PIC16C73B-04I/SO Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip PIC16C73B-04I/SO is an 8-bit CMOS microcontroller in a 28-pin SOIC package running up to 4 MHz clock frequency. It integrates an 8-channel 8-bit ADC, 22 I/O pins, and 128 bytes of RAM for embedded control tasks. Available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- PIC16C73B-04I/SO Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $5.3200(MOQ 1)
- 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 PIC16C73B-04I/SO?
- 8-bit PIC16 CPU core running at up to 4 MHz with Harvard RISC architecture and 35 single-word instructions
- 8-channel 8-bit analog-to-digital converter enabling direct sensor interface without external ADC
- 28-pin SOIC package with 22 I/O pins providing dense I/O integration for compact PCB designs
- On-chip USART, SPI, and I2C peripherals allowing multi-protocol serial communication from a single device
What is PIC16C73B-04I/SO used for?
The PIC16C73B-04I/SO targets embedded control applications such as industrial sensor readout, consumer appliance control, and automotive accessory modules where a simple 8-bit core with integrated ADC reduces BOM cost. Its 28-pin SOIC form factor allows wave-soldering on through-hole-compatible boards and SMD assembly lines. The 4 MHz clock speed and 22 I/O pins make it well-suited for low-speed data acquisition systems operating from 2.5 V to 5.5 V supplies.
What are the specifications of PIC16C73B-04I/SO?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-28 |
| Factory Lead Time | 7Weeks |
| Date Of Intro | 1990-01-01 |
| YTEOL | 3 |
| Has ADC | YES |
| 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 |
| Number of External Interrupts | 1 |
| Number of I/O Lines | 22 |
| Number of Serial I/Os | 1 |
| Number of Timers | 7 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 14 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP28,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 250 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 192 |
| ROM (words) | 4096 |
| ROM Programmability | OTPROM |
| Speed | 4MHz |
| Supply Voltage-Max | 5.5V |
| 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 PIC16C73B-04I/SO datasheet?
PIC16C73B-04I/SO Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for PIC16C73B-04I/SO?
Compatible alternatives and drop-in replacements for PIC16C73B-04I/SO:
Frequently Asked Questions
What ADC capability does the PIC16C73B-04I/SO integrate for sensor acquisition?
The PIC16C73B-04I/SO includes an 8-channel 8-bit successive-approximation ADC, allowing it to read up to 8 analog signals with 256-level resolution. At a 4 MHz clock the conversion time is approximately 12 µs per channel, which is adequate for low-speed temperature, pressure, and position sensors commonly used in industrial control systems.
How does the PIC16C73B-04I/SO compare to more modern PIC16F devices for a new design?
The PIC16C73B-04I/SO uses OTP (one-time programmable) program memory, while modern PIC16F parts offer flash reprogramming for easier firmware iteration. For new designs requiring in-circuit firmware updates, PIC16F887 or PIC16F1827 are more suitable, but the -04I/SO remains relevant for cost-sensitive production runs where the 4 MHz clock speed and 128-byte RAM footprint already meet all requirements.
Which communication protocols does the PIC16C73B-04I/SO support natively?
The device integrates a hardware USART for asynchronous RS-232 or RS-485 communication at baud rates up to 250 kbps at 4 MHz, plus an SSP module supporting SPI and I2C interfaces up to 1 MHz. These on-chip peripherals eliminate the need for external UART or bus-interface ICs in data-logging and sensor-hub designs.
What is the operating temperature range and supply voltage for PIC16C73B-04I/SO in industrial environments?
The I-suffix grade of PIC16C73B-04I/SO is rated for an industrial operating temperature range of -40°C to +85°C. The supply voltage range spans 2.5 V to 5.5 V, allowing it to run from a single lithium-ion cell or a regulated 5 V rail, which simplifies power-supply design in field instruments and remote monitoring nodes.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $6.4100 | $6.41 |
| 25+ | $6.2500 | $156.25 |
| 50+ | $6.2100 | $310.50 |
| 100+ | $5.8600 | $586.00 |
| 1000+ | $5.5100 | $5510.00 |
| 5000+ | $5.3200 | $26600.00 |
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