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:
-75A @ 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
