Details on Individual Family Members

Devices in the PIC18(L)F27/47K40 family are available in 28/40/44-pin packages. The block diagram for this device is shown in Figure 1.

The devices have the following differences:

  1. 1.Program Flash Memory
  2. 2.Data Memory SRAM
  3. 3.Data Memory EEPROM
  4. 4.A/D channels
  5. 5.I/O ports
  6. 6.Enhanced USART
  7. 7.Input Voltage Range/Power Consumption

All other features for devices in this family are identical. These are summarized in the following Device Features table.

The pinouts for all devices are listed in the pin summary tables.

Table 1. Device Features
Features PIC18(L)F27K40 PIC18(L)F47K40
Program Memory (Bytes)

131072

131072

Program Memory (Instructions)

65536

65536

Data Memory (Bytes)

3720

3720

Data EEPROM Memory (Bytes)

1024

1024

I/O Ports A,B,C,E(1)

A,B,C,D,E(1)

Capture/Compare/PWM Modules (CCP) 2 2
10-Bit Pulse-Width Modulator (PWM) 2 2
10-Bit Analog-to-Digital Module (ADC2) with Computation Accelerator 4 internal

24 external

4 internal

35 external

Packages 28-pin SPDIP

28-pin SOIC

28-pin SSOP

28-pin QFN

40-pin PDIP

40-pin UQFN

44-pin QFN

44-pin TQFP

Interrupt Sources 36
Timers (16-/8-bit) 4/3
Serial Communications 2 MSSP,

2 EUSART

Enhanced Complementary Waveform Generator (ECWG) 1
Zero-Cross Detect (ZCD) 1
Data Signal Modulator (DSM) 1
Peripheral Pin Select (PPS) Yes
Peripheral Module Disable (PMD) Yes
16-bit CRC with NVMSCAN Yes
Programmable High/Low-Voltage Detect (HLVD) Yes
Programmable Brown-out Reset (BOR) Yes
Resets (and Delays) POR, BOR,

RESET Instruction,

Stack Overflow,

Stack Underflow,

MCLR, WWDT,

(PWRT, OST)

Instruction Set 75 Instructions;

83 with Extended Instruction Set enabled

Operating Frequency DC – 64 MHz
Note 1: RE3 is an input only pin.
Figure 1. PIC18(L)F27/47K40 Family Block Diagram