Features
■ Memories
– 8 or 16 Kbyte Program memory
(ROM or Dual voltage FLASH)
with read-write protection
– In-Application and In-Circuit Programming for
FLASH versions
– 384 to 768 bytes RAM (128-byte stack)
■ Clock, Reset and Supply Management
– Enhanced Reset System (Power On Reset)
– Low Voltage Detector (LVD)
– Clock-out capability
– 6 or 12 MHz Oscillator (8, 4, 2, 1 MHz internal
frequencies)
– 3 Power saving modes
■ USB (Universal Serial Bus) Interface
– DMA for low speed applications compliant
with USB specification (version 2.0):
– Integrated 3.3V voltage regulator and trans
ceivers
– Suspend and Resume operations
– 3 Endpoints
■ Up to 31 I/O Ports
– Up to 31 multifunctional bidirectional I/O lines
– Up to 12 External interrupts (3 vectors)
– 13 alternate function lines
– 8 high sink outputs
(8 mA@0.4 V/20 mA@1.3 V)
– 2 true open drain pins (N buffer 8 mA@0.4 V)
■ 3 Timers
– Configurable watchdog timer (8 to 500 ms
timeout)
– 8-bit Auto Reload Timer (ART) with 2 Input
Captures, 2 PWM outputs and External Clock
– 8-bit Time Base Unit (TBU) for generating periodic interrupts cascadable with ART
■ Analog Peripheral
– 10-bit A/D Converter with up to 8 input pins.
■ 2 Communications Interfaces
– Asynchronous Serial Communication inter
face
– Synchronous Serial Peripheral Interface
■ Instruction Set
– 8-bit data manipulation
– 63 basic instructions
– 17 main addressing modes
– 8 x 8 unsigned multiply instruction
– True bit manipulation
■ Nested interrupts
■ Development Tools
– Full hardware/software development package