PIC16F628A-I/ML Microchip Integrated Circuit (Quad Flat No-Lead) In Stock
Microchip PIC16F628A-I/ML is an 8-bit PIC16 microcontroller running up to 20 MHz in a compact 6x6 mm QFN-28 package with 2K words of flash and 128 bytes of RAM. It includes an on-chip comparator, timer modules, and USART. Available from stock worldwide.
- Manufacturer
- Microchip
- Package
- Quad Flat No-Lead
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- PIC16F628A-I/ML Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.5800(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 clocked up to 20 MHz with 2048-word flash program memory
- Compact 6x6 mm, 0.55 mm height QFN-28 package for space-constrained PCB designs
- On-chip analog comparator, 3 timer modules, and USART for versatile peripheral integration
Applications
The PIC16F628A-I/ML is well-suited for compact consumer electronics, home automation nodes, and low-cost sensor interfaces where board space is at a premium. Its 20 MHz clock and built-in USART support reliable serial communication in battery-operated remote controls and smart appliance control modules. The QFN-28 footprint enables dense multi-chip board layouts.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | VQFN-28 |
| 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 | S-PQCC-N28 |
| 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 | LCC28,.24SQ,25 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, VERY THIN PROFILE, HEAT SINK/SLUG |
| Peak Reflow Temperature (Cel) | 260 |
| 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 | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.65mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Quad Flat No-Lead |
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 | Philippines, Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PIC16F628A-I/ML:
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 20MHz, CMOS, PQCC28
Frequently Asked Questions
How much flash and RAM does the PIC16F628A-I/ML provide for typical firmware projects?
The PIC16F628A-I/ML provides 2048 words (approximately 3.5 KB) of flash program memory and 128 bytes of RAM, sufficient for simple state-machine firmware, UART command parsers, and small lookup tables running at up to 20 MHz.
Which space-constrained designs benefit from the PIC16F628A-I/ML's QFN-28 package dimensions?
At 6x6 mm with a 0.55 mm package height, the QFN-28 footprint fits within coin-cell-powered wearable sensor nodes, miniature relay drivers, and compact keypad controllers where a DIP or SOIC package would exceed the available board area.
Can the PIC16F628A-I/ML handle UART-based communication with a host microprocessor at 20 MHz?
Yes. The on-chip USART supports standard baud rates up to 115,200 bps when the device is clocked at 20 MHz, making it suitable for serial command interfaces, sensor data forwarding, and debug logging in embedded systems.
When is the PIC16F628A-I/ML preferred over the PIC16F627A for a new design?
The PIC16F628A-I/ML offers 2048 words of flash versus 1024 words in the PIC16F627A, doubling available program space. Both share pin-compatible 28-pin layouts, so the upgrade requires no hardware re-spin while allowing more complex firmware at up to 20 MHz.
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