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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