Description
28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers
- Precision Internal Oscillator: – Factory calibrated to ±1% – Software selectable frequency range of 8 MHz to 31 kHz – Software tunable – Two-Speed Start-up mode – Crystal fail detect for critical applications – Clock mode switching during operation for power savings
- Power-Saving Sleep mode
- Wide Operating Voltage Range (2.0V-5.5V)
- Industrial and Extended Temperature Range
- Power-on Reset (POR)
- Power-up Timer (PWRT) and Oscillator Start-up Timer (OST)
- Brown-out Reset (BOR) with Software Control Option
- Enhanced Low-Current Watchdog Timer (WDT) with On-Chip Oscillator (software selectable nominal 268 seconds with full prescaler) with software enable
- Multiplexed Master Clear with Pull-up/Input Pin
- Programmable Code Protection
- High Endurance Flash/EEPROM Cell: – 100,000 write Flash endurance – 1,000,000 write EEPROM endurance – Flash/Data EEPROM retention: > 40 years
- Program Memory Read/Write during run time
- In-Circuit Debugger (on board) Low-Power Features:
- Standby Current: – 50 nA @ 2.0V, typical
- Operating Current: – 11 µA @ 32 kHz, 2.0V, typical – 220 µA @ 4 MHz, 2.0V, typical
- Watchdog Timer Current: – 1 µA @ 2.0V, typical Peripheral Features:
- 24/35 I/O Pins with Individual Direction Control: – High current source/sink for direct LED drive – Interrupt-on-Change pin – Individually programmable weak pull-ups – Ultra Low-Power Wake-up (ULPWU)
- Analog Comparator Module with: – Two analog comparators – Programmable on-chip voltage reference (CVREF) module (% of VDD) – Fixed voltage reference (0.6V) – Comparator inputs and outputs externally accessible – SR Latch mode – External Timer1 Gate (count enable)
- A/D Converter: – 10-bit resolution and 11/14 channels
- Timer0: 8-bit Timer/Counter with 8-bit Programmable Prescaler
- Enhanced Timer1: – 16-bit timer/counter with prescaler – External Gate Input mode – Dedicated low-power 32 kHz oscillator
- Timer2: 8-bit Timer/Counter with 8-bit Period Register, Prescaler and Postscaler
- Enhanced Capture, Compare, PWM+ Module: – 16-bit Capture, max. resolution 12.5 ns – Compare, max. resolution 200 ns – 10-bit PWM with 1, 2 or 4 output channels, programmable “dead time”, max. frequency 20 kHz – PWM output steering control
- Capture, Compare, PWM Module: – 16-bit Capture, max. resolution 12.5 ns – 16-bit Compare, max. resolution 200 ns – 10-bit PWM, max. frequency 20 kHz
- Enhanced USART Module: – Supports RS-485, RS-232, and LIN 2.0 – Auto-Baud Detect – Auto-Wake-Up on Start bit
- In-Circuit Serial ProgrammingTM (ICSPTM) via Two Pins
- Master Synchronous Serial Port (MSSP) Module supporting 3-wire SPI (all 4 modes) and I2C™ Master and Slave Modes with I2C Address Mask
