PIC16C55A-20/SO Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip PIC16C55A-20/SO is an 8-bit PIC microcontroller with 0.75KB program memory, 24 bytes RAM, and 20 I/O pins running at up to 20 MHz in a 28-pin SOIC package. Available from stock worldwide with competitive pricing and fast shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- PIC16C55A-20/SO Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-bit PIC16 CPU core running at up to 20 MHz clock frequency for efficient embedded control tasks
- 20 general-purpose I/O pins with 0.75KB program memory and 24 bytes RAM in a single chip
- Compact 28-pin SOIC package for space-constrained PCB designs with standard surface-mount assembly
- Lead-free and RoHS compliant construction meeting global environmental standards for electronics manufacturing
Applications
The PIC16C55A-20/SO is well-suited for simple embedded control applications such as home appliance controllers, industrial automation relays, and low-cost consumer electronics. Its 20 I/O pins and 20 MHz clock make it effective for basic sensor interfacing, LED driving, and keyboard scanning tasks. The SOIC-28 package enables use in compact designs where through-hole alternatives are impractical.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-28 |
| Factory Lead Time | 13Weeks |
| Date Of Intro | 1990-01-01 |
| YTEOL | 3 |
| Has ADC | NO |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC16 |
| Clock Frequency-Max | 20MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| Format | FIXED POINT |
| Integrated Cache | NO |
| JESD-30 Code | R-PDSO-G28 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of I/O Lines | 20 |
| Number of Timers | 1 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 12 |
| PWM Channels | NO |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP28,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 24 |
| RAM (words) | 24 |
| ROM (words) | 512 |
| ROM Programmability | OTPROM |
| Speed | 20MHz |
| Supply Current-Max | 3.3mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 5V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PIC16C55A-20/SO:
RISC Microcontroller, 8-Bit, OTPROM, PIC16 CPU, 20MHz, CMOS, PDSO28
Frequently Asked Questions
What are the core specifications of the PIC16C55A-20/SO microcontroller?
The PIC16C55A-20/SO is an 8-bit PIC16-family microcontroller featuring 0.75KB of program memory, 24 bytes of RAM, 20 I/O pins, and a maximum clock frequency of 20 MHz. It does not include an on-chip ADC, making it suited for purely digital control applications.
What package does the PIC16C55A-20/SO use and what are the dimensions?
The PIC16C55A-20/SO uses a 28-pin Small Outline IC (SOIC-28) package per manufacturer code SOIC-28. This surface-mount package is compact and compatible with standard SMT reflow processes, enabling integration into space-efficient PCB layouts.
Is the PIC16C55A-20/SO still in production and what is the lead time?
The PIC16C55A-20/SO has a factory lead time of approximately 13 weeks as of current availability data, with a YTEOL (years to end-of-life) rating of 3. It was introduced in 1990, and buyers should verify current lifecycle status with distributors before designing new products.
What typical applications suit the PIC16C55A-20/SO microcontroller?
This MCU is ideal for legacy embedded designs, appliance control panels, LED matrix drivers, and simple digital I/O tasks. With 20 I/O pins and no ADC, it excels in digital-heavy applications like relay sequencers, timer-based controls, and keypad interfaces in industrial and consumer products.
Does the PIC16C55A-20/SO support boundary scan or ADC functionality?
No, the PIC16C55A-20/SO does not support boundary scan (JTAG) or include an on-chip analog-to-digital converter (ADC). For applications requiring analog sensing, a separate external ADC or a different Microchip PIC variant with integrated ADC would be required.
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