PIC12F1822T-E/MF

8位微控制器 -MCU 3.5 KB Flash 128 b RAM 32 MHz

DEVICE OVERVIEW

The PIC12F/LF1822/16F/LF1823 are described within this data sheet. They are available in 8/14 pin packages.

Figure 1-1 shows a block diagram of the PIC12F/LF1822/16F/LF1823 devices. Tables 1-2 and 1-3 show the pinout descriptions.

High-Performance RISC CPU:

• Only 49 Instructions to Learn:

\- All single-cycle instructions except branches

• Operating Speed:

\- DC – 32 MHz oscillator/clock input

\- DC – 125 ns instruction cycle

• Interrupt Capability with Automatic Context Saving

• 16-Level Deep Hardware Stack with Optional Overflow/Underflow Reset

• Direct, Indirect and Relative Addressing modes:

\- Two full 16-bit File Select Registers FSRs

\- FSRs can read program and data memory

Flexible Oscillator Structure:

• Precision 32 MHz internal Oscillator Block:

\- Factory calibrated to ± 1%, typical

\- Software selectable frequencies range of 31 kHz to 32 MHz

• 31 kHz Low-Power Internal Oscillator

• Four crystal modes up to 32 MHz

• Three external clock modes up to 32 MHz

• 4X Phase Lock Loop PLL

• Fail-Safe Clock Monitor:

\- Allows for safe shutdown if peripheral clock stops

• Two-Speed Oscillator Start-up

• Reference Clock Module:

\- Programmable clock output frequency and duty-cycle

Special Microcontroller Features:

• Full 5.5V operation – PIC12F1822/16F1823

• 1.8V-3.6V operation – PIC12LF1822/16LF1823

• Self-reprogrammable under software control

• Power-on Reset POR, Power-up Timer PWRT and Oscillator Start-up Timer OST

• Programmable Brown-out Reset BOR

• Extended Watchdog Timer WDT

• In-Circuit Serial Programming™ ICSP™ via two pins

• In-Circuit Debug ICD via two pins

• Enhanced Low-Voltage Programming LVP

• Operating Voltage Range:

\- 1.8V-5.5V PIC12F1822/16F1823

\- 1.8V-3.6V PIC12LF1822/16LF1823

• Programmable Code Protection

• Self-Programmable under Software Control

Low-Power Features:

• Standby Current PIC12LF1822/16LF1823:

\- 30 nA @ 1.8V, typical

• Operating Current PIC12LF1822/16LF1823:

-75A @ 1 MHz, 1.8V, typical

• Low-Power Watchdog Timer Current PIC12LF1822/16LF1823:

\- 500 nA @ 1.8V, typical

Analog Features:

• Analog-to-Digital Converter ADC module:

\- 10-bit resolution, up to 8 channels

\- Conversion available during Sleep

• Analog Comparator module:

\- Up to two rail-to-rail analog comparators

\- Power mode control

\- Software controllable hysteresis

• Voltage Reference module:

\- Fixed Voltage Reference FVR with 1.024V, 2.048V and 4.096V output levels

\- 5-bit rail-to-rail resistive DAC with positive and negative reference selection

Peripheral Highlights:

• Up to 11 I/O pins and 1 input only pin:

\- High current sink/source 25 mA/25 mA

\- Programmable weak pull-ups

\- Programmable interrupt-on-change pins

• Timer0: 8-Bit Timer/Counter with 8-Bit Prescaler

• Enhanced Timer1:

\- 16-bit timer/counter with prescaler

\- External Gate Input mode

\- Dedicated, low-power 32 kHz oscillator driver

• Timer2: 8-Bit Timer/Counter with 8-Bit Period Register, Prescaler and Postscaler

• Enhanced CCP ECCP modules:

\- Software selectable time bases

\- Auto-shutdown and auto-restart

\- PWM steering

• Master Synchronous Serial Port MSSP with SPI and I2C with:

\- 7-bit address masking

\- SMBus/PMBus compatibility

• Enhanced Universal Synchronous Asynchronous Receiver Transmitter EUSART module:

\- RS-232, RS-485 and LIN compatible

\- Auto-Baud Detect

• mTouch™ Sensing oscillator module:

\- Up to 8 input channels

Peripheral Features Continued:

• Data Signal Modulator module

\- Selectable modulator and carrier sources

• SR Latch:

\- Multiple Set/Reset input options

\- Emulates 555 Timer applications