131 instructions – most
single clock cycle execution
32 x 8 general purpose
working registers
Fully static operation
Up to 20MIPS throughput at
20MHz
On-chip 2-cycle
Multiplier
High endurance
non-volatile memory segments
4/8/16KBytes of in-system
self-programmable Flash program memory
256/512/512Bytes EEPROM
512/1K/1KBytes internal
SRAM
Write/Erase cycles: 10,000
Flash/100,000 EEPROM
Data retention: 20 years at
85°C/100 years at 25°C
Optional boot code section
with independent lock bits
In-system programming
by on-chip boot program
True Read-While-Write
(RWW) operation
Programming lock for software
security
QTouch® library
support
Capacitive touch buttons, sliders and wheels
QTouch
and QMatrix® acquisition
Up to 64
sense channels
Peripheral
Features
Two 8-bit
Timer/Counters (TC) with separate prescaler and compare mode
16-bit
Timer/Counter with separate prescaler, compare mode, and capture mode
Real Time
Counter (RTC) with separate oscillator
Six Pulse
Width Modulation (PWM) channels
8-channel
10-bit Analog-to-Digital converter (ADC) with temperature measurement
Programmable serial USART with start-of-frame detection
Master/Slave Serial Interface
(SPI)
Byte-oriented Two-Wire serial
Interface (TWI), Philips I2C compatible
Programmable Watchdog Timer
(WDT) with separate on-chip oscillator
On-chip Analog Comparator
(AC)
Interrupt and Wake-up on pin
change
256-channel
capacitive touch and proximity sensing
Special
microcontroller features
Power-On Reset (POR) and
programmable brown-out detection (BOD)
Internal calibrated
oscillator
External and internal
interrupt sources
Six Sleep Modes: Idle, ADC
Noise Reduction, Power-Save, Power-Down, Standby, and Extended Standby
Unique device ID
I/O
27
programmable I/O pins
Packages
32-pin
TQFP, VFQFN
Operating
voltage
1.8V –
5.5V
Temperature
range
-40°C to
105°C
Speed grades
0 - 4MHz at 1.8-5.5V
0 - 10MHz at 2.7-5.5.V
0 - 20MHz at 4.5-5.5V
Power consumption at 1MHz, 1.8V,
25°C
Active mode: 0.35mA
Power-down mode: 0.23μA
Power-save mode: <1.4μA
(including 32kHz RTC)
The online versions of the documents are provided as a courtesy. Verify all content and data in the device’s PDF documentation found on the device product page.