component
ATTINY841-SSUR
Public Made by Adomby adom
Microchip Tech Pre-ordered MCUs, SOIC-14. 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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README
markdownATTINY841-SSUR
Microchip Tech · Pre-ordered MCUs · SOIC-14
ATTINY841-SSUR 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. |
| 2 | PB0 | bidirectional | Port B bit 0 bidirectional I/O with selectable pull-up; alternate functions PCINT8, ADC11, XTAL1 and CLKI (external clock input). |
| 3 | PB1 | bidirectional | Port B bit 1 bidirectional I/O with selectable pull-up; alternate functions PCINT9, ADC10, XTAL2 and INT0 (external interrupt 0). |
| 4 | PB3 | bidirectional | Port B bit 3 / RESET: active-low reset input (a low pulse longer than the minimum pulse length resets the device, even if the clock is not running), or a weak I/O pin if the reset pin is disabled; also PCINT11, ADC9 and dW (debugWIRE). |
| 5 | PB2 | bidirectional | Port B bit 2 bidirectional I/O with selectable pull-up; alternate functions PCINT10, ADC8, CLKO (system clock output), TOCC7, ICP2 and RXD0. |
| 6 | PA7 | bidirectional | Port A bit 7 bidirectional I/O with selectable pull-up and high sink capability; alternate functions PCINT7, ADC7, TOCC6, ICP1, TXD0 and SS. |
| 7 | PA6 | bidirectional | Port A bit 6 bidirectional I/O with selectable pull-up; alternate functions PCINT6, ADC6, ACO1, TOCC5, XCK1, SDA (TWI data) and MOSI. |
| 8 | PA5 | bidirectional | Port A bit 5 bidirectional I/O with selectable pull-up and high sink capability; alternate functions PCINT5, ADC5, ACO0, TOCC4, T2, TXD1 and MISO. |
| 9 | PA4 | bidirectional | Port A bit 4 bidirectional I/O with selectable pull-up; alternate functions PCINT4, ADC4, AIN11, TOCC3, T1, RXD1, SCL (TWI clock) and SCK. |
| 10 | PA3 | bidirectional | Port A bit 3 bidirectional I/O with selectable pull-up; alternate functions PCINT3, ADC3, AIN10, TOCC2, T0, XCK0 and SCK. |
| 11 | PA2 | bidirectional | Port A bit 2 bidirectional I/O with selectable pull-up; alternate functions PCINT2, ADC2, AIN01, TOCC1, RXD0 and SS. |
| 12 | PA1 | bidirectional | Port A bit 1 bidirectional I/O with selectable pull-up; alternate functions PCINT1, ADC1, AIN00, TOCC0, TXD0 and MOSI. |
| 13 | PA0 | bidirectional | Port A bit 0 bidirectional I/O with selectable pull-up; alternate functions PCINT0, ADC0, AREF (external voltage reference) and MISO. |
| 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 temperature (absolute maximum) | -55 | 125 | °C | Operating Temperature | 246 | ||
| Storage temperature | -65 | 150 | °C | Storage Temperature | 246 | ||
| Voltage on any pin except RESET | -0.5 | V | with respect to Ground; upper limit printed as VCC+0.5V | 246 | |||
| Voltage on RESET | -0.5 | 13 | V | with respect to Ground | 246 | ||
| Maximum operating voltage | 6 | V | 246 | ||||
| DC current per I/O pin | 40 | mA | 246 | ||||
| DC current VCC and GND pins | 200 | mA | 246 | ||||
| Supply voltage | VCC | 1.7 | 5.5 | V | 16 MHz speed grade, ordering information | 354 | |
| Operating temperature (industrial) | TA | -40 | 85 | °C | Industrial | 354 | |
| Output low voltage, RESET pin as I/O | VOL | 0.6 | V | VCC = 5V, IOL = 2 mA | 246 | ||
| Output low voltage, RESET pin as I/O | VOL | 0.5 | V | VCC = 3V, IOL = 1 mA | 246 | ||
| Output low voltage, RESET pin as I/O | VOL | 0.4 | V | VCC = 1.8V, IOL = 0.4mA | 246 | ||
| Output low voltage, standard sink I/O | VOL | 0.6 | V | VCC = 5V, IOL = 10 mA | 246 | ||
| Output low voltage, standard sink I/O | VOL | 0.5 | V | VCC = 3V, IOL = 5 mA | 246 | ||
| Output low voltage, standard sink I/O | VOL | 0.4 | V | VCC = 1.8V, IOL = 2mA | 246 | ||
| Output low voltage, high sink I/O | VOL | 0.6 | V | VCC = 5V, IOL = 20 mA | 246 | ||
| Output low voltage, high sink I/O | VOL | 0.5 | V | VCC = 3V, IOL = 10 mA | 246 | ||
| Output low voltage, high sink I/O | VOL | 0.4 | V | VCC = 1.8V, IOL = 4mA | 246 | ||
| Output low voltage, extra high sink I/O | VOL | 0.6 | V | VCC = 5V, IOL = 20 mA | 246 | ||
| Output low voltage, extra high sink I/O | VOL | 0.5 | V | VCC = 1.8V, IOL = 8mA | 246 | ||
| Output high voltage, except RESET pin | VOH | 4.3 | V | VCC = 5V, IOH = -10 mA | 247 | ||
| Output high voltage, except RESET pin | VOH | 2.5 | V | VCC = 3V, IOH = -5 mA | 247 | ||
| Output high voltage, except RESET pin | VOH | 1.4 | V | VCC = 1.8V, IOH = -2 mA | 247 | ||
| Input leakage current, I/O pin (absolute value), pin low | ILIL | 1 | µA | VCC = 5.5V, pin low | 247 | ||
| Input leakage current, I/O pin (absolute value), pin high | ILIH | 1 | µA | VCC = 5.5V, pin high | 247 | ||
| Input leakage current, analog comparator | ILIAC | -50 | 50 | nA | VCC = 5V, VIN = VCC/2 | 247 | |
| Reset pull-up resistor | RRST | 30 | 60 | kΩ | VCC = 5.5V, input low | 247 | |
| I/O pin pull-up resistor | RPU | 20 | 50 | kΩ | VCC = 5.5V, input low | 247 | |
| Power supply current, active | ICC | 0.23 | 0.6 | mA | Active 1 MHz, VCC = 2V | 247 | |
| Power supply current, active | ICC | 1.25 | 2 | mA | Active 4 MHz, VCC = 3V | 247 | |
| Power supply current, active | ICC | 4.2 | 6 | mA | Active 8 MHz, VCC = 5V | 247 | |
| Power supply current, idle | ICC | 0.03 | 0.2 | mA | Idle 1 MHz, VCC = 2V | 247 | |
| Power supply current, idle | ICC | 0.22 | 0.6 | mA | Idle 4 MHz, VCC = 3V | 247 | |
| Power supply current, idle | ICC | 0.94 | 1.5 | mA | Idle 8 MHz, VCC = 5V | 247 | |
| Power supply current, power-down, WDT enabled | ICC | 1.52 | 4 | µA | WDT enabled, VCC = 3V | 247 | |
| Power supply current, power-down, WDT disabled | ICC | 0.17 | 2 | µA | WDT disabled, VCC = 3V | 247 | |
| External clock frequency | 1/tCLCL | 0 | 4 | MHz | VCC = 1.8, 5.5V | 249 | |
| External clock frequency | 1/tCLCL | 0 | 8 | MHz | VCC = 2.7, 5.5V | 249 | |
| External clock frequency | 1/tCLCL | 0 | 12 | MHz | VCC = 4.5, 5.5V | 249 | |
| Internal bandgap voltage | VBG | 1.056 | 1.1 | 1.144 | V | VCC = 3.3V, TA = 25°C | 249 |
| Internal 1.1V reference voltage | VREF | 1.067 | 1.1 | 1.133 | V | VCC=1.7V to 5.5V at TA=-40°C to 85°C | 249 |
| Internal 2.2V reference voltage | VREF | 2.134 | 2.2 | 2.266 | V | VCC=2.3V to 5.5V at TA=-40°C to 85°C | 249 |
| Internal 4.096V reference voltage | VREF | 3.932 | 4.096 | 4.26 | V | VCC=4.2V to 5.5V at TA=-40°C to 85°C | 249 |
| Release threshold of power-on reset | VPOR | 1.1 | 1.4 | 1.6 | V | TA = -40 ... +85C; threshold where device is released from reset when voltage is rising | 250 |
| Activation threshold of power-on reset | VPOA | 0.6 | 1.3 | 1.6 | V | TA = -40 ... +85C | 250 |
| Brown-out threshold | VBOT | 1.7 | 1.8 | 2 | V | BODLEVEL[2:0] = 11X | 250 |
| Brown-out threshold | VBOT | 2.5 | 2.7 | 2.9 | V | BODLEVEL[2:0] = 101 | 250 |
| Brown-out threshold | VBOT | 4.1 | 4.3 | 4.5 | V | BODLEVEL[2:0] = 100 | 250 |
| Comparator input offset voltage | VAIO | 10 | 40 | mV | VCC = 5V, VIN = VCC / 2 | 250 | |
| Comparator input leakage current | ILAC | -50 | 50 | nA | VCC = 5V, VIN = VCC / 2 | 250 | |
| ADC resolution | 10 | Bits | TA = -40 ... +85C. VCC = 1.7, 5.5V | 251 | |||
| ADC conversion time | 13 | 260 | µs | Free Running Conversion | 251 | ||
| ADC clock frequency | 50 | 1000 | kHz | 251 | |||
| Factory calibration accuracy, internal 8MHz oscillator | -2 | 2 | % | 8.0 MHz, VCC 2.7V, 4.0V, 0°C, 85C | 248 | ||
| Factory calibration accuracy, internal 32kHz oscillator | -30 | 30 | % | 32kHz, VCC 1.7, 5.5V, -40C to +85C | 248 | ||
| TWI SCL clock frequency | fSCL | 0 | 400 | kHz | TWHNM = 0 | 252 | |
| Serial programming oscillator frequency | 1/tCLCL | 0 | 4 | MHz | TA = -40 ... +85C, VCC = 1.7, 5.5V | 253 | |
| Serial programming oscillator frequency | 1/tCLCL | 0 | 16 | MHz | VCC = 4.5V - 5.5V | 253 |
CAD (KiCad official)
- Symbol:
ATTINY841-SSUR - Footprint:
Package_SO:SOIC-14_3.9x8.7mm_P1.27mm - 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files:
attiny841-ssur-etched.step/attiny841-ssur-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);attiny841-ssur.step/attiny841-ssur.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (366 pp, sha256
204e8fd9bfe23322, retrieved 2026-10-22, tier: manufacturer) - 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).