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PIC16C56T-RCE/SS Equivalent & Substitute Parts
Part Overview
The PIC16C56T-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 PIC16C56T-RCE/SS carries an Obsolete product status. Locating equivalent substitute parts is necessary to support legacy system maintenance, design updates, and continued production of equipment utilizing this microcontroller.
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 |
| Peripherals | POR, WDT |
| Oscillator Type | External |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 20-SSOP (0.209", 5.30mm Width) |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the PIC16C56T-RCE/SS is determined by strict alignment across the following critical parameters:
- Core Processor & Architecture: Must be PIC processor family
- Core Size: Must be 8-Bit
- Program Memory: Must be 1.5KB (1K x 12) OTP
- RAM Configuration: Must be 25 x 8 bytes
- I/O Count: Must provide 12 I/O pins
- Speed: Must support 4MHz operation
- Package: Must be 20-SSOP form factor
- Voltage Supply Range: Must accommodate 3.25V ~ 6V minimum requirement
- Peripherals: Must include POR and WDT functionality
- Oscillator: Must support external oscillator configuration
The PIC16C56-RCI/SS meets all substitution criteria as a direct equivalent within the PIC® 16C series, sharing identical core architecture, memory configuration, I/O capability, and package specifications.
Parameter Comparison
| Parameter | PIC16C56T-RCE/SS (Main) | PIC16C56-RCI/SS (Substitute) |
|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology |
| 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 |
| Voltage - Supply (Vcc/Vdd) | 3.25V ~ 6V | 3V ~ 6.25V |
| Peripherals | POR, WDT | POR, WDT |
| Oscillator Type | External | External |
| Operating Temperature | -40°C ~ 125°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 20-SSOP (0.209", 5.30mm Width) | 20-SSOP (0.209", 5.30mm Width) |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Obsolete | Active |
Engineering Selection Recommendations
The PIC16C56-RCI/SS is a direct functional equivalent to the PIC16C56T-RCE/SS. Both devices share identical core architecture, memory configuration, I/O capability, and package specifications. The substitute part carries Active product status, ensuring continued availability and supply chain support compared to the Obsolete main part.
Both parts maintain ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements. The voltage supply range of the substitute (3V ~ 6.25V) encompasses the main part's requirement (3.25V ~ 6V), ensuring compatibility in existing power supply designs.
The operating temperature range differs: the main part supports -40°C ~ 125°C, while the substitute supports -40°C ~ 85°C. Applications requiring operation above 85°C must retain the original part or evaluate alternative solutions outside this substitute group.
Frequently Asked Questions (FAQ)
Q: Can PIC16C56-RCI/SS directly replace PIC16C56T-RCE/SS in existing designs?
A: Yes. Both parts are functionally identical across all critical parameters: 8-bit core, 1.5KB OTP memory, 25 x 8 RAM, 12 I/O pins, 4MHz speed, and 20-SSOP package. Pin-for-pin compatibility is maintained.
Q: What is the key difference between these two parts?
A: Product status and operating temperature range. The PIC16C56T-RCE/SS is Obsolete with -40°C ~ 125°C operation. The PIC16C56-RCI/SS is Active with -40°C ~ 85°C operation. The substitute offers better supply availability.
Q: Are there voltage supply compatibility concerns?
A: No. The substitute's voltage range (3V ~ 6.25V) fully encompasses the main part's requirement (3.25V ~ 6V). Existing power supply designs require no modification.
Q: Does the substitute support the same package and mounting type?
A: Yes. Both parts use 20-SSOP surface mount packaging with identical physical dimensions (0.209", 5.30mm width). PCB layouts and assembly processes remain unchanged.
Q: What applications are affected by the operating temperature difference?
A: Applications requiring sustained operation above 85°C ambient temperature cannot use the substitute. Designs operating within -40°C ~ 85°C are unaffected.
Q: Are both parts RoHS and REACH compliant?
A: Yes. Both the PIC16C56T-RCE/SS and PIC16C56-RCI/SS are ROHS3 compliant and REACH unaffected, meeting current environmental regulations.
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