PIC16C54RC/SO Microchip Integrated Circuit (Small Outline Packages) In Stock
The PIC16C54RC/SO is an 8-bit OTP microcontroller running at up to 4 MHz with 512 words of program memory and 25 bytes of RAM in an SOIC package, designed for simple low-cost embedded control tasks. Available from stock worldwide with fast shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 18
- Lifecycle
- ACTIVE
- Datasheet
- PIC16C54RC/SO Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-bit RISC-based PIC architecture executing instructions in a single 4 MHz clock cycle
- 512 words of one-time programmable (OTP) ROM for fixed embedded firmware applications
- 25 bytes of on-chip SRAM data memory sufficient for simple state-machine control loops
- Up to 12 general-purpose I/O pins for direct sensor and actuator interfacing
- Low-power CMOS design suitable for battery-operated and cost-sensitive consumer products
- 18-pin SOIC small-outline package enabling compact SMT board assembly
Applications
The PIC16C54RC/SO is well-suited for simple embedded control tasks such as appliance timer circuits, toy control, keypad scanning, and LED sequencing where a minimal instruction set and low unit cost outweigh the need for reprogrammability. Its OTP program memory makes it appropriate for high-volume production runs where firmware is finalized before manufacturing, eliminating the cost premium of flash-based devices. The SOIC package fits standard SMT assembly processes, supporting automated pick-and-place production.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PIC16C54RC/SO:
RISC Microcontroller, 8-Bit, OTPROM, PIC16 CPU, 4MHz, CMOS, PDSO18
RISC Microcontroller, 8-Bit, OTPROM, PIC16 CPU, 4MHz, CMOS, PDSO18
RISC Microcontroller, 8-Bit, OTPROM, PIC16 CPU, 4MHz, CMOS, PDSO18
Frequently Asked Questions
What clock speed and program memory capacity does the PIC16C54RC/SO provide?
The PIC16C54RC/SO operates at up to 4 MHz and contains 512 words of OTP program memory along with 25 bytes of on-chip SRAM. This combination supports small but complete firmware images for tasks such as simple state machines, timer functions, or sequential I/O control in cost-sensitive consumer and appliance products.
How does the OTP memory of the PIC16C54RC/SO affect production and firmware planning?
Because the PIC16C54RC/SO uses one-time programmable memory, the firmware must be fully verified before devices are programmed in production—there is no way to update or correct code in the field. This approach lowers per-unit cost versus flash devices and is suitable for stable, mature designs with well-tested firmware, such as appliance controllers or fixed-function toy logic running at 4 MHz.
How many I/O pins does the PIC16C54RC/SO offer and what are typical load-driving limits?
The PIC16C54RC/SO provides up to 12 general-purpose digital I/O pins, each capable of sourcing or sinking approximately 25 mA, allowing direct drive of indicator LEDs and small signal loads without external buffer transistors. This pin count covers most simple control panels, keypad interfaces, and sensor inputs found in home appliances or toys.
When would a designer choose the PIC16C54RC/SO over a PIC16F device for a new product?
The PIC16C54RC/SO makes economic sense in very high-volume, fixed-firmware applications where the 4 MHz OTP variant's lower unit price justifies the inability to reprogram. PIC16F flash devices are preferred for prototyping or products requiring field firmware updates, but once firmware is frozen and volumes exceed tens of thousands of units, the OTP PIC16C54RC/SO can reduce per-unit BOM cost measurably.
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