PIC16LC773T/SS Equivalent & Substitute Parts

Part Overview

The PIC16LC773T/SS 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-SSOP surface mount package.

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

Substiute Parts

PIC16LC773T/SS
Microchip TechnologyIn Stock: 805PIC16LC773T/SS Datasheet
PIC16LC773T/SS
Current Part
PIC16LC773/SS
Microchip TechnologyIn Stock: 803PIC16LC773/SS Datasheet
PIC16LC773/SS
Direct

Key Parameters

Parameter Value
Core Processor PIC
Core Size 8-Bit
Speed 20MHz
Program Memory Size 7KB (4K x 14)
Program Memory Type OTP
RAM Size 256 x 8
Voltage - Supply (Vcc/Vdd) 2.5V ~ 5.5V
Data Converters A/D 6x12b
Number of I/O 22
Connectivity I2C, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Mounting Type Surface Mount
Package / Case 28-SSOP (0.209", 5.30mm Width)
Operating Temperature 0°C ~ 70°C (TA)

Substitute Part Grouping Explanation

Substitution for the PIC16LC773T/SS is determined by strict equivalence across the following critical parameters:

  • Core Architecture: PIC 8-bit processor
  • Program Memory: 7KB OTP (4K x 14)
  • RAM: 256 x 8 bytes
  • Clock Speed: 20MHz
  • Supply Voltage Range: 2.5V ~ 5.5V
  • Package: 28-SSOP surface mount
  • Peripheral Set: I2C, SPI, UART/USART, PWM, WDT, brown-out detection
  • I/O Count: 22 pins
  • Data Converter: A/D 6x12-bit

The PIC16LC773/SS meets all substitution criteria as a direct equivalent. The primary distinction is product status and packaging format.

Parameter Comparison

Parameter PIC16LC773T/SS (Main) PIC16LC773/SS (Substitute)
Manufacturer Microchip Technology Microchip Technology
Series PIC® 16C PIC® 16C
Core Processor PIC PIC
Core Size 8-Bit 8-Bit
Speed 20MHz 20MHz
Program Memory Size 7KB (4K x 14) 7KB (4K x 14)
Program Memory Type OTP OTP
RAM Size 256 x 8 256 x 8
Voltage - Supply (Vcc/Vdd) 2.5V ~ 5.5V 2.5V ~ 5.5V
Data Converters A/D 6x12b A/D 6x12b
Number of I/O 22 22
Connectivity I2C, SPI, UART/USART I2C, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, PWM, WDT Brown-out Detect/Reset, POR, PWM, WDT
Mounting Type Surface Mount Surface Mount
Package / Case 28-SSOP (0.209", 5.30mm Width) 28-SSOP (0.209", 5.30mm Width)
Operating Temperature 0°C ~ 70°C (TA) 0°C ~ 70°C (TA)
Product Status Obsolete Active
Packaging Format Not specified Tube
RoHS Status ROHS3 Compliant ROHS3 Compliant
REACH Status REACH Unaffected REACH Unaffected

Engineering Selection Recommendations

The PIC16LC773/SS is a direct functional equivalent to the PIC16LC773T/SS. Both devices are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

The primary advantage of selecting PIC16LC773/SS is its active product status. This ensures ongoing availability, manufacturer support, and compliance with current supply chain standards. The substitute part is supplied in tube packaging, which is standard for active production components.

For legacy system maintenance where the exact PIC16LC773T/SS variant is required, the PIC16LC773/SS provides identical electrical and functional performance with improved procurement reliability.

Frequently Asked Questions (FAQ)

Q: Are PIC16LC773T/SS and PIC16LC773/SS pin-compatible?

A: Yes. Both devices use the 28-SSOP package with identical pinout, electrical characteristics, and peripheral functionality. Direct board-level substitution is supported.

Q: What is the difference between these two part numbers?

A: The primary difference is product status and packaging. PIC16LC773T/SS is obsolete, while PIC16LC773/SS is active production. Both share identical core specifications: 8-bit PIC processor, 7KB OTP memory, 20MHz operation, and 28-SSOP surface mount package.

Q: Can I use PIC16LC773/SS in a design originally specified for PIC16LC773T/SS?

A: Yes. The electrical and functional parameters are identical. No design changes are required. The substitute part maintains full compatibility with existing firmware and PCB layouts.

Q: Are there compliance differences between these parts?

A: No. Both parts are ROHS3 compliant and REACH unaffected. Regulatory and environmental compliance is equivalent.

Q: What packaging formats are available?

A: PIC16LC773/SS is supplied in tube packaging, which is standard for active production microcontrollers. The original PIC16LC773T/SS packaging format is not specified in available documentation.

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