Microchip Technology PIC18F4423-E/P

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Product attributes Property Value
Manufacturer Microchip Technology
Product Series PIC® 18F
Packaging | Tube
Core Processor PIC
Core Size 8-Bit
Speed 40MHz
Connectivity I2C, SPI, UART/USART
Peripherals Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number of I/O 36
Program Memory Size 16KB (8K x 16)
Program Memory Type FLASH
EEPROM Size 256 x 8
RAM Size 768 x 8
Voltage - Supply (Vcc/Vdd) 4.2V ~ 5.5V
Data Converters A/D 13x12b
Oscillator Type Internal
Operating Temperature -40°C ~ 125°C (TA)
Grade -
Qualification -
Mounting Type Through Hole
Supplier Device Package 40-PDIP
Package / Case 40-DIP (0.600", 15.24mm)
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Microchip PIC18F4423-E/P is a robust 8-bit microcontroller designed for 5V applications. Operating at 40MHz with a supply range of 4.2V to 5.5V, it offers 16KB of flash and 768 x 8 RAM. Its 40-pin DIP package and extended temperature range make it a dependable choice for industrial and automotive control systems.

  • True 5V Operation: Simplifies interfacing with legacy 5V peripherals and sensors.
  • Extended Temperature: -40°C to 125°C for harsh environments.
  • Through-Hole Package: 40-DIP is easy to prototype and repair.
  • Integrated PWM: Directly drives power stages without external logic.

Legacy Industrial Systems

5V operation and DIP package allow direct replacement in existing 5V control boards for PLCs and relays.

Automotive Aftermarket

Wide temperature range and 5V logic interface with sensors make it suitable for retrofit engine management.

HVAC Controllers

PWM outputs drive triacs and relays for heating/cooling systems with robust noise immunity.

Power Supply Monitoring

5V operation simplifies interfacing with analog power rails for voltage/current monitoring.

Educational Kits

DIP package and simple programming interface make it ideal for teaching embedded systems.

Test Equipment

Reliable 5V logic and multiple timers support benchtop frequency counters and signal generators.

Q: What is the supply voltage range?
A: The supply voltage range is 4.2V to 5.5V, making it 5V tolerant.
Q: What is the program memory size?
A: It has 16KB (8K x 16) of flash memory.
Q: What is the maximum speed?
A: The device operates at up to 40MHz.
Q: What package is available?
A: It is available in a 40-pin DIP package (0.600" width).
Q: Does it support PWM?
A: Yes, it includes PWM modules for motor and power control.
Base Product Number : PIC18F4423
16KB Flash 40-DIP 40MHz 5V 8-bit MCU Automotive HVAC Industrial PIC18 PWM
Q: What is the supply voltage range?
A: The supply voltage range is 4.2V to 5.5V, making it 5V tolerant.
Q: What is the program memory size?
A: It has 16KB (8K x 16) of flash memory.
Q: What is the maximum speed?
A: The device operates at up to 40MHz.
Q: What package is available?
A: It is available in a 40-pin DIP package (0.600" width).
Q: Does it support PWM?
A: Yes, it includes PWM modules for motor and power control.