PIC18LC442-I/P

Microcontrollers Overview

The PIC18LC442-I/P is an 8-bit microcontroller from Microchip Technology, utilizing the PIC18 core architecture. It features 16 kB of EPROM program memory and 512 bytes of RAM. The device provides 34 I/O pins and operates with a maximum clock frequency of 40 MHz. It supports a supply voltage range from 4.2 V to 5.5 V and functions within an industrial temperature range of -40°C to +85°C. The component is housed in a PDIP-40 package and includes interfaces such as I2C, MSSP, PSP, SPI, and USART.

Microcontrollers Feature Summary

• Includes Programmable Serial Peripheral (PSP) interface for direct connection to standard CMOS or NMOS optical sensors and parallel displays.

Microcontrollers Applications

• Industrial control systems requiring robust parallel communication capabilities.
• Embedded applications interfacing with parallel optical sensors via PSP.
• General-purpose 8-bit microcontroller designs operating at 5V logic levels.

Microcontrollers Procurement Notes

Verify the specific suffix 'I' confirms the industrial temperature range (-40°C to +85°C) and 'P' indicates the PDIP-40 through-hole package. Confirm that the 'LC' designation corresponds to the low-voltage EPROM variant compatible with the specified 4.2V to 5.5V operating range. Ensure compatibility with existing programming tools for PIC18 EPROM devices.

Microcontrollers Selection Notes

Select this component when EPROM reprogrammability is required for prototyping or low-volume production. The inclusion of the PSP interface distinguishes it from variants lacking parallel port support. Consider the PDIP-40 package for through-hole assembly requirements. Verify that the 40 MHz maximum speed meets the timing constraints of the target application.

Microcontrollers Part Context

This part belongs to the PIC18(L)Cxx2 family of 8-bit microcontrollers. It shares architectural similarities with other members like the PIC18C442 but differs in voltage specifications and memory technology. The family emphasizes parallel peripheral integration alongside standard serial communication modules.

Microcontrollers Replacement Considerations

The PIC18C442-I/P is a comparable alternative within the same series. Note that the PIC18LF4420 offers Flash memory instead of EPROM and different pin counts. Verify electrical compatibility before substituting.