Description
28/40/44/64-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt Technology
- Precision Internal Oscillator: – Factory calibrated to ±1%, typical – Software selectable frequency range of 8 MHz to 125 kHz – Software tunable – Two-Speed Start-up mode – External Oscillator fail detect for critical applications – Clock mode switching during operation for power savings
- Software selectable 31 kHz internal oscillator
- 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 Low-Power Features:
- Standby Current: – <100 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:
- Liquid Crystal Display module: – Up to 60/96/168 pixel drive capability on 28/40/64-pin devices, respectively – Four commons
- Up to 24/35/53 I/O pins and 1 input-only pin: – High-current source/sink for direct LED drive – Interrupt-on-change pin – Individually programmable weak pull-ups
- In-Circuit Serial Programming™ (ICSP™) via two pins
- Analog comparator module with: – Two analog comparators – Programmable on-chip voltage reference (CVREF) module (% of VDD) – Comparator inputs and outputs externally accessible
- A/D Converter: – 10-bit resolution and up to 8 channels
- Timer0: 8-bit timer/counter with 8-bit programmable prescaler
- Enhanced Timer1: – 16-bit timer/counter with prescaler – External Timer1 Gate (count enable) – Option to use OSC1 and OSC2 as Timer1 oscillator if INTOSCIO or LP mode is selected
- Timer2: 8-bit timer/counter with 8-bit period register, prescaler and postscaler
- Addressable Universal Synchronous Asynchronous Receiver Transmitter (AUSART)
- Up to 2 Capture, Compare, PWM modules: – 16-bit Capture, max. resolution 12.5 ns – 16-bit Compare, max. resolution 200 ns – 10-bit PWM, max. frequency 20 kHz
- Synchronous Serial Port (SSP) with I2C™
