PIC16C73B-04I/SS Microchip Integrated Circuit (Small Outline Packages) In Stock
The PIC16C73B-04I/SS is an 8-bit CMOS OTP microcontroller from Microchip's PIC16C family, operating at up to 4 MHz with an integrated ADC, 22 I/O pins, and 28-pin SSOP package. It suits low-cost embedded control applications requiring on-chip analog conversion and compact form factor.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- PIC16C73B-04I/SS Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $16.7053(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-bit PIC CPU core at up to 4 MHz with single-cycle instruction execution for efficient low-power embedded control
- Integrated ADC with multiple channels enables direct analog sensor measurement without external conversion hardware in 28-pin SSOP footprint
- OTP (One-Time Programmable) Flash program memory for production-ready code lock-down in cost-sensitive consumer and industrial applications
Applications
The PIC16C73B-04I/SS is used in home appliance controllers, simple motor drives, and low-cost sensor interface boards where 8-bit processing at 4 MHz and integrated ADC capability are sufficient. Its 22 I/O pins and analog inputs support direct connection to resistive sensors, switches, and displays in standalone embedded systems without external peripherals. Consumer electronics, HVAC controls, and simple industrial timers benefit from its OTP memory, which fixes firmware at production and prevents field modification.
Specifications
| Pbfree Code | Yes |
| YTEOL | 3 |
| Has ADC | YES |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC |
| Clock Frequency-Max | 4MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| JESD-30 Code | R-PDSO-G28 |
| JESD-609 Code | e3 |
| Number of I/O Lines | 22 |
| On Chip Program ROM Width | 14 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SSOP28,.3 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, SHRINK PITCH |
| Qualification Status | Not Qualified |
| RAM (bytes) | 192 |
| ROM (words) | 4096 |
| ROM Programmability | OTPROM |
| Screening Level | ISO/TS-16949 |
| Speed | 4MHz |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 4.5V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| 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 PIC16C73B-04I/SS:
Frequently Asked Questions
What is the maximum clock frequency of the PIC16C73B-04I/SS and how does this affect instruction throughput for a control loop?
The PIC16C73B-04I/SS runs at a maximum clock frequency of 4 MHz, executing most instructions in 1 µs since the PIC architecture completes one instruction every 4 clock cycles. A simple PID control loop with 20 to 30 instructions executes in approximately 20 µs to 30 µs, supporting control update rates up to 33 kHz for low-bandwidth motor or temperature regulation applications.
How does the integrated ADC of the PIC16C73B-04I/SS simplify analog sensor interfacing compared to an MCU without ADC?
The on-chip ADC eliminates the need for an external analog-to-digital converter IC, saving PCB space and BOM cost in applications measuring analog signals from thermistors, potentiometers, or 0 V to 5 V transducers. With 8 bits of ADC resolution providing 256 quantization steps and multiple selectable input channels routed through an internal multiplexer, the PIC16C73B-04I/SS handles multi-channel analog measurement with only 2 wires per sensor versus 8 or more required by an external SPI ADC.
For a legacy appliance controller design, when is the PIC16C73B-04I/SS OTP program memory preferable over Flash-based PIC devices?
OTP program memory in the PIC16C73B-04I/SS is lower cost per unit than Flash-based alternatives in high-volume production runs exceeding 10,000 units, as it eliminates the Flash erase/write circuitry overhead. Once programmed, OTP code cannot be overwritten, providing inherent protection against unauthorized firmware modification in consumer appliances and locks the 4 MHz operating point for validated designs. Flash parts such as PIC16F873A are preferred during development where reprogram iterations are needed, while OTP suits final locked production versions.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $20.8816 | $20.88 |
| 54+ | $17.7494 | $958.47 |
| 114+ | $16.7053 | $1904.40 |
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