ±40 mA. |
| 6 | PB5 | bidirectional | Port B bit 5 I/O, multiplexed with CLKOUT, AIN8, PTC X12/Y12, AINP1, AINP2 and TCA0 WO2; I/O sink/source current is limited to ±40 mA. |
| 7 | PB4 | bidirectional | Port B bit 4 I/O, multiplexed with AIN9, PTC X13/Y13, AINN1, AINP3, TCA0 WO1 and CCL LUT0-OUT; I/O sink/source current is limited to ±40 mA. |
| 8 | PB3 | bidirectional | Port B bit 3 I/O, which is also the 32.768 kHz crystal oscillator input TOSC1 and is multiplexed with USART0 RxD and TCA0 WO0; I/O sink/source current is limited to ±40 mA. |
| 9 | PB2 | bidirectional | Port B bit 2 I/O, which is also the 32.768 kHz crystal oscillator output TOSC2 and is multiplexed with EVOUT1, USART0 TxD and TCA0 WO2; I/O sink/source current is limited to ±40 mA. |
| 10 | PB1 | bidirectional | Port B bit 1 I/O, multiplexed with AIN10, PTC X4/Y4, AINP2, USART0 XCK, TWI0 SDA and TCA0 WO1; I/O sink/source current is limited to ±40 mA. |
| 11 | PB0 | bidirectional | Port B bit 0 I/O, multiplexed with AIN11, PTC X5/Y5, AINP1, AINP2, USART0 XDIR, TWI0 SCL and TCA0 WO0; I/O sink/source current is limited to ±40 mA. |
| 12 | PC0 | bidirectional | Port C bit 0 I/O, multiplexed with AIN6, PTC X6/Y6, SPI0 SCK, TCB0 WO and TCD0 WOC; I/O sink/source current is limited to ±40 mA. |
| 13 | PC1 | bidirectional | Port C bit 1 I/O, multiplexed with AIN7, PTC X7/Y7, SPI0 MISO, TCD0 WOD and CCL LUT1-OUT; I/O sink/source current is limited to ±40 mA. |
| 14 | PC2 | bidirectional | Port C bit 2 I/O, multiplexed with EVOUT2, AIN8, PTC X9/Y8 and SPI0 MOSI; I/O sink/source current is limited to ±40 mA. |
| 15 | PC3 | bidirectional | Port C bit 3 I/O, multiplexed with AIN9, PTC X9/Y9, SPI0 SS, TCA0 WO3 and CCL LUT1-IN0; I/O sink/source current is limited to ±40 mA. |
| 16 | PA0/RESET/UPDI | bidirectional | Port A bit 0 I/O shared with RESET and UPDI, where the function is selected by the RSTPINCFG fuse (GPIO, RESET or UPDI; 0x3 is reserved for lower pin counts), and it is also multiplexed with AIN0 and CCL LUT0-IN0. |
| 17 | PA1 | bidirectional | Port A bit 1 I/O, multiplexed with BREAK, AIN1, USART0 TxD, SPI0 MOSI, TWI0 SDA and CCL LUT0-IN1; I/O sink/source current is limited to ±40 mA. |
| 18 | PA2 | bidirectional | Port A bit 2 I/O, multiplexed with EVOUT0, AIN2, USART0 RxD, SPI0 MISO, TWI0 SCL and CCL LUT0-IN2; I/O sink/source current is limited to ±40 mA. |
| 19 | PA3/EXTCLK | bidirectional | Port A bit 3 I/O, which is also the external clock input EXTCLK and is multiplexed with AIN3, USART0 XCK, SPI0 SCK, TCA0 WO3 and TCB1 WO; I/O sink/source current is limited to ±40 mA. |
| 20 | GND | power_in | Ground reference pin for the device. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SOIC-20-300mil |
| 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 |
|---|---|---|---|---|---|---|---|
| Power supply voltage (operational range, ATtiny1616-SFR) | 1.8 | 5.5 | V | Industrial -40°C to +125°C (ATtiny1616-SFR ordering code) | 12 | ||
| Speed grade: maximum frequency at 1.8V-5.5V | 0 | 5 | MHz | VDD 1.8V - 5.5V | 2 | ||
| Speed grade: maximum frequency at 2.7V-5.5V | 0 | 10 | MHz | VDD 2.7V - 5.5V | 2 | ||
| Speed grade: maximum frequency at 4.5V-5.5V | 0 | 20 | MHz | VDD 4.5V - 5.5V | 2 | ||
| Operating temperature range (SFR, Industrial) | -40 | 125 | °C | Industrial grade, ATtiny1616-SFR (-40°C to +125°C) | 12 |
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 | configurations, including indium tin oxide (ITO) sensor grids. The PTC requires one pin per X-line and one pin per Y-line. | 383 |
CAD (KiCad official)
- Symbol:
ATTINY1616-SFR - Footprint:
Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm - 3D model: SOIC-20-300mil (KiCad packages3D, STEP)
- 3D model files:
attiny1616-sfr-etched.step/attiny1616-sfr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);attiny1616-sfr.step/attiny1616-sfr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (493 pp, sha256
06e23fa8222e1a74, retrieved 2026-10-18, 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).