PIC16F627-20/SO Microchip Integrated Circuit (Small Outline Packages) In Stock
PIC16F627-20/SO is an 8-bit PIC microcontroller with 1.75 KB of flash program memory, 224 bytes of SRAM, and 16 I/O pins in an 18-pin SOIC package. It runs at up to 20 MHz and includes on-chip comparators and a UART peripheral. Suited for simple embedded control tasks in consumer electronics, appliance timers, and sensor interface boards.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 18
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- PIC16F627-20/SO Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.1095(MOQ 1)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PIC16F627-20/SO?
- 8-bit PIC16 CPU core running up to 20 MHz with 4-clock single-cycle instruction execution
- 1.75 KB flash program memory with in-circuit serial programming (ICSP) support
- 224 bytes of on-chip SRAM for data and stack storage
- 16 GPIO pins with configurable pull-ups, shareable with UART and comparator peripherals
- On-chip analog comparator module eliminates external op-amp for threshold detection
- 18-pin SOIC package for surface-mount designs with 1.27 mm pitch
What is PIC16F627-20/SO used for?
PIC16F627-20/SO is used in low-cost appliance control panels, LED dimmer circuits, and simple motor sequencers that require a compact 8-bit microcontroller with onboard UART and comparator without external components. It targets consumer electronics hobbyist projects and educational platforms where the PIC architecture and MPLAB toolchain are already familiar. Legacy industrial sensor modules and thermostat controllers also use this device as a low-power 5 V control core with direct relay-drive capability on its 25 mA I/O pins.
What are the specifications of PIC16F627-20/SO?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-18 |
| 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-PDSO-G18 |
| 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 | SOP18,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 224 |
| ROM (words) | 1024 |
| ROM Programmability | FLASH |
| Speed | 20MHz |
| Supply Current-Max | 7mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 5V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.31.00.15 |
| Country of Origin | Thailand |
Where can I find the PIC16F627-20/SO datasheet?
PIC16F627-20/SO Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for PIC16F627-20/SO?
Compatible alternatives and drop-in replacements for PIC16F627-20/SO:
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 20MHz, CMOS, PDSO18
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 20MHz, CMOS, PDSO20
Frequently Asked Questions
How much program memory and RAM does PIC16F627-20/SO provide for user firmware?
PIC16F627-20/SO provides 1.75 KB (1792 bytes equivalent, or 1024 14-bit instructions) of flash program memory and 224 bytes of SRAM for data storage. The flash supports in-circuit serial programming (ICSP) via 2 dedicated pins, allowing the device to be programmed and reprogrammed after soldering. With 16 I/O pins available, the 224-byte RAM is adequate for firmware implementing simple state machines, UART buffering, or comparator-based threshold control loops.
Does PIC16F627-20/SO include an ADC, and what alternatives exist if analog conversion is needed?
PIC16F627-20/SO does not include an analog-to-digital converter. It does provide an on-chip analog comparator module, which allows threshold detection by comparing an external voltage against an internal or external reference without a full ADC. If 10-bit ADC capability is required, Microchip's PIC16F628A-I/SO is a pin-compatible upgrade in the same 18-pin SOIC package that adds a 10-bit, 8-channel ADC while maintaining the same 1.75 KB flash and 20 MHz clock speed.
Which serial peripheral is built into PIC16F627-20/SO for UART communication?
PIC16F627-20/SO includes a full USART (universal synchronous/asynchronous receiver-transmitter) peripheral that operates in asynchronous UART mode supporting standard baud rates up to 19.2 kbps at 20 MHz clock frequency, or synchronous SPI-like clocked mode. The UART shares pins with RC6 and RC7 in the 16-pin I/O space, and its hardware-managed framing reduces firmware overhead compared to bit-banged serial implementations on smaller 8-pin PIC devices.
For a DIY thermostat project, how does PIC16F627-20/SO's comparator help simplify the circuit?
The on-chip analog comparator in PIC16F627-20/SO compares the voltage from a thermistor voltage-divider network against an internally generated or externally set reference voltage, generating a digital trigger output without any external op-amp or ADC. This allows a single-chip thermostat implementation with just the PIC16F627-20/SO, a 10 kΩ NTC thermistor, and a relay driver transistor, reducing BOM cost compared to designs that add a dedicated comparator IC alongside the microcontroller.
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