PIC12LC508A-04/SM

Microcontrollers Overview

The PIC12LC508A-04/SM is an 8-bit CMOS microcontroller from the PIC12C5XX family, featuring a RISC architecture with 33 single-cycle instructions. It includes 512 x 12 words of EPROM program memory and 25 bytes of RAM. The device operates at a maximum clock frequency of 4 MHz and supports a wide voltage range of 2.5 V to 5.5 V. It utilizes a PDSO8 surface-mount package and offers selectable oscillator options including internal RC, external RC, crystal, and low-power modes.

Microcontrollers Feature Summary

• High-performance 8-bit RISC CPU with 12-bit instruction width and two-level deep hardware stack
• Integrated Power-On Reset (POR) and Device Reset Timer (DRT) for reliable system startup
• Programmable Watchdog Timer with independent on-chip RC oscillator
• Selectable oscillator configurations including internal 4 MHz RC oscillator

Microcontrollers Applications

• Personal care appliances
• Security systems
• Low-power remote transmitters/receivers
• Timer functions replacing glue logic or PLDs

Microcontrollers Procurement Notes

Verify that the specific ordering suffix corresponds to the required plastic SOIC-8 packaging and industrial temperature rating. Confirm the component type matches the One-Time-Programmable (OTP) specification rather than UV-erasable variants. Ensure compatibility with in-circuit serial programming requirements using GP0 and GP1 pins.

Microcontrollers Selection Notes

Select this variant for applications requiring a 2.5 V to 5.5 V operating voltage range compared to the standard 3.0 V minimum of non-L versions. Choose the SM suffix for surface-mount assembly needs. Consider the OTP nature of the device for production volumes where frequent code updates are not required after initial programming.

Microcontrollers Part Context

This component belongs to the PIC12C5XX family of 8-pin, 8-bit CMOS microcontrollers manufactured by Microchip Technology. The family encompasses various memory configurations including EPROM, OTP, and EEPROM data storage options. The PIC12LC508A specifically denotes the low-voltage OTP variant within this series.

Microcontrollers Replacement Considerations

PIC12C508A-04/SM

Microcontrollers FAQ

What is the difference between the PIC12C508A and PIC12LC508A regarding voltage?

The PIC12LC508A supports a wider operating voltage range starting from 2.5 V, whereas the PIC12C508A typically requires a minimum of 3.0 V.

How is the internal oscillator calibrated in this device?

The device features an internal 4 MHz RC oscillator with programmable calibration stored in the OSCCAL register, which can be adjusted via software.