PIC16F628A-I/P Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
PIC16F628A-I/P is an 8-bit Flash PIC microcontroller from Microchip running at up to 20 MHz with 2 KB Flash, 224 bytes RAM, and comparators in an 18-pin DIP package. A popular hobbyist and educational MCU available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 18
- Lifecycle
- ACTIVE
- Datasheet
- PIC16F628A-I/P Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.1900(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 PIC16 core up to 20 MHz (5 MIPS)
- 2 KB Flash program memory with self-write capability
- 128 bytes EEPROM for non-volatile data storage
- Dual analog comparators with programmable reference
- Internal 4 MHz calibrated RC oscillator
- PDIP-18 through-hole package for breadboard prototyping
Applications
The PIC16F628A-I/P is widely used in hobbyist projects, educational curricula, and low-cost industrial control tasks requiring simple digital I/O, timer, and USART functions. Its internal 4 MHz RC oscillator eliminates the need for an external crystal in many applications, reducing component count and simplifying PCB layout. The through-hole PDIP-18 package enables direct breadboard prototyping, making it a favorite for learning embedded systems and quick-turn prototype builds.
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 | 20MHz |
| 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 | 16 |
| Number of Timers | 3 |
| On Chip Program ROM Width | 14 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP18,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| RAM (bytes) | 224 |
| ROM (words) | 2048 |
| ROM Programmability | FLASH |
| Screening Level | TS 16949 |
| Speed | 20MHz |
| Supply Current-Max | 3.5mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 3V |
| Supply Voltage-Nom | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| ## PIC16F628A-I/P Alternates Showing results | Image |
| 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 PIC16F628A-I/P:
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 20MHz, CMOS, PDIP18
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Frequently Asked Questions
Does the PIC16F628A-I/P include any non-volatile data memory beyond Flash for storing configuration settings?
Yes, the PIC16F628A-I/P includes 128 bytes of internal EEPROM data memory that retains values across power cycles without external ICs. This storage is suitable for calibration constants, device addresses, or user preferences in applications such as timers, sequencers, and simple control panels running at up to 20 MHz.
What clock source options does the PIC16F628A-I/P offer and when should the internal oscillator be used?
The PIC16F628A-I/P supports an internal calibrated 4 MHz RC oscillator, an external crystal up to 20 MHz, and an external clock input. The internal oscillator is preferred in cost-sensitive designs where timing accuracy within a few percent is acceptable, saving the cost of a crystal and two load capacitors while simplifying PCB layout.
How does the analog comparator of the PIC16F628A-I/P enable zero-crossing detection or battery monitoring without an ADC?
The PIC16F628A-I/P integrates 2 analog comparators with a programmable internal voltage reference, allowing threshold detection of analog signals without a full ADC conversion. For battery monitoring, one comparator can flag when the supply drops below a 1.25 V to 2.5 V reference level, triggering a low-battery interrupt in firmware running at 20 MHz.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.6410 | $2.64 |
| 4+ | $2.6301 | $10.52 |
| 8+ | $2.5921 | $20.74 |
| 16+ | $2.5541 | $40.87 |
| 100+ | $2.3200 | $232.00 |
| 1000+ | $2.1900 | $2190.00 |
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