Part Number: PIC16F690T-I/ML

Manufacturer: Microchip Technology

Description: IC MCU 8BIT 7KB FLASH 20QFN

Shipped from: Shenzhen/HK Warehouse

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Technical Specifications of PIC16F690T-I/ML

Datasheet  PIC16F690T-I/ML datasheet
Category Integrated Circuits (ICs)
Family Embedded – Microcontrollers
Manufacturer Microchip Technology
Series PIC? 16F
Packaging Tape & Reel (TR)
Part Status Active
Core Processor PIC
Core Size 8-Bit
Speed 20MHz
Connectivity I2C, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O 18
Program Memory Size 7KB (4K x 14)
Program Memory Type FLASH
EEPROM Size 256 x 8
RAM Size 256 x 8
Voltage – Supply (Vcc/Vdd) 2 V ~ 5.5 V
Data Converters A/D 12x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Package / Case 20-VFQFN Exposed Pad
Supplier Device Package 20-QFN (4×4)


Microcontrollers are the unseen orchestrators that power the devices and systems that define our modern world. They power everything from smart gadgets to industrial automation. The PIC16F690T-I/ML, a powerful 8-bit member of Microchip Technology’s PIC family, will be introduced to you in this article. This little yet powerful device runs at up to 20MHz and has 7KB of Flash memory, making it a versatile solution for a variety of applications. Join us as we unearth the potential of the PIC16F690T-I/ML, whether you’re a novice eager to explore the world of microcontrollers or an experienced engineer looking for a dependable and efficient solution.

High-Performance RISC CPU

The PIC16F690T-I/ML microcontroller is driven by a high-performance RISC (Reduced Instruction Set Computer) CPU that includes the following important features:

Instruction Set Efficiency

  • With only 35 commands to learn, learning the microcontroller’s instruction set is simplified.
  • Except for branch instructions, the bulk of instructions execute in a single cycle, ensuring quick and efficient program execution.

Operating Speed

  • This microcontroller can work at a variety of clock frequencies, up to 20 MHz, giving you the flexibility to match the needs of your application.
  • It has a fast instruction cycle of only 200 nanoseconds, allowing for quick job processing.

Interrupt Capability

  • The PIC16F690T-I/ML includes interrupt functionality, which allows it to respond quickly to external events or specified conditions. This is especially important for real-time and event-driven applications.

Hardware Stack

  • This microcontroller quickly manages subroutine and interrupt handling thanks to an 8-level deep hardware stack. It ensures that program execution can be effectively arranged, particularly in complicated applications.

Versatile Addressing Modes

  • Direct, indirect, and relative addressing modes are available on the microcontroller. These modes provide flexibility in accessing data and memory locations, catering to a variety of programming requirements.
  • These characteristics combine to make the PIC16F690T-I/ML a powerful and efficient microcontroller suitable for a wide range of applications. Its concise instruction set, fast clock speed, interrupt support, hardware stack, and flexible addressing modes make it appealing to both rookie and expert developers looking for a capable embedded control solution.

Special Microcontroller Features

The PIC16F690T-I/ML microcontroller has a number of unique features that improve its capabilities and make it a versatile solution for a wide range of applications:

Precision Internal Oscillator

  • The clock is factory calibrated to an astonishing 1% accuracy, assuring consistent clock timing.
  • It has a software-selectable frequency range ranging from 8 MHz to 32 kHz.
  • Allows for accurate timing modifications through software tuning.
  • It has a Two-Speed Start-up option for quick initialization.
  • Crystal fail detection is included, which is vital for critical applications.
  • Supports switching between clock modes during operation to save electricity.

Power-Saving Sleep Mode

  • The microcontroller includes a power-saving sleep mode, ideal for reducing power consumption during idle periods.

Wide Operating Voltage Range

  • Operates seamlessly within a voltage range of 2.0V to 5.5V, providing flexibility for various power supply configurations.

Industrial and Extended Temperature Range

  • Suitable for demanding environments, thanks to its industrial and extended temperature range support.

Power-On Reset (POR)

  • Ensures a reliable and controlled start-up sequence when the microcontroller is powered on.

Power-Up Timer and Oscillator Start-up Timer

  • These timers assist in precise and stable system initialization during power-up.

Brown-Out Reset with Software Control Option:

  • Provides protection against voltage drops and includes a software control option for flexibility.

Enhanced Low-Current Watchdog Timer (WDT) with On-Chip Oscillator:

  • Features a software-selectable watchdog timer with a nominal 268 seconds timeout and full prescaler support.
  • Enables software control of the watchdog timer.

Multiplexed Master Clear/Input Pin:

  • This pin can serve as a multipurpose input or a master clear/reset function.

Programmable Code Protection:

  • Offers the ability to protect the code stored in the microcontroller’s memory from unauthorized access.

High-Endurance Flash/EEPROM Cell:

  • Flash memory supports up to 100,000 write cycles, ensuring long-term program storage.
  • EEPROM memory offers an impressive 1,000,000 write cycle endurance.
  • Flash and EEPROM data retention exceeds 40 years.

Enhanced USART Module:

  • Supports various communication standards, including RS-485, RS-232, and LIN 2.0.
  • Includes features like auto-baud detection and auto-wake-up on the start bit, enhancing communication capabilities.

These unique characteristics make the PIC16F690T-I/ML microcontroller an appealing solution for applications requiring precision, power efficiency, dependability, and communication adaptability. These characteristics provide the tools required for robust and efficient performance whether you’re building for industrial automation, consumer electronics, or other sectors.

PIC16F690T-I/ML Low-Power Features

The low-power capabilities of the PIC16F690T-I/ML microcontroller make it an energy-efficient alternative for battery-powered and power-sensitive applications:

Standby Current

  • When powered at 2.0V, it consumes only 50 nA of current in standby mode, making it excellent for scenarios requiring ultra-low power consumption.

Operating Current

  • The usual current consumption when working at 32 kHz and powered at 2.0V is about 11 A, making it suited for circumstances where long battery life is crucial.
  • Even at higher clock frequencies, such as 4 MHz with a 2.0V supply, the usual current demand remains low at 220 A, allowing for efficient power management.

Watchdog Timer Current:

  • The watchdog timer on the microcontroller is designed to use as little power as possible. The usual current for the watchdog timer at 2.0V is less than 1 A, ensuring that power consumption is kept to a minimum even while the timer is operating.

Because of these low-power characteristics, the PIC16F690T-I/ML microcontroller is an ideal choice for applications requiring high energy efficiency, such as battery-powered devices, IoT (Internet of Things) sensors, and other power-sensitive systems. They let you to extend the operational life of your equipment while ensuring consistent performance.


  • Embedded systems.
  • IoT devices.
  • Sensor interfacing.
  • Home automation.
  • Educational projects.


Microchip Technology’s PIC16F690T-I/ML microcontroller is a strong and versatile solution for a wide range of applications. Its precision, low-power efficiency, and inexpensive cost make it an excellent choice for both novice and professional engineers. This microcontroller opens up a world of possibilities because it is offered at a moderate cost from ICRFQ, a reputable electronic component reseller in China. Accept its potential and use it to bring your electronic projects to life, helping to shape the future of technology with innovation and dependability.

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