Universal Serial Bus Features

• USB v2.0 On-The-Go (OTG) Compliant

• Dual Role Capable – Can Act as Either Host or Peripheral

• Low-Speed (1.5 Mb/s) and Full-Speed (12 Mb/s)

USB Operation in Host mode

• Full-Speed USB Operation in Device mode

• High-Precision PLL for USB

• USB Device mode Operation from FRC Oscillator –

No Crystal Oscillator Required

• Supports up to 32 Endpoints (16 bidirectional):

- USB module can use any RAM location on the

device as USB endpoint buffers

• On-Chip USB Transceiver with Interface for Off-Chip

USB Transceiver

• Supports Control, Interrupt, Isochronous and

Bulk Transfers

• On-Chip Pull-up and Pull-Down Resistors

Analog Features

• 10/12-Bit, up to 24-Channel Analog-to-Digital (A/D)

Converter:

- 12-bit conversion rate of 200 ksps

- Auto-scan and threshold compare features

- Conversion available during Sleep

• Three Rail-to-Rail, Enhanced Analog Comparators

with Programmable Input/Output Configuration

• Charge Time Measurement Unit (CTMU):

- Used for capacitive touch sensing, up to 24 channels

- Time measurement down to 100 ps resolution

Low-Power Features

• Sleep and Idle modes Selectively Shut Down

Peripherals and/or Core for Substantial Power

Reduction and Fast Wake-up

• Doze mode Allows CPU to Run at a Lower Clock

Speed than Peripherals

• Alternate Clock modes Allow On-the-Fly Switching to

a Lower Clock Speed for Selective Power Reduction

• Wide Range Digitally Controlled Oscillator (DCO) for

Fast Start-up and Low-Power Operation

Special Microcontroller Features

• Large, Dual Partition Flash Program Array:

- Capable of holding two independent software

applications, including bootloader

- Permits simultaneous programming of one partition

while executing application code from the other

- Allows run-time switching between

Active Partitions

• 10,000 Erase/Write Cycle Endurance, Typical

• Data Retention: 20 Years Minimum

• Self-Programmable under Software Control

• Supply Voltage Range of 2.0V to 3.6V

• Operating Ambient Temperature Range of

-40°C to +85°C

• On-Chip Voltage Regulators (1.8V) for Low-Power

Operation

• Programmable Reference Clock Output

• In-Circuit Serial Programming™ (ICSP™) and

In-Circuit Emulation (ICE) via 2 Pins

• JTAG Boundary Scan Support

• Fail-Safe Clock Monitor Operation:

- Detects clock failure and switches to on-chip,

low-power RC Oscillator

• Power-on Reset (POR), Brown-out Reset (BOR),

Power-up Timer (PWRT) and Oscillator Start-up

Timer (OST)

• Programmable High/Low-Voltage Detect (HLVD)

• Flexible Watchdog Timer (WDT) with its Own

RC Oscillator for Reliable Operation