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ATTINY25V-10SU

Microchip Tech · MICROCHIP · SOIC-8-208mil

ATTINY25V-10SU from Microchip Tech, in a SOIC-8-208mil. 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 PB5 bidirectional Port B bit 5 is a bi-directional I/O pin with selectable internal pull-up that is tri-stated during reset; as the RESET input, a low level longer than the minimum pulse length generates a reset, while shorter pulses are not guaranteed to reset the device.
2 PB3 bidirectional Port B bit 3 is a bi-directional I/O pin with selectable internal pull-up that is tri-stated during reset, and on ATtiny25 it is exchanged with PB4 in ATtiny15 Compatibility Mode.
3 PB4 bidirectional Port B bit 4 is a bi-directional I/O pin with selectable internal pull-up that is tri-stated during reset, and on ATtiny25 it is exchanged with PB3 in ATtiny15 Compatibility Mode.
4 GND power_in Ground reference pin for the device.
5 PB0 (MOSI/DI/SDA/AIN0/OC0A/OC1A/AREF/PCINT0) bidirectional Port B bit 0 is a bi-directional I/O pin with symmetrical high sink and source drive, selectable internal pull-up, and tri-state during reset.
6 PB1 (MISO/DO/AIN1/OC0B/OC1A/PCINT1) bidirectional Port B bit 1 is a bi-directional I/O pin with symmetrical high sink and source drive, selectable internal pull-up, and tri-state during reset.
7 PB2 (SCK/USCK/SCL/ADC1/T0/INT0/PCINT2) bidirectional Port B bit 2 is a bi-directional I/O pin with symmetrical high sink and source drive, selectable internal pull-up, and tri-state during reset.
8 VCC power_in Supply voltage, specified as 1.8 to 5.5 V for the ATtiny25V.

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package SOIC-8-208mil
Category Embedded Processors & Controllers
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Input Low-voltage, except XTAL1 and RESET pin VIL -0.5 V VCC = 1.8V - 2.4V 161
Input Low-voltage, XTAL1 pin, External Clock Selected VIL1 -0.5 V VCC = 1.8V - 5.5V 161
Input Low-voltage, RESET pin VIL2 -0.5 V VCC = 1.8V - 5.5V 161
Input Low-voltage, RESET pin as I/O VIL3 -0.5 V VCC = 1.8V - 2.4V 161
Output Low-voltage, Port B (except RESET) VOL 0.6 V IOL = 10 mA, VCC = 5V 161
Output Low-voltage, Port B (except RESET) VOL 0.5 V IOL = 5 mA, VCC = 3V 161
Output High-voltage, Port B (except RESET) VOH 4.3 V IOH = -10 mA, VCC = 5V 161
Output High-voltage, Port B (except RESET) VOH 2.5 V IOH = -5 mA, VCC = 3V 161
Input Leakage Current I/O Pin, pin low IIL 1 µA VCC = 5.5V, pin low 161
Input Leakage Current I/O Pin, pin high IIH 1 µA VCC = 5.5V, pin high 161
Reset Pull-up Resistor RRST 30 60 k VCC = 5.5V, input low 161
I/O Pin Pull-up Resistor Rpu 20 50 k VCC = 5.5V, input low 162
Power Supply Current, Active mode ICC 0.3 0.55 mA Active 1 MHz, VCC = 2V 162
Power Supply Current, Active mode ICC 1.5 2.5 mA Active 4 MHz, VCC = 3V 162
Power Supply Current, Active mode ICC 5 8 mA Active 8 MHz, VCC = 5V 162
Power Supply Current, Idle mode ICC 0.1 0.2 mA Idle 1 MHz, VCC = 2V 162
Power Supply Current, Idle mode ICC 0.35 0.6 mA Idle 4 MHz, VCC = 3V 162
Power Supply Current, Idle mode ICC 1.2 2 mA Idle 8 MHz, VCC = 5V 162
Power Supply Current, Power-down mode ICC 10 µA Power-down mode, WDT enabled, VCC = 3V 162
Power Supply Current, Power-down mode ICC 2 µA Power-down mode, WDT disabled, VCC = 3V 162
Calibrated Internal RC Oscillator accuracy, factory calibration -10 10 % Target 8.0 MHz, VCC 3V, 25C 164
Calibrated Internal RC Oscillator accuracy, user calibration -1 1 % Fixed frequency 6-8 MHz; fixed voltage 1.8V-5.5V; fixed temperature -40C to +85C 164
Clock Frequency (external clock) 1/tCLCL 0 4 MHz VCC = 1.8 - 5.5V 164
Clock Period (external clock) tCLCL 250 ns VCC = 1.8 - 5.5V 164
High Time (external clock) tCHCX 100 ns VCC = 1.8 - 5.5V 164
Low Time (external clock) tCLCX 100 ns VCC = 1.8 - 5.5V 164
Rise Time (external clock) tCLCH 2 µs VCC = 1.8 - 5.5V 164
Fall Time (external clock) tCHCL 2 µs VCC = 1.8 - 5.5V 164
Change in period from one clock cycle to the next tCLCL 2 % VCC = 1.8 - 5.5V 164
Minimum pulse width on RESET Pin tRST 2.5 µs VCC = 3V 165
Brown-out Detector Hysteresis VHYST 50 mV 165
Min Pulse Width on Brown-out Reset tBOD 2 µs 165
Bandgap reference voltage VBG 1 1.1 1.2 V VCC = 5.5V, TA = 25C 165
Bandgap reference start-up time tBG 40 70 µs VCC = 2.7V, TA = 25C 165
BODLEVEL fuse 110 threshold 1.7 1.8 2 V BODLEVEL[2:0] = 110 166
BODLEVEL fuse 101 threshold 2.5 2.7 2.9 V BODLEVEL[2:0] = 101 166
Absolute accuracy, single ended 2 LSB VREF = 4V, VCC = 4V, ADC clock = 200 kHz 167
Absolute accuracy, single ended 3 LSB VREF = 4V, VCC = 4V, ADC clock = 1 MHz 167
Absolute accuracy, single ended, Noise Reduction Mode 1.5 LSB VREF = 4V, VCC = 4V, ADC clock = 200 kHz, Noise Reduction Mode 167
Absolute accuracy, single ended, Noise Reduction Mode 2.5 LSB VREF = 4V, VCC = 4V, ADC clock = 1 MHz, Noise Reduction Mode 167
Integral Non-linearity (INL) 1 LSB VREF = 4V, VCC = 4V, ADC clock = 200 kHz 167
Differential Non-linearity (DNL) 0.5 LSB VREF = 4V, VCC = 4V, ADC clock = 200 kHz 167
Gain Error 2.5 LSB VREF = 4V, VCC = 4V, ADC clock = 200 kHz 167
Offset Error 1.5 LSB VREF = 4V, VCC = 4V, ADC clock = 200 kHz 167
ADC Conversion Time 14 280 µs Free Running Conversion 167
ADC Clock Frequency 50 1000 kHz 167
Internal Voltage Reference VINT 1 1.1 1.2 V 167
Storage Temperature -65 150 °C 161
Operating Temperature -55 125 °C 161
Voltage on any pin except RESET with respect to Ground -0.5 V 161
Voltage on RESET with respect to Ground -0.5 13 V 161
Maximum Operating Voltage 6 V 161
DC Current per I/O Pin 40 mA 161
DC Current VCC and GND Pins 200 mA 161
Operating voltage (ATtiny25V) VCC 1.8 5.5 V ATtiny25V-10SU, V variant 1
Speed grade, clock frequency (ATtiny25V) 0 4 MHz ATtiny25V, 1.8 - 5.5V 1
Speed grade, clock frequency (ATtiny25V) 0 10 MHz ATtiny25V, 2.7 - 5.5V 1
Operating temperature, industrial range TA -40 85 °C Industrial range 161

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 3. Code indicators: H = NiPdAu lead finish, U/N = matte tin, R = tape & reel. 4. Can also be supplied in wafer form. Contact your local Atmel sales office for ordering information and minimum quantiti 204

CAD (KiCad official)

  • Symbol: ATTINY25V-10SU
  • Footprint: Package_SO:SOIC-8_5.3x5.3mm_P1.27mm
  • 3D model: SOIC-8-208mil (KiCad packages3D, STEP)
  • 3D model files: attiny25v-10su-etched.step / attiny25v-10su-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); attiny25v-10su.step / attiny25v-10su.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (234 pp, sha256 d46a1eae33c9f6e7, retrieved 2026-11-05, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF