PIC16F874-20/PQ Microchip Integrated Circuit (Quad Flat Packages) In Stock
The PIC16F874-20/PQ is an 8-bit PIC microcontroller with 4 KB Flash, 20 MHz clock, 8-channel 10-bit ADC, and MQFP-44 package. Features USART, SPI, I2C, and 33 I/O pins for versatile embedded designs.
- Manufacturer
- Microchip
- Package
- Quad Flat Packages
- Pin Count
- 44
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- PIC16F874-20/PQ Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $6.7080(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 20 MHz with 4 KB Flash program memory and 192 bytes RAM
- 8-channel 10-bit analog-to-digital converter (ADC) built in for direct sensor interfacing
- Multiple communication interfaces: USART, SPI (SSP), and I2C in a compact MQFP-44 package with 33 I/O pins
Applications
The PIC16F874-20/PQ is well suited for industrial sensor acquisition systems, motor-control panels, and HVAC controllers where a 20 MHz 8-bit MCU with a built-in 10-bit ADC and dual serial interfaces keeps BOM cost low. It is also used in home-automation nodes, alarm systems, and legacy embedded designs that need MQFP-44 footprint compatibility with earlier PIC16F87x firmware.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | MQFP-44 |
| Date Of Intro | 1998-12-01 |
| YTEOL | 3 |
| Has ADC | YES |
| 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-PQFP-G44 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of External Interrupts | 1 |
| Number of I/O Lines | 33 |
| 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 | QFP44,.5SQ,20 |
| Package Shape | SQUARE |
| Package Style | FLATPACK |
| Qualification Status | Not Qualified |
| RAM (bytes) | 192 |
| RAM (words) | 192 |
| ROM (words) | 4096 |
| ROM Programmability | FLASH |
| Speed | 20MHz |
| Supply Current-Max | 20mA |
| 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 | 0.8mm |
| Terminal Position | QUAD |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Quad Flat Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Philippines, Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PIC16F874-20/PQ:
Frequently Asked Questions
What is the maximum clock speed and Flash capacity of the PIC16F874-20/PQ?
The PIC16F874-20/PQ operates at up to 20 MHz and provides 4 KB (4096 words) of Flash program memory along with 192 bytes of SRAM data memory, making it suitable for mid-complexity embedded firmware running real-time control loops.
How many ADC channels does the PIC16F874-20/PQ provide, and what is the resolution?
It integrates 8 analog input channels with a 10-bit ADC, delivering up to 1024 discrete measurement levels per channel. This allows direct connection to sensors such as thermistors or pressure transducers without an external ADC, reducing system component count.
Which serial communication interfaces are available on the PIC16F874-20/PQ for connecting peripherals?
The device includes a full-duplex USART for RS-232 or RS-485 links, plus a synchronous serial port (SSP) that supports both SPI and I2C protocols. With 33 general-purpose I/O pins across the 44-pin MQFP package, designers can interface LCD modules, EEPROMs, and multiple sensors concurrently.
In what scenarios would a designer choose the PIC16F874-20/PQ over a lower-pin-count PIC16 device?
When a design needs more than 20 I/O pins, 8 ADC channels, or both SPI and I2C on the same board, the PIC16F874-20/PQ in MQFP-44 package is a natural fit. Applications such as 3-phase motor drives requiring 6 PWM comparator outputs and simultaneous current sensing on 3 channels benefit from its expanded peripheral set compared to 28-pin alternatives.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $9.1200 | $9.12 |
| 6+ | $7.7400 | $46.44 |
| 33+ | $6.7080 | $221.36 |
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