2017-2021 Microchip Technology Inc. DS40001919G-page 1
PIC18(L)F26/27/45/46/47/55/56/57K42
Description
The PIC18(L)F26/27/45/46/47/55/56/57K42 microcontrollers are available in 28/40/44/48-pin devices. These devices
feature a 12-bit ADC with Computation (ADC
2
) automating Capacitive Voltage Divider (CVD) techniques for advanced
touch sensing, averaging, filtering, oversampling and threshold comparison, Temperature Sensor, Vectored Interrupt
Controller with fixed latency for handling interrupts, System Bus Arbiter, Direct Memory Access capabilities, UART with
support for Asynchronous, DMX, DALI and LIN transmissions, SPI, I
2
C, memory features like Memory Access Partition
(MAP) to support customers in data protection and bootloader applications, and Device Information Area (DIA) which
stores factory calibration values to help improve temperature sensor accuracy.
Core Features
• C Compiler Optimized RISC Architecture
• Operating Speed:
- Up to 64 MHz clock input
- 62.5 ns minimum instruction cycle
• Two Direct Memory Access (DMA) Controllers
- Data transfers to SFR/GPR spaces from
either Program Flash Memory, Data
EEPROM or SFR/GPR spaces
- User-programmable source and destination
sizes
- Hardware and software-triggered data
transfers
• System Bus Arbiter with User-Configurable
Priorities for Scanner and DMA1/DMA2 with
respect to the main line and interrupt execution
• Vectored Interrupt Capability
- Selectable high/low priority
- Fixed interrupt latency
- Programmable vector table base address
• 31-Level Deep Hardware Stack
• Low-Current Power-on Reset (POR)
• Configurable Power-up Timer (PWRT)
• Brown-Out Reset (BOR)
• Low-Power BOR (LPBOR) Option
• Windowed Watchdog Timer (WWDT)
- Variable prescaler selection
- Variable window size selection
- Configurable in hardware or software
Memory
• Up to 128 KB Flash Program Memory
• Up to 8 KB Data SRAM Memory
• Up to 1 KB Data EEPROM
• Memory Access Partition (MAP)
- Configurable boot and app region sizes with
individual write protections
• Programmable Code Protection
• Device Information Area (DIA) stores:
- Unique IDs and Device IDs
- Temp Sensor factory-calibrated data
- Fixed Voltage Reference calibrated data
• Device Configuration Information (DCI) stores:
- Erase row size
- Number of write latches per row
- Number of user rows
- Data EEPROM memory size
- Pin count
Operating Characteristics
• Operating Voltage Range:
- 1.8V to 3.6V (PIC18LF26/27/45/46/55/56/
57K42)
- 2.3V to 5.5V (PIC18F26/27/45/46/47/55/56/
57K42)
• Temperature Range:
- Industrial: -40°C to 85°C
- Extended: -40°C to 125°C
Power-Saving Functionality
• Doze mode: Ability to run CPU core slower than
the system clock
• Idle mode: Ability to halt CPU core while internal
peripherals continue operating
• Sleep mode: Lowest power consumption
• Peripheral Module Disable (PMD):
-
Ability to disable unused peripherals
to
minimize power consumption
28/40/44/48-Pin, Low-Power High-Performance
Microcontrollers with XLP Technology