Datasheet

2
32142D–06/2013
ATUC64/128/256L3/4U
• One Master/Slave Serial Peripheral Interface (SPI) with Chip Select Signals
– Up to 15 SPI Slaves can be Addressed
• Two Master and Two Slave Two-wire Interfaces (TWI), 400kbit/s I
2
C-compatible
• One 8-channel Analog-to-digital Converter (ADC) with up to 12 Bits Resolution
– Internal Temperature Sensor
• Eight Analog Comparators (AC) with Optional Window Detection
• Capacitive Touch (CAT) Module
– Hardware-assisted Atmel
®
AVR
®
QTouch
®
and Atmel
®
AVR
®
QMatrix Touch Acquisition
– Supports QTouch and QMatrix Capture from Capacitive Touch Sensors
• QTouch Library Support
– Capacitive Touch Buttons, Sliders, and Wheels
– QTouch and QMatrix Acquisition
• Audio Bitstream DAC (ABDACB) Suitable for Stereo Audio
• Inter-IC Sound (IISC) Controller
– Compliant with Inter-IC Sound (I
2
S) Specification
• On-chip Non-intrusive Debug System
– Nexus Class 2+, Runtime Control, Non-intrusive Data and Program Trace
– aWire Single-pin Programming Trace and Debug Interface, Muxed with Reset Pin
– NanoTrace Provides Trace Capabilities through JTAG or aWire Interface
• 64-pin TQFP/QFN (51 GPIO Pins), 48-pin TQFP/QFN/TLLGA (36 GPIO Pins)
• Six High-drive I/O Pins (64-pin Packages), Four High-drive I/O Pins (48-pin Packages)
• Single 1.62-3.6V Power Supply