PIC16LC773/SP Equivalent & Substitute Parts

Part Overview

The PIC16LC773/SP is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, featuring 7KB OTP program memory, 256 bytes of RAM, and integrated peripherals including PWM, watchdog timer, and brown-out detection. The device operates at 20MHz with a supply voltage range of 2.5V to 5.5V and is housed in a 28-pin SPDIP package.

This part is classified as obsolete. Identifying equivalent and substitute components is necessary to support legacy system maintenance, design updates, and procurement continuity when original inventory becomes unavailable.

Substiute Parts

PIC16LC773/SP

Microchip TechnologyIn Stock: 1162PIC16LC773/SP Datasheet

Current PartRFQ

PIC16C773/SP

Microchip TechnologyIn Stock: 1000481PIC16C773/SP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PIC16LC773/SP is determined by strict alignment across the following critical parameters:

• Core Architecture: PIC 8-bit processor
• Memory Configuration: 7KB OTP program memory (4K x 14), 256 x 8 RAM
• Clock Speed: 20MHz operation
• I/O Count: 22 I/O pins
• Peripheral Set: I2C, SPI, UART/USART connectivity; Brown-out Detect/Reset, POR, PWM, WDT
• Data Conversion: A/D 6x12b
• Package: 28-DIP through-hole form factor
• Supply Voltage Range: Must support the operating range specified

The PIC16C773/SP qualifies as a direct substitute based on identical core specifications, memory configuration, peripheral set, and package format. The primary distinction is the supply voltage range: PIC16C773/SP operates at 4V ~ 5.5V, which is a subset of the PIC16LC773/SP range (2.5V ~ 5.5V). This substitution is valid only in applications where the minimum supply voltage requirement is 4V or higher.

Parameter Comparison

Engineering Selection Recommendations

The PIC16C773/SP is the manufacturer-recommended substitute for the obsolete PIC16LC773/SP. Both devices maintain identical core architecture, memory configuration, peripheral functionality, and package specifications. Both are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

The critical selection criterion is supply voltage compatibility. The PIC16C773/SP operates within 4V ~ 5.5V, whereas the PIC16LC773/SP supports 2.5V ~ 5.5V. Applications requiring operation below 4V supply voltage cannot use the PIC16C773/SP as a direct substitute without circuit redesign.

For systems operating at 4V or higher, the PIC16C773/SP provides functional equivalence with the added benefit of active product status, ensuring continued availability and support from Microchip Technology.

Frequently Asked Questions (FAQ)

Q: Can PIC16C773/SP replace PIC16LC773/SP in all applications?

A: The PIC16C773/SP is functionally equivalent only in applications where the minimum supply voltage is 4V or higher. Systems designed for 2.5V ~ 3.9V operation require the original PIC16LC773/SP or alternative components supporting the lower voltage range.

Q: What is the difference between the "LC" and "C" designations?

A: The "LC" suffix indicates low-voltage operation capability (2.5V minimum), while the "C" suffix indicates standard voltage operation (4V minimum). Both devices are otherwise identical in architecture and functionality.

Q: Are the packaging and pinout identical?

A: Yes. Both devices use the 28-DIP (0.300", 7.62mm) through-hole package with identical pinout and I/O configuration. No PCB layout modifications are required for substitution.

Q: What compliance certifications apply to both parts?

A: Both the PIC16LC773/SP and PIC16C773/SP are ROHS3 compliant and REACH unaffected. Both carry MSL rating 1 (unlimited moisture sensitivity level).

Q: Why is PIC16LC773/SP classified as obsolete?

A: Microchip Technology has discontinued the PIC16LC773/SP in favor of the PIC16C773/SP and newer microcontroller families. The PIC16C773/SP remains in active production and is the recommended path for new designs and legacy system support.