PIC16F73-I/SO Microchip Integrated Circuit (Small Outline Packages) In Stock
The PIC16F73-I/SO is an 8-bit PIC16 microcontroller from Microchip with 4 KB flash, 192 bytes RAM, and 22 I/O pins in a 28-pin SOIC package. It operates at up to 20 MHz and features a built-in 8-channel 8-bit ADC with SPI, I2C, and USART peripherals. In stock worldwide with fast shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- PIC16F73-I/SO Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.5250(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-channel 8-bit ADC with multiplexed inputs enables direct connection of up to 8 analog sensors without external ADC ICs
- Integrated MSSP (SPI and I2C) and USART peripherals support multi-protocol sensor and display communication from a single 8-bit MCU
- 20 MHz maximum clock at 200 ns instruction cycle provides sufficient throughput for real-time sensor polling at 10 kHz update rates
- 28-pin SOIC surface-mount package reduces PCB area versus DIP variants while maintaining standard 1.27 mm pitch for ease of hand soldering
- In-circuit serial programming via 2-wire ICSP enables firmware updates without removing the MCU from the target board
Applications
The PIC16F73-I/SO targets simple to moderate embedded control applications such as appliance control panels, agricultural sensor loggers, and motor speed controllers that benefit from an 8-channel ADC in a compact SOIC footprint. Its combination of SPI, I2C, and USART makes it suitable for multi-sensor node designs that read temperature, humidity, and pressure from different protocol sensors simultaneously. The 28-pin SOIC package integrates well into cost-sensitive consumer electronics and industrial control PCBs with standard SMT assembly.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-28 |
| Factory Lead Time | 5Weeks |
| YTEOL | 8 |
| Has ADC | YES |
| 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 External Interrupts | 1 |
| Number of I/O Lines | 22 |
| Number of Serial I/Os | 1 |
| Number of Timers | 5 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| 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) | 192 |
| ROM (words) | 7168 |
| ROM Programmability | FLASH |
| Speed | 20MHz |
| Supply Current-Max | 15mA |
| 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 |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| 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 PIC16F73-I/SO:
Frequently Asked Questions
How many analog input channels does the PIC16F73-I/SO have and what ADC resolution does it provide?
The PIC16F73-I/SO includes an 8-channel, 8-bit successive-approximation ADC multiplexed from its I/O pins. The 8-bit resolution provides 256 counts over the reference voltage range, yielding approximately 19.5 mV per LSB on a 5V reference. At 20 MHz clock, the ADC achieves conversion times of approximately 20 µs per channel, enabling sequential 8-channel scans at roughly 6 kHz aggregate sample rate for multi-sensor monitoring.
How does the PIC16F73-I/SO compare to PIC16F876-20/SP for a new design requiring SOIC packaging?
Both devices run at 20 MHz in 28-pin packages and share the same PIC16 core, but the PIC16F876 offers 14 KB of flash and 368 bytes of RAM versus the PIC16F73's 4 KB flash and 192 bytes of RAM. The PIC16F876 also adds a 10-bit ADC versus 8-bit on the PIC16F73. For simpler firmware under 4 KB with 8-bit ADC accuracy sufficient, the PIC16F73-I/SO in SOIC-28 is the lower-cost option with a 5-week lead time.
Can the PIC16F73-I/SO run from a single 3.3V supply in a battery-powered wireless sensor node?
The PIC16F73-I/SO operates from 2.0V to 5.5V supply voltage, making it compatible with a 3V lithium coin cell or 3.3V regulated LDO output. At 3.3V and 4 MHz, current consumption drops to approximately 1 mA in active mode and under 15 µA in sleep mode, allowing a 1,000 mAh AA-cell pack to sustain the MCU in low-duty-cycle sleep-and-wake sensor sampling for over 3 years.
What serial communication peripherals are built into the PIC16F73-I/SO for connecting to displays and radio modules?
The PIC16F73-I/SO integrates an MSSP module configurable as SPI Master at up to 5 Mbps or I2C at 100 kHz or 400 kHz, plus a USART supporting asynchronous RS-232 at baud rates from 300 bps to 115 kbps at 20 MHz. This allows simultaneous connection to an SPI LCD display, an I2C sensor, and a UART Bluetooth module using all 3 hardware serial peripherals without GPIO bit-banging.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $4.6400 | $4.64 |
| 7+ | $4.5990 | $32.19 |
| 432+ | $4.5250 | $1954.80 |
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