Datasheet

6
32142D–06/2013
ATUC64/128/256L3/4U
2.2 Configuration Summary
Table 2-1. Configuration Summary
Feature ATUC256L3U ATUC128L3U ATUC64L3U ATUC256L4U ATUC128L4U ATUC64L4U
Flash 256KB 128KB 64KB 256KB 128KB 64KB
SRAM 32KB 16KB 32KB 16KB
GPIO 51 36
High-drive pins 6 4
External Interrupts 6
TWI 2
USART 4
Peripheral DMA Channels 12
Peripheral Event System 1
SPI 1
Asynchronous Timers 1
Timer/Counter Channels 6
PWM channels 36
Frequency Meter 1
Watchdog Timer 1
Power Manager 1
Secure Access Unit 1
Glue Logic Controller 1
Oscillators
Digital Frequency Locked Loop 20-150MHz (DFLL)
Phase Locked Loop 40-240MHz (PLL)
Crystal Oscillator 0.45-16MHz (OSC0)
Crystal Oscillator 32KHz (OSC32K)
RC Oscillator 120MHz (RC120M)
RC Oscillator 115kHz (RCSYS)
RC Oscillator 32kHz (RC32K)
ADC 8-channel 12-bit
Temperature Sensor 1
Analog Comparators 8
Capacitive Touch Module 1
JTAG 1
aWire 1
USB 1
Audio Bitstream DAC 1 0
IIS Controller 1 0
Max Frequency 50MHz
Packages TQFP64/QFN64 TQFP48/QFN48/TLLGA48