PIC16C642-04I/SO Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip PIC16C642-04I/SO is an 8-bit PIC microcontroller with EPROM memory running at up to 4 MHz clock frequency. It integrates 28-pin SOIC packaging with the PIC16 core architecture for reliable embedded control in industrial environments. Available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- PIC16C642-04I/SO Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $5.3400(MOQ 54)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PIC16C642-04I/SO?
- 8-bit PIC16 CPU core running at up to 4 MHz, proven in thousands of embedded control applications since 1993
- EPROM program memory enabling field reprogramming and prototype iteration without dedicated OTP flash infrastructure
- 28-pin SOIC package offering a compact SMT footprint suitable for space-constrained control boards
What is PIC16C642-04I/SO used for?
The PIC16C642-04I/SO is well suited for legacy industrial control panels, appliance controllers, and sensor interface circuits that require a reliable 8-bit microcontroller with EPROM flexibility. Its 4 MHz maximum clock and SOIC-28 footprint make it a direct-fit replacement or upgrade path in existing PIC16 board designs requiring long-term component availability and field reprogrammability.
What are the specifications of PIC16C642-04I/SO?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-28 |
| Factory Lead Time | 11Weeks |
| Date Of Intro | 1993-07-01 |
| YTEOL | 3 |
| Has ADC | NO |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC16 |
| Clock Frequency-Max | 4MHz |
| 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 External Interrupts | 1 |
| Number of I/O Lines | 22 |
| Number of Timers | 3 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 14 |
| 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) | 176 |
| ROM (words) | 4096 |
| ROM Programmability | OTPROM |
| Speed | 4MHz |
| Supply Current-Max | 5mA |
| Supply Voltage-Max | 6V |
| Supply Voltage-Min | 5V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| 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 |
Where can I find the PIC16C642-04I/SO datasheet?
PIC16C642-04I/SO Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for PIC16C642-04I/SO?
Compatible alternatives and drop-in replacements for PIC16C642-04I/SO:
RISC Microcontroller, 8-Bit, OTPROM, PIC CPU, 4MHz, CMOS, PDSO28
RISC Microcontroller, 8-Bit, OTPROM, PIC16 CPU, 4MHz, CMOS, PDSO28
RISC Microcontroller, 8-Bit, EPROM, PIC16 CPU, 4MHz, CMOS, PDSO28
Frequently Asked Questions
What is the maximum clock frequency of the PIC16C642-04I/SO and how does it affect processing throughput?
The PIC16C642-04I/SO operates at a maximum clock frequency of 4 MHz, which translates to 1 million instructions per second (1 MIPS) since the PIC16 architecture executes most instructions in 4 clock cycles. This throughput is ample for simple I/O control, serial communication at up to 115200 baud, and timer-based PWM generation in 8-bit embedded applications.
How does the EPROM memory type of the PIC16C642-04I/SO differ from flash-based PIC variants for prototyping?
Unlike one-time programmable (OTP) devices, the EPROM in the PIC16C642-04I/SO can be erased with UV light and reprogrammed multiple times, allowing firmware iteration during prototyping. However, EPROM erase requires a UV eraser and takes approximately 15 to 30 minutes per cycle, which is slower than the in-circuit flash reprogramming offered by newer PIC16F devices.
Which industrial temperature-range applications are supported by the PIC16C642-04I/SO?
The -04I suffix designates the industrial temperature grade, meaning the device operates reliably from -40°C to +85°C. This makes it suitable for outdoor sensor nodes, factory-floor control modules, and HVAC controllers where ambient temperatures fluctuate significantly across seasons or installation environments.
What are the pin count and package dimensions of the SOIC-28 version of the PIC16C642-04I/SO?
The device comes in a 28-pin SOIC (Small Outline Integrated Circuit) package with 0.050 inch (1.27 mm) pin pitch. The SOIC-28 body measures approximately 17.9 mm long and 7.5 mm wide, making it compatible with standard SMT reflow assembly and fitting within a compact 20 mm × 10 mm PCB footprint.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 54+ | $6.0400 | $326.16 |
| 100+ | $5.8900 | $589.00 |
| 1000+ | $5.5300 | $5530.00 |
| 5000+ | $5.3400 | $26700.00 |
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