PIC16F687-E/SS

Microcontrollers Overview

The PIC16F687-E/SS is a 20-pin 8-bit CMOS microcontroller from the PIC16(L)F6xx family, housed in an SSOP package. It features 2K x 14 words of Flash program memory, 128 bytes of SRAM, and 256 bytes of Data EEPROM. The device operates at clock frequencies up to 20 MHz with a supply voltage range of 2.0V to 5.5V. Key peripherals include a 10-bit ADC with 12 channels, two analog comparators, an Enhanced USART supporting RS-485/RS-232/LIN 2.0, and a Synchronous Serial Port (SSP).

Microcontrollers Feature Summary

• Features a precision internal oscillator factory calibrated to ±1% with software-selectable frequency ranging from 8 MHz to 32 kHz.
• Includes an Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART) module capable of Auto-Baud Detect and Auto-wake-up on Start bit.
• Provides high endurance for non-volatile memory with 100,000 write cycles for Flash and 1,000,000 write cycles for Data EEPROM.
• Supports In-Circuit Serial Programming (ICSP) via two pins for efficient development and manufacturing.

Microcontrollers Applications

• Industrial control systems requiring robust communication protocols like LIN 2.0.
• Battery-powered consumer electronics utilizing low-power sleep modes.
• Sensor interfaces leveraging the 12-channel 10-bit Analog-to-Digital Converter.
• Motor control applications using the Enhanced Capture, Compare, and PWM modules.

Microcontrollers Procurement Notes

Verify the specific suffix 'E' indicates the Extended temperature range (-40°C to +125°C) and 'SS' denotes the SSOP-20 package. Confirm that the ordering part number matches the exact pinout and peripheral configuration required for your design, as this device shares the datasheet with multiple variants in the PIC16F6xx series.

Microcontrollers Selection Notes

Select this component when a balance of moderate code space and rich peripheral integration is needed within a compact 20-pin footprint. It is suitable for designs requiring precise timing without external crystals due to the calibrated internal oscillator. Consider the extended temperature rating if the application environment exceeds standard industrial limits.

Microcontrollers Part Context

This microcontroller belongs to Microchip's PIC16(L)F6xx family, which utilizes the High-Performance RISC CPU architecture. The family emphasizes low power consumption through nanoWatt technology and offers flexibility through multiplexed pins. The PIC16F687 specifically bridges the gap between basic controllers and more complex devices by integrating both serial communication ports and analog capabilities.

Microcontrollers Replacement Considerations

Direct pin-compatible replacements within the same datasheet include the PIC16F689, which offers increased memory capacity. For upgrades requiring additional timers or ECCP+ modules, consider the PIC16F685 or PIC16F690. Ensure any substitute maintains the SSOP-20 package and Extended temperature grade if environmental constraints apply.