PIC16LC717-E/SS Equivalent & Substitute Parts

Part Overview

The PIC16LC717-E/SS is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, currently in active product status. This device features 4.6KB OTP (One-Time Programmable) memory, operates at 20MHz, and is housed in a 20-SSOP surface mount package. The PIC16LC717-E/SS is suitable for embedded applications requiring low-cost, compact microcontroller solutions with integrated peripherals including PWM, watchdog timer, and analog-to-digital conversion capabilities.

Substitute parts become necessary when OTP memory limitations require reprogrammable alternatives, when higher I/O count is needed, or when design requirements shift toward FLASH-based memory for field updates and development flexibility.

Substiute Parts

PIC16LC717-E/SS

Microchip TechnologyIn Stock: 921PIC16LC717-E/SS Datasheet

Current PartRFQ

PIC16F690-E/SS

Microchip TechnologyIn Stock: 20299PIC16F690-E/SS Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The PIC16F690-E/SS qualifies as a direct substitute based on the following alignment of critical parameters:

Matching Parameters:

• Core processor architecture (PIC)
• Core size (8-Bit)
• Operating speed (20MHz)
• Package type and dimensions (20-SSOP, 0.209", 5.30mm Width)
• Operating temperature range (-40°C ~ 125°C)
• Supply voltage compatibility (2V ~ 5.5V encompasses the original 2.5V ~ 5.5V range)
• Connectivity protocols (I2C, SPI present in both; UART/USART added in substitute)
• Peripheral feature set (Brown-out Detect/Reset, POR, PWM, WDT in both)
• Compliance certifications (ROHS3, REACH Unaffected, EAR99, MSL 1)

Functional Enhancements in Substitute:

• Program memory upgraded from 4.6KB OTP to 7KB FLASH
• I/O count increased from 15 to 18
• EEPROM added (256 x 8)
• A/D converter resolution increased from 6x10b to 12x10b

Parameter Comparison

Engineering Selection Recommendations

The PIC16F690-E/SS is a qualified substitute for the PIC16LC717-E/SS based on electrical and mechanical compatibility. Both devices maintain active product status with identical compliance certifications (ROHS3, REACH Unaffected, EAR99). The substitute provides expanded functionality through FLASH memory reprogrammability, increased program memory capacity, additional I/O pins, and enhanced analog conversion resolution, while maintaining identical package footprint, operating temperature range, and core processing architecture.

Selection between these parts depends on application requirements: retain the PIC16LC717-E/SS for cost-optimized, fixed-code applications; select the PIC16F690-E/SS for designs requiring field reprogrammability, higher I/O density, or enhanced analog measurement capabilities.

Frequently Asked Questions (FAQ)

Q: Can the PIC16F690-E/SS directly replace the PIC16LC717-E/SS in existing PCB layouts?

A: Yes. Both devices use identical 20-SSOP packaging with matching pin pitch and body dimensions (0.209", 5.30mm Width). No PCB redesign is required for physical substitution.

Q: What is the primary functional difference between these microcontrollers?

A: The PIC16LC717-E/SS uses OTP (One-Time Programmable) memory, while the PIC16F690-E/SS uses FLASH memory. FLASH memory allows multiple reprogramming cycles, making the PIC16F690-E/SS suitable for development, field updates, and applications requiring firmware modifications.

Q: Are the supply voltage ranges compatible?

A: Yes. The PIC16F690-E/SS operates at 2V ~ 5.5V, which encompasses the PIC16LC717-E/SS range of 2.5V ~ 5.5V. Existing power supply designs require no modification.

Q: Does the increased I/O count (18 vs. 15) affect pin compatibility?

A: Both devices use the same 20-SSOP package. The additional I/O pins in the PIC16F690-E/SS are available on the same physical package without requiring layout changes.

Q: Are there any compliance or certification differences?

A: No. Both devices carry identical compliance certifications: ROHS3 Compliant, REACH Unaffected, EAR99 classification, and MSL 1 (Unlimited) moisture sensitivity rating.

Q: What applications benefit most from upgrading to the PIC16F690-E/SS?

A: Applications requiring field firmware updates, development prototyping, higher analog measurement precision (12-bit vs. 6-bit A/D), additional I/O connectivity, or UART/USART serial communication benefit from the PIC16F690-E/SS upgrade.