64B of User Row in
nonvolatile memory that can retain data during a chip erase and be
programmed while the device is locked
64B of Boot Row in
nonvolatile memory, accessible only when running from the boot section
Write/erase endurance
Flash: 10,000
cycles
EEPROM: 100,000
cycles
Data retention: 40 years at
55°C
System:
Power-On Reset (POR)
circuit
Brown-out Detector (BOD) with
user-programmable levels
Voltage Level Monitor (VLM)
with an interrupt at a programmable level above the BOD level
Clock options:
High-precision
internal oscillator with a selectable frequency of up to 20 MHz (OSCHF)
Auto-tuning
for improved internal oscillator accuracy
Internal ultra-low
power 32.768 kHz oscillator (OSC32K)
External 32.768 kHz
crystal oscillator (XOSC32K)
External clock
input
Single-pin Unified Program
and Debug Interface (UPDI)
Three sleep modes:
Idle mode, with all
peripherals running for immediate wake-up
Standby mode, with
configurable operation of the selected peripherals
Power-Down mode, with
full data retention
Peripherals:
Two 16-bit Timer/Counters
type B (TCB) with capture and signal measurement capabilities
One 16-bit Timer/Counter type
E (TCE) with three compare channels for PWM and waveform generator
One 16-bit Real-Time Counter
(RTC) that can run from an external crystal or an internal oscillator
One Universal Synchronous and
Asynchronous Receiver and Transmitter (USART):
Fractional baud rate
generator, auto-baud, start-of-frame detection, and collision
detection
Supports RS-485, LIN
Host/Client, RTS/CTS hardware handshaking, and SPI Host
protocols
Protocol conversion
for accelerated single-wire communication
One Host/Client Serial
Peripheral Interface (SPI)
One Two-Wire Interface (TWI)
with dual address match:
Independent host and
client operation (Dual mode)
Inter-Integrated
Circuit (I2C) compatible
Standard mode (Sm,
100 kHz)
Fast mode (Fm, 400
kHz)
Fast mode Plus (Fm+,
1 MHz)
4-channel Event System for
CPU-independent and predictable inter-peripheral signaling
Configurable Custom Logic
(CCL) with up to four programmable Look-up Tables (LUTs)
One Analog Comparator
(AC)
One 10-bit, 166 ksps, Analog-to-Digital Converter (ADC)
Peripheral Touch Controller
(PTC) with Driven Shield+ and Boost Mode technologies for capacitive touch
buttons, sliders, wheels and 2D surfaces
Supports up to 27 PTC
pins for both self-capacitance and mutual-capacitance channels
Supports External
Integration Capacitors for large sensors
Uses the 10-bit ADC
peripheral for signal acquisition and conversion
Internal 0.512V, 1.024V,
2.048V, 2.500V, 4.096V voltage references, with an external reference
option
Automated Cyclic Redundancy
Check (CRC) Flash program memory scan
Watchdog Timer (WDT) with
Window mode and a separate on-chip oscillator
External interrupts on all
general purpose pins
I/O and Packages:
12 to 28 programmable I/O
pins
14-pin SOIC and TSSOP
20-pin SSOP and VQFN 3x3 with
Wettable Flanks
28-pin SSOP, SPDIP and VQFN
4x4 with Wettable Flanks
32-pin TQFP 7x7 and VQFN 5x5
with Wettable Flanks
Temperature Ranges:
Industrial: -40°C to 85°C
ambient
Extended: -40°C to 125°C
ambient
DS40002685A
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.
