PIC16F628-20I/P Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
Microchip PIC16F628-20I/P is an 8-bit PIC16 microcontroller with 3.5KB Flash, 224B RAM, comparators, and USART running up to 20 MHz in an 18-pin PDIP through-hole package. Available from stock worldwide with fast shipping.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 18
- Lifecycle
- ACTIVE
- Datasheet
- PIC16F628-20I/P Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.2100(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PIC16F628-20I/P?
- 3.5KB Flash program memory with internal 4 MHz RC oscillator, eliminating external crystal in cost-sensitive standalone control applications
- Dual analog comparators with voltage reference enable threshold detection and waveform generation without discrete comparator ICs
- 18-pin PDIP through-hole package supports breadboard prototyping and hand-soldered production at 20 MHz maximum clock speed
What is PIC16F628-20I/P used for?
The PIC16F628-20I/P suits simple embedded control tasks such as relay drivers, keypad decoders, serial protocol converters, and basic motor speed controllers where a minimal 8-bit MCU with USART and comparators is sufficient. Its 18-pin PDIP form factor is widely used in hobby electronics, educational kits, and low-volume industrial appliance controls where through-hole assembly is preferred. The on-chip oscillator reduces BOM cost in applications that do not require precise timing.
What are the specifications of PIC16F628-20I/P?
| Pbfree Code | Yes |
| Manufacturer Package Code | PDIP-18 |
| Factory Lead Time | 6Weeks |
| Date Of Intro | 1999-06-07 |
| YTEOL | 3 |
| 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 Serial I/Os | 1 |
| Number of Timers | 3 |
| On Chip Data RAM Width | 8 |
| 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 |
| Speed | 20MHz |
| Supply Current-Max | 7mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 5V |
| 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 |
| 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 |
Where can I find the PIC16F628-20I/P datasheet?
PIC16F628-20I/P Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for PIC16F628-20I/P?
Compatible alternatives and drop-in replacements for PIC16F628-20I/P:
Microchip Technology Inc 18LD 20MHZ 2K FLASH
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 20MHz, CMOS, PDIP18
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 20MHz, CMOS, PDIP18
Frequently Asked Questions
Can PIC16F628-20I/P run without an external crystal, and at what clock frequency?
Yes, PIC16F628-20I/P includes a factory-calibrated internal RC oscillator that runs at approximately 4 MHz, allowing fully stand-alone operation without an external crystal or ceramic resonator. For applications tolerating ±1% frequency variation, such as USART at low baud rates or timer-based PWM, the internal oscillator reduces external component count to zero clock-related parts.
For a battery-management charger circuit, how do PIC16F628-20I/P's comparators help reduce external components?
PIC16F628-20I/P integrates 2 analog comparators with a programmable internal voltage reference. These allow direct threshold detection of battery cell voltage or current-sense resistor voltage at levels configurable in 16 steps from 0.25V to 0.75V times VDD, replacing 2 external comparator ICs and their resistor dividers in simple over-voltage or over-current protection designs.
How does PIC16F628-20I/P compare to PIC16F628A when selecting between them for a new design?
PIC16F628A is the enhanced successor to PIC16F628-20I/P with identical 3.5KB Flash, 224B RAM, and 18-pin PDIP footprint but improved internal oscillator accuracy of ±1% versus ±2% on the original, plus an additional Timer module. For new designs PIC16F628A is preferred; PIC16F628-20I/P remains available as a 20 MHz-rated drop-in for legacy boards at potentially lower cost.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $3.4562 | $3.46 |
| 1000+ | $3.3400 | $3340.00 |
| 5000+ | $3.2100 | $16050.00 |
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