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PIC16C56-RCE/SS Equivalent & Substitute Parts
Part Overview
The PIC16C56-RCE/SS is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, featuring 1.5KB OTP program memory, 25 x 8 bytes of RAM, and 12 I/O pins. Designed for embedded applications requiring low-cost, compact control solutions, this device operates at 4MHz with an external oscillator and includes Power-On Reset (POR) and Watchdog Timer (WDT) peripherals.
The PIC16C56-RCE/SS carries an Obsolete product status. Locating equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support legacy system maintenance or redesign initiatives.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Core Processor | PIC |
| Core Size | 8-Bit |
| Speed | 4MHz |
| Program Memory Size | 1.5KB (1K x 12) |
| Program Memory Type | OTP |
| RAM Size | 25 x 8 |
| Number of I/O | 12 |
| Voltage Supply (Vcc/Vdd) | 3.25V ~ 6V |
| Operating Temperature | -40°C ~ 125°C |
| Package / Case | 20-SSOP (0.209", 5.30mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution eligibility for the PIC16C56-RCE/SS is determined by strict alignment across the following critical parameters:
- Core Architecture: PIC 8-bit processor
- Program Memory: 1.5KB OTP configuration
- RAM Configuration: 25 x 8 bytes
- I/O Count: 12 pins
- Operating Voltage Range: Compatibility within specified Vcc/Vdd limits
- Package Format: 20-SSOP surface mount
- Speed Rating: 4MHz operation
- Peripherals: POR and WDT functionality
The PIC16C56-RCI/SS qualifies as a direct substitute based on identical core specifications, memory architecture, I/O configuration, and package format. Differences in product status, temperature rating, and voltage range are noted in the parameter comparison table below.
Parameter Comparison
| Parameter | PIC16C56-RCE/SS (Main Part) | PIC16C56-RCI/SS (Substitute) |
|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology |
| Series | PIC® 16C | PIC® 16C |
| Core Processor | PIC | PIC |
| Core Size | 8-Bit | 8-Bit |
| Speed | 4MHz | 4MHz |
| Program Memory Size | 1.5KB (1K x 12) | 1.5KB (1K x 12) |
| Program Memory Type | OTP | OTP |
| RAM Size | 25 x 8 | 25 x 8 |
| Number of I/O | 12 | 12 |
| Peripherals | POR, WDT | POR, WDT |
| Voltage Supply (Vcc/Vdd) | 3.25V ~ 6V | 3V ~ 6.25V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 85°C |
| Package / Case | 20-SSOP (0.209", 5.30mm Width) | 20-SSOP (0.209", 5.30mm Width) |
| Mounting Type | Surface Mount | Surface Mount |
| Product Status | Obsolete | Active |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| MSL Rating | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
The PIC16C56-RCI/SS is the direct substitute for the obsolete PIC16C56-RCE/SS. Both parts share identical core architecture, memory configuration, I/O specifications, and package format, ensuring functional compatibility in existing designs.
The PIC16C56-RCI/SS carries Active product status, providing assured long-term availability and supply chain stability compared to the Obsolete PIC16C56-RCE/SS. Both parts maintain ROHS3 compliance and MSL Level 1 ratings, supporting equivalent environmental and handling requirements.
Design considerations: The PIC16C56-RCI/SS operates within a slightly narrower temperature range (-40°C ~ 85°C versus -40°C ~ 125°C) and a marginally extended voltage range (3V ~ 6.25V versus 3.25V ~ 6V). Applications requiring operation at temperatures above 85°C or below 3V must evaluate these parameter differences against specific system requirements.
Frequently Asked Questions (FAQ)
Q: Can the PIC16C56-RCI/SS directly replace the PIC16C56-RCE/SS in existing PCB designs?
A: Yes. Both parts use identical 20-SSOP surface mount packaging with matching pinout, memory architecture, and I/O configuration. No PCB layout modifications are required.
Q: What is the primary reason to substitute the PIC16C56-RCE/SS?
A: The PIC16C56-RCE/SS is Obsolete. The PIC16C56-RCI/SS is Active, ensuring continued availability and supply chain support for new production runs and legacy system maintenance.
Q: Are there voltage supply differences between these parts?
A: The PIC16C56-RCE/SS operates at 3.25V ~ 6V, while the PIC16C56-RCI/SS operates at 3V ~ 6.25V. The substitute part accepts slightly lower minimum voltage (3V) and slightly higher maximum voltage (6.25V). Applications operating within the original 3.25V ~ 6V window are fully compatible with both parts.
Q: Are there temperature rating differences?
A: The PIC16C56-RCE/SS is rated -40°C ~ 125°C, while the PIC16C56-RCI/SS is rated -40°C ~ 85°C. Applications requiring operation above 85°C must confirm compatibility with the substitute part's temperature specification.
Q: Do both parts meet the same compliance standards?
A: Yes. Both the PIC16C56-RCE/SS and PIC16C56-RCI/SS are ROHS3 compliant, REACH unaffected, and carry MSL Level 1 ratings. Compliance certifications are equivalent.
Q: Is the 20-SSOP package identical between both parts?
A: Yes. Both parts use the 20-SSOP package with 0.209" width and 5.30mm body dimension. Package footprints and soldering requirements are identical.
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