PIC16F84-04/P Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
PIC16F84-04/P is an 8-bit PIC RISC microcontroller from Microchip with 1.75 KB Flash program memory and a maximum clock frequency of 4 MHz, operating at 5 V supply. It is housed in an 18-pin PDIP through-hole package ideal for breadboard prototyping and educational projects. Available with 6-week lead time and worldwide shipping.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 18
- Lifecycle
- ACTIVE
- Datasheet
- PIC16F84-04/P 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 PIC RISC architecture with 1.75 KB Flash program memory and 4 MHz maximum clock for cost-effective embedded control
- 5 V operation in an 18-pin PDIP package, enabling easy breadboard prototyping and in-circuit debugging without soldering
- 64 bytes EEPROM data memory for non-volatile parameter storage without external memory ICs
- ICSP (In-Circuit Serial Programming) support through 2-wire interface for fast firmware updates in the field
- Wide temperature and voltage tolerance making it suitable for educational, hobbyist, and simple industrial control applications
Applications
The PIC16F84-04/P is a classic 8-bit microcontroller widely used in electronics education, hobbyist projects, and simple control tasks such as LED matrix drivers, keypad scanners, and relay sequencers operating at 5 V. Its 18-pin PDIP package and 4 MHz clock make it ideal for battery-powered gadgets, small home automation controllers, and sensor interface boards where code simplicity and ease of breadboard prototyping matter more than raw processing speed. Legacy industrial equipment designs that have been running PIC16F84-based firmware for over 20 years continue to use this part for identical replacements during maintenance cycles.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | PDIP-18 |
| Factory Lead Time | 6Weeks |
| Date Of Intro | 1990-01-01 |
| 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-PDIP-T18 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of External Interrupts | 1 |
| Number of I/O Lines | 13 |
| 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 | DIP18,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| RAM (bytes) | 68 |
| RAM (words) | 68 |
| ROM (words) | 1024 |
| ROM Programmability | FLASH |
| Screening Level | TS-16949 |
| Speed | 4MHz |
| Supply Current-Max | 10mA |
| Supply Voltage-Max | 6V |
| Supply Voltage-Min | 4V |
| Supply Voltage-Nom | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PIC16F84-04/P:
Frequently Asked Questions
What is the maximum clock frequency and program memory size of the PIC16F84-04/P?
The PIC16F84-04/P runs at a maximum clock frequency of 4 MHz and provides 1.75 KB of Flash program memory alongside 64 bytes of data EEPROM. These specifications make it adequate for simple state machines, sensor polling loops, and protocol bit-banging tasks in 8-bit embedded designs operating at 5 V supply.
Does the PIC16F84-04/P include an analog-to-digital converter, and what are the implications for sensor designs?
No, the PIC16F84-04/P does not include an on-chip ADC. Sensor designs that require analog signal measurement must use an external ADC IC connected via SPI or I2C, or switch to a pin-compatible PIC16F84A or a modern replacement like the PIC16F628A which adds an 8-channel 10-bit ADC and runs at up to 20 MHz, offering far more capability for sensor-based applications.
What is the factory lead time and YTEOL for PIC16F84-04/P, and should new designs use it?
The PIC16F84-04/P has a 6-week factory lead time but a YTEOL (Years To End Of Life) of only 3 years, and was introduced in 1990, making it a very mature part approaching end-of-life. New designs should migrate to the PIC16F628A or PIC16F18313 which offer more program memory (up to 14 KB), integrated ADC, and more I/O pins, while the PIC16F84-04/P is best suited only for legacy maintenance orders.
Which package does the PIC16F84-04/P use, and how does it affect prototyping?
The PIC16F84-04/P uses an 18-pin PDIP (PDIP-18) through-hole package with 2.54 mm lead pitch, which plugs directly into standard breadboards and DIP sockets without any adapters. This makes it the preferred choice for classroom labs and prototyping sessions where soldering SMT ICs is impractical, unlike the SOIC or QFP variants of more modern PIC devices.
How does the PIC16F84-04/P compare to the PIC16F628A as a drop-in upgrade for legacy boards?
The PIC16F628A is Microchip's recommended upgrade path from the PIC16F84-04/P, offering 2 KB of Flash, an 8-channel 10-bit ADC, a hardware USART, and up to 20 MHz operation, all in the same 18-pin PDIP footprint with 5 V compatibility. For boards with enough spare clock cycles, a simple firmware recompile targeting PIC16F628A typically takes under 8 hours and immediately gains access to hardware serial communication and analog sensing not available on the PIC16F84-04/P.
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