ATtiny1634 Datasheet, Pinout, Minimal Circuit, Maximum Frequency Calculator

The ATtiny1634 has 18 I/O lines, and comes in QFN and SOIC packages. There is no DIP package available. It has both an 8MHz oscillator and a 32kHz oscillator onboard. Unlike other ATtiny MCU's it has two full USARTS as well as an I2C slave and the typical USI block. It also has 12 ADC channels, and one 8-bit and one 16-bit timer.

The ATtiny1634 is a new entry in the ATtiny family. The ATtiny1634 has a very adequate I/O range for many applications. With 16kB Flash and 1kB RAM, the ATtiny1634 is a "giant" among ATtiny's.

Power Supply vs. Maximum Frequency

The calculator below provides a way to find the ATtiny1634's maximum operating frequency for any valid power supply voltage (1.8 to 5.5). Enter the power supply voltage and click "Calculate" to find the specified maximum at your Vcc.

Maximum Frequency Calculator for ATtiny1634

ATtiny1634 Features
FeatureATtiny1634
Flash 16kB
EEPROM 256B
RAM 1kB
I/O Pins 18
Interrupts 28
USARTS 2
USI 1
SPI 0
TWI 0
ADC Channels 12
RT Counter (w/osc)0
Timers (8-bit) 1
Timers (16-bit) 1
PWM (8-bit) 2
PWM (16-bit) 2
Price (1's) $1.93
CharacteristicValue
Power Consumption (approximate) 0.73mA/MHz
Maximum I/O Current (per pin) 40mA
Maximum I/O Current (all ports)
Maximum I/O Current (total) 200mA

ATtiny1634 Datasheet

Link to ATtiny1634 datasheet from Atmel's website.

ATtiny1634 Pinout

ATtiny1634-SU pinout

ATtiny1634-MU pinout

ATtiny1634 "Minimal" Circuit Diagram

The diagram below shows a about the most simple circuit you can build.

ATtiny1634 minimal schematic diagram