PIC16F84A-04/P Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
The Microchip PIC16F84A-04/P is an 8-bit PIC microcontroller running at up to 4 MHz with 1024 words of Flash program memory and 68 bytes of EEPROM data storage in an 18-pin DIP package. It features 13 I/O pins and a timer for simple embedded control tasks. A popular entry-level MCU for education, hobbyist projects, and low-complexity industrial automation.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 18
- Lifecycle
- ACTIVE
- Datasheet
- PIC16F84A-04/P Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.5470(MOQ 1)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-bit PIC16 CPU core running up to 4 MHz
- 1,024 x 14-bit words of Flash program memory
- 64 bytes of EEPROM data memory for non-volatile storage
- 13 bidirectional I/O pins for versatile interfacing
- 18-pin PDIP through-hole package for breadboard prototyping
- In-circuit serial programming (ICSP) support for easy flashing
Applications
The PIC16F84A-04/P is widely used in educational projects, hobbyist electronics, and simple industrial control tasks such as LED sequencers, digital lock controllers, and sensor threshold alarms. Its 18-pin DIP form factor makes it ideal for breadboard prototyping and through-hole PCBs where ease of hand-soldering and component replacement matters. The EEPROM data memory allows storing calibration constants or user settings without an external memory chip.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | PDIP-18 |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| 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 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 68 |
| ROM (words) | 1024 |
| ROM Programmability | FLASH |
| Screening Level | TS 16949 |
| Speed | 4MHz |
| Supply Current-Max | 10mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 4.5V |
| Supply Voltage-Nom | 4.5V |
| 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 |
| ## PIC16F84A-04/P Alternates Showing results | Image |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.31.00.15 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PIC16F84A-04/P:
Frequently Asked Questions
How much program memory does the PIC16F84A-04/P have, and what size of application firmware does it accommodate?
The PIC16F84A-04/P provides 1,024 words (each 14 bits wide) of Flash program memory, which is sufficient for simple applications with a few hundred lines of C or assembly code. Typical use cases include 4 MHz LED display controllers, binary counters, and digital switch debounce routines that fit well within the 1 KB code limit.
Can the PIC16F84A-04/P measure analog voltages from sensors, or does it require an external ADC?
The PIC16F84A-04/P does not include an on-chip ADC, so analog voltage measurement requires an external ADC chip or a comparator-based approach. Designers needing analog inputs should consider the PIC16F876A which integrates a 10-bit, 5-channel ADC in the same PIC16 family while remaining software-compatible at the peripheral register level.
Why is the PIC16F84A-04/P still a preferred choice for teaching embedded programming despite its 4 MHz clock limit?
At 4 MHz the PIC16F84A-04/P executes up to 1 MIPS, which is fast enough for blinking LEDs, scanning keyboards, and driving character LCDs — the canonical exercises in introductory MCU courses. Its 18-pin DIP package costs under a few dollars and fits standard breadboards, making hands-on labs accessible without soldering equipment or expensive development kits.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $4.5470 | $4.55 |
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