Product Overview
Industrial 40 MHz Embedded Control MCU with 32KB Flash and 10-Bit ADC
Condition
New old stock (NOS) in unused condition. Package leads are straight, clean, and uninserted. Markings legible: PIC18F452-I/P with Microchip logo. Sold each.
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Product Overview
Microchip Technology's PIC18F452-I/P provides 8-bit computing power with up to 10 MIPS throughput at 40 MHz. Built around an enhanced PIC core, this 40-pin PDIP device integrates 32KB of flash program memory, 1536 bytes of internal SRAM, and 256 bytes of high-endurance EEPROM. It delivers comprehensive connectivity and mixed-signal capabilities for industrial automation, motor control, instrumentation, and custom embedded electronics.
Key Features
- 40 MHz maximum operating clock frequency delivering up to 10 MIPS execution speed
- 32 KB flash program memory with 1536 bytes SRAM and 256 bytes data EEPROM
- 40-pin Plastic Dual In-Line Package (PDIP) with 0.600-inch row spacing
- 34 general-purpose input/output (I/O) pins
- Integrated 8-channel, 10-bit analog-to-digital converter (ADC)
- Master Synchronous Serial Port (MSSP) supporting SPI and I2C communication modes
- Addressable USART supporting RS-485 and RS-232 serial interfaces
- Industrial operating temperature range of -40°C to +85°C
- Operating supply voltage range from 4.2V to 5.5V
Applications
- Upgrading or repairing legacy industrial motor controllers and factory automation PLC boards that utilize 40-pin PIC18 architectures.
- Bench-testing custom firmware on breadboards or standard 40-pin sockets without designing dedicated surface-mount test adapters.
- Building DIY digital synthesizers, MIDI controllers, and sensor data loggers requiring multiple hardware timers and multichannel analog conversion.
- Replacing failed microcontrollers on legacy laboratory instrumentation and test equipment during system refurbishment.
Frequently Asked Questions
What supply voltage does this microcontroller require?
The PIC18F452-I/P operates on a standard 5V DC supply, with an operational voltage range specified from 4.2V to 5.5V.
Can this chip be programmed in-circuit?
Yes. It supports In-Circuit Serial Programming (ICSP) through standard clock, data, and programming voltage pins, as well as In-Circuit Debugging (ICD).
What physical socket and row spacing does the PIC18F452-I/P fit?
It fits standard 40-pin DIP sockets and prototyping breadboards with 0.600-inch row-to-row spacing and 0.100-inch pin-to-pin pitch.
A classic 40-pin DIP from the golden era of through-hole microcontrollers, when dropping a full 10-MIPS machine into a breadboard took nothing more than steady hands and a standard socket. Drop it into your circuit and get your hardware talking.
