PIC18(L)F26/45/46K40
28/40/44-Pin, Low-Power, High-Performance
Microcontrollers with XLP Technology
Description
These PIC18(L)F26/45/46K40 microcontrollers feature Analog, Core Independent Peripherals and
Communication Peripherals, combined with eXtreme Low-Power (XLP) technology for a wide range of
general purpose and low-power applications. These 28/40/44 -pin devices are equipped with a 10-bit
ADC with Computation (ADCC) automating Capacitive Voltage Divider (CVD) techniques for advanced
touch sensing, averaging, filtering, oversampling and performing automatic threshold comparisons. They
also offer a set of Core Independent Peripherals such as Complementary Waveform Generator (CWG),
Windowed Watchdog Timer (WWDT), Cyclic Redundancy Check (CRC)/Memory Scan, Zero-Cross
Detect (ZCD) and Peripheral Pin Select (PPS), providing for increased design flexibility and lower system
cost.
Core Features
•
•
C Compiler Optimized RISC Architecture
Operating Speed:
– DC – 64 MHz clock input over the full V
DD
range
– 62.5 ns minimum instruction cycle
Programmable 2-Level Interrupt Priority
31-Level Deep Hardware Stack
Three 8-Bit Timers (TMR2/4/6) with Hardware Limit Timer (HLT)
Four 16-Bit Timers (TMR0/1/3/5)
Low-Current Power-on Reset (POR)
Power-up Timer (PWRT)
Brown-out Reset (BOR)
Low-Power BOR (LPBOR) Option
Windowed Watchdog Timer (WWDT):
– Watchdog Reset on too long or too short interval between watchdog clear events
– Variable prescaler selection
– Variable window size selection
– All sources configurable in hardware or software
•
•
•
•
•
•
•
•
•
Memory
•
•
Up to 64K Bytes Program Flash Memory
Up to 3728 Bytes Data SRAM Memory
©
2018 Microchip Technology Inc.
Datasheet
DS40001816F-page 1
PIC18(L)F26/45/46K40
•
•
•
1024 Bytes Data EEPROM
Programmable Code Protection
Direct, Indirect and Relative Addressing modes
Operating Characteristics
•
Operating Voltage Ranges:
– 1.8V to 3.6V (PIC18LF26/45/46K40 )
– 2.3V to 5.5V ( PIC18F26/45/46K40)
Temperature Range:
– Industrial: -40°C to 85°C
–
Extended: -40°C to 125°C
•
Power-Saving Operation Modes
•
•
•
•
Doze: CPU and Peripherals Running at Different Cycle Rates (typically CPU is lower)
Idle: CPU Halted While Peripherals Operate
Sleep: Lowest Power Consumption
Peripheral Module Disable (PMD):
– Ability to selectively disable hardware module to minimize active power consumption of unused
peripherals
Extreme Low-Power mode (XLP)
– Sleep: 500 nA typical @ 1.8V
– Sleep and Watchdog Timer: 900 nA typical @ 1.8V
•
eXtreme Low-Power (XLP) Features
•
•
•
•
Sleep mode: 50 nA @ 1.8V, typical
Windowed Watchdog Timer: 500 nA @ 1.8V, typical
Secondary Oscillator: 500 nA @ 32 kHz
Operating Current:
– 8 uA @ 32 kHz, 1.8V, typical
– 32 uA/MHz @ 1.8V, typical
Digital Peripherals
•
Complementary Waveform Generator (CWG):
– Rising and falling edge dead-band control
– Full-bridge, half-bridge, 1-channel drive
– Multiple signal sources
Capture/Compare/PWM (CCP) modules:
– Two CCPs
– 16-bit resolution for Capture/Compare modes
– 10-bit resolution for PWM mode
10-Bit Pulse-Width Modulators (PWM):
•
•
©
2018 Microchip Technology Inc.
Datasheet
DS40001816F-page 2
PIC18(L)F26/45/46K40
•
– Two 10-bit PWMs
Serial Communications:
– Two Enhanced USART (EUSART) with Auto-Baud Detect, Auto-wake-up on Start.
RS-232, RS-485, LIN compatible
– SPI
– I
2
C, SMBus and PMBus
™
compatible
Up to 35 I/O Pins and One Input Pin:
– Individually programmable pull-ups
– Slew rate control
– Interrupt-on-change on all pins
– Input level selection control
Programmable CRC with Memory Scan:
– Reliable data/program memory monitoring for Fail-Safe operation (e.g., Class B)
– Calculate CRC over any portion of Flash or EEPROM
– High-speed or background operation
Hardware Limit Timer (TMR2/4/6+HLT):
– Hardware monitoring and Fault detection
Peripheral Pin Select (PPS):
– Enables pin mapping of digital I/O
Data Signal Modulator (DSM)
•
•
•
•
•
Analog Peripherals
•
10-Bit Analog-to-Digital Converter with Computation (ADC
2
):
– 35 external channels
– Conversion available during sleep
– Four internal analog channels
– Internal and external trigger options
– Automated math functions on input signals:
• Averaging, filter calculations, oversampling and threshold comparison
– 8-bit hardware acquisition timer
Hardware Capacitive Voltage Divider (CVD) Support:
– 8-bit precharge timer
– Adjustable sample and hold capacitor array
– Guard ring digital output drive
Zero-Cross Detect (ZCD):
– Detect when AC signal on pin crosses ground
5-Bit Digital-to-Analog Converter (DAC):
– Output available externally
– Programmable 5-bit voltage (% of V
DD
,[V
Ref+
- V
Ref-
], FVR)
– Internal connections to comparators and ADC
Two Comparators (CMP):
– Four external inputs
– External output via PPS
•
•
•
•
©
2018 Microchip Technology Inc.
Datasheet
DS40001816F-page 3
PIC18(L)F26/45/46K40
•
Fixed Voltage Reference (FVR) Module:
– 1.024V, 2.048V and 4.096V output levels
– Two buffered outputs: One for DAC/CMP and one for ADC
Clocking Structure
•
High-Precision Internal Oscillator Block (HFINTOSC):
– Selectable frequencies up to 64 MHz
– ±1% at calibration
32 kHz Low-Power Internal Oscillator (LFINTOSC)
External 32 kHz Crystal Oscillator (SOSC)
External High-frequency Oscillator Block:
– Three crystal/resonator modes
– Digital Clock Input mode
– 4x PLL with external sources
Fail-Safe Clock Monitor:
– Allows for safe shutdown if external clock stops
Oscillator Start-up Timer (OST)
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•
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•
Programming/Debug Features
•
•
•
In-Circuit Serial Programming
™
(ICSP
™
) via Two Pins
In-Circuit Debug (ICD) with Three Breakpoints via Two Pins
Debug Integrated On-Chip
PIC18(L)F26/45/46K40 Family Types
Table 1. Devices included in this data sheet
Peripheral Module Disable
Low Voltage Detect (LVD)
CRC with Memory Scan
Program Memory Flash
(bytes)
Temperature Indicator
Y
Y
Y
Windowed Watchdog
8-bit TMR with HLT
Zero-Cross Detect
Computation (ch)
10-bit ADC2 with
CCP/10-bit PWM
Data EEPROM
(bytes)
Comparators
16-bit Timers
Data SRAM
(bytes)
5-bit DAC
Device
PIC18(L)F26K40
PIC18(L)F45K40
PIC18(L)F46K40
64k
32k
64k
3615
2048
3615
1024
256
1024
25
36
36
4
4
4
2
2
2
24
35
35
1
1
1
1
1
1
2/2
2/2
2/2
1
1
1
0
0
0
1
1
1
3
3
3
Y
Y
Y
Y
Y
Y
2
2
2
2
2
2
Y
Y
Y
Y
Y
Y
©
2018 Microchip Technology Inc.
Datasheet
DS40001816F-page 4
Debug(1)
I
I
I
EUSART
I/O Pins
I2C/SPI
Timer
CWG
SMT
PPS
PIC18(L)F26/45/46K40
Table 2. Devices not included in this data sheet
Peripheral Module Disable
Low Voltage Detect (LVD)
CRC with Memory Scan
Program Memory Flash
(bytes)
Temperature Indicator
Y
Y
Y
Y
Y
Y
Y
Windowed Watchdog
8-bit TMR with HLT
Zero-Cross Detect
Computation (ch)
10-bit ADC2 with
CCP/10-bit PWM
Data EEPROM
(bytes)
Comparators
16-bit Timers
Data SRAM
(bytes)
5-bit DAC
Device
PIC18(L)F24K40
PIC18(L)F25K40
PIC18(L)F27K40
PIC18(L)F47K40
PIC18(L)F65K40
PIC18(L)F66K40
PIC18(L)F67K40
16k
32k
128k
128k
32k
64k
128k
1024
2048
3615
3615
2048
3562
3562
256
256
1024
1024
1024
1024
1024
25
25
25
36
60
60
60
4
4
4
4
5
5
5
2
2
2
2
3
3
3
24
24
24
35
45
45
47
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2/2
2/2
2/2
2/2
5/2
5/2
5/2
1
1
1
1
1
1
1
0
0
0
0
2
2
2
1
1
1
1
1
1
1
3
3
3
3
4
4
4
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
1
1
2
2
5
5
5
1
1
2
2
2
2
2
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Note:
Debugging Methods: (I) – Integrated on Chip.
Data Sheet Index:
1.
DS40001843 PIC18(L)F24/25K40 Data Sheet, 28-Pin, 8-bit Flash Microcontrollers
2.
DS40001816 PIC18(L)F26/45/46K40 Data Sheet, 28/40/44-Pin, 8-bit Flash Microcontrollers
3.
DS40001844 PIC18(L)F27/47K40 Data Sheet, 28/40/44-Pin, 8-bit Flash Microcontrollers
4.
DS40001842 PIC18(L)F65/66K40 Data Sheet, 64-Pin, 8-bit Flash Microcontrollers
Filename:
00-000028A.vsd
5.
Title:
DS40001841 PIC18(L)F67K40 Data Sheet, 64-Pin, 8-bit Flash Microcontrollers
28-pin DIP
Pin Diagrams
Last Edit:
First Used:
Notes:
3/6/2017
N/A
Generic 28-pin dual in-line diagram
Figure 1. 28-pin SPDIP, SSOP, SOIC
Rev. 00-000 028A
3/6/201 7
MCLR/V
PP
/RE3
RA0
RA1
RA2
RA3
RA4
RA5
V
SS
RA7
RA6
RC0
RC1
RC2
RC3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
RB7/ICSPDAT
RB6/ICSPCLK
RB6
RB4
RB3
RB2
RB1
RB0
V
DD
V
SS
RC7
RC6
RC5
RC4
©
2018 Microchip Technology Inc.
Datasheet
DS40001816F-page 5
Debug(1)
I
I
I
I
I
I
I
EUSART
I/O Pins
I2C/SPI
Timer
CWG
SMT
PPS
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