●DEVICE OVERVIEW
●The PIC16(L)F720/721 devices are covered by this data sheet. They are available in 20-pin packages.
●Figure 1-1 shows a block diagram of the PIC16(L)F720/721 devices. Table 1-1 shows the pinout descriptions.
●High-Performance RISC CPU:
●• Only 35 Instructions to Learn:
● - All single-cycle instructions except branches
●• Operating Speed:
● - DC – 16 MHz oscillator/clock input
● - DC – 250 ns instruction cycle
●• Up to 4K x 14 Words of Flash Program Memory
●• Up to 256 bytes of Data Memory (RAM)
●• Interrupt Capability
●• 8-Level Deep Hardware Stack
●• Direct, Indirect and Relative Addressing modes
●• Processor Self-Write/Read access to Program Memory
●Special Microcontroller Features:
●• Precision Internal Oscillator:
● - 16 MHz or 500 kHz operation
● - Factory calibrated to ±1%, typical
● - Software tunable
● - Software selectable ÷1, ÷2, ÷4 or ÷8 divider
●• Power-Saving Sleep mode
●• Industrial and Extended Temperature Range
●• Power-on Reset (POR)
●• Power-up Timer (PWRT)
●• Brown-out Reset (BOR)
●• Multiplexed Master Clear with Pull-up/Input Pin
●• Programmable Code Protection
●• In-Circuit Serial ProgrammingTM (ICSPTM) via Two Pins
●• 128 Bytes High-Endurance Flash:
● - 100,000 write Flash endurance (minimum)
●• Wide Operating Voltage Range:
● - 1.8V to 5.5V (PIC16F720/721)
● - 1.8V to 3.6V (PIC16LF720/721)
●Low-Power Features:
●• Standby Current:
● - 40 nA @ 1.8V, typical
●• Low-Power Watchdog Timer Current:
● - 500 nA @ 1.8V, typical
●Peripheral Features:
●• Up to 17 I/O Pins and 1 Input-only Pin:
● - High-current source/sink for direct LED drive
● - Interrupt-on-change pins
● - Individually programmable weak pull-ups
●• A/D Converter:
● - 8-bit resolution
● - 12 channels
● - Selectable Voltage reference
●• Timer0: 8-Bit Timer/Counter with 8-Bit Programmable Prescaler
●• Enhanced Timer1
● - 16-bit timer/counter with prescaler
● - External Gate Input mode with toggle and single shot modes
● - Interrupt-on-gate completion
●• Timer2: 8-Bit Timer/Counter with 8-Bit Period Register, Prescaler and Postscaler
●• Capture, Compare, PWM module (CCP)
● - 16-bit Capture, max resolution 12.5 ns
● - 16-bit Compare, max resolution 250 ns
● - 10-bit PWM, max frequency 15 kHz
●• Addressable Universal Synchronous
● Asynchronous Receiver Transmitter (AUSART)
●• Synchronous Serial Port (SSP)
● - SPI (Master/Slave)
● - I2CTM (Slave) with Address Mask
