#pic microcontroller 8 bit

[rdlof2llins]

https://www.futureelectronics.com/p/semiconductors--microcontrollers--8-bit/pic16f872-i-so-microchip-8119406

Low power microcontroller, embedded microcontroller, embedded microcontroller

PIC16F Series 3.5 kB Flash 128 B RAM 20 MHz 8-Bit Microcontroller - SOIC-28

[dgls2nett]

https://www.futureelectronics.com/p/semiconductors--microcontrollers--8-bit/pic18f4520-i-pt-microchip-3154588

low power 8 bit microcontrollers, lcd microcontrollers, Microcontroller software

PIC18F Series 32 KB Flash 1.5 kB RAM 40 MHz 8-Bit Microcontroller - TQFP-44

[scott2yton]

https://www.futureelectronics.com/p/semiconductors--microcontrollers--8-bit/pic18f4520-i-pt-microchip-5300009

Wireless USB, Low power microcontroller, development board, Pic microcontrolle

PIC18F Series 32 KB Flash 1.5 kB RAM 40 MHz 8-Bit Microcontroller - TQFP-44

[dvid2leds]

https://www.futureelectronics.com/p/semiconductors--microcontrollers--8-bit/pic12f629t-i-sn-microchip-8748717

What is a microcontroller, programming microcontroller, lcd microcontrollers

PIC12F Series 1.75 kB Flash 64 B SRAM SMT 8-Bit Microcontroller - SOIC-8

[athur2llmm]

https://www.futureelectronics.com/p/semiconductors--microcontrollers--8-bit/ez80f91az050ek-zilog-8131964

Embedded microcontroller, microcontroller board, lcd microcontrollers

eZ80F91 Series 256 kB Flash 8 kB RAM 50 MHz 8-Bit Microcontroller - LQFP-144

[grhm2illo]

https://www.futureelectronics.com/p/semiconductors--microcontrollers--8-bit/pic16lf877a-i-ml-microchip-5373501

Embedded microcontrollers, microcontroller programming, USB microcontroller

PIC16 Series 14 kB Flash 368 B RAM 20 MHz 8-Bit Microcontroller - QFN-44

[shrm2lph]

https://www.futureelectronics.com/p/semiconductors--microcontrollers--8-bit/atmega128l-8au-microchip-2038197

lcd microcontrollers, Low power microcontroller, microcontroller software

ATmega Series 128 KB Flash 4 KB SRAM 8 MHz 8-Bit Microcontroller - TQFP-64

[tmslsburr]

https://www.futureelectronics.com/p/semiconductors--microcontrollers--8-bit/pic16c73b-04-sp-microchip-1274299

Microcontrollers, 8 bit, PIC16C73B-04/SP, Microchip

PIC16 Series 192 B RAM 4 K x 14 Bit EPROM 8-Bit CMOS Microcontroller - SPDIP-28

[egns2fern]

https://www.futureelectronics.com/p/semiconductors--microcontrollers--8-bit/pic16c73b-20i-sp-microchip-1279256

Programmable microcontrollers, embedded microcontroller, Pic microcontrollers

PIC16 Series 192 B RAM 4 K x 14 Bit EPROM 8-Bit CMOS Microcontroller - SPDIP-28

[vict2leelso]

https://www.futureelectronics.com/p/semiconductors--microcontrollers--8-bit/pic16c73b-20i-so-microchip-8276131

8 bit Embedded microcontrollers, 8 bit Wireless microcontrollers, programming

PIC16 Series 192 B RAM 4 K x 14 Bit EPROM 8-Bit CMOS Microcontroller - SPDIP-28

[wliw2rork]

https://www.futureelectronics.com/p/semiconductors--microcontrollers--8-bit/pic16c73b-04-sp-microchip-1274299

Microcontroller 8 bit controller, lcd microcontrollers, Pic microcontrollers

PIC16 Series 192 B RAM 4 K x 14 Bit EPROM 8-Bit CMOS Microcontroller - SPDIP-28

[nicla2llard]

Pic microcontroller, Programmable lcd microcontrollers, embedded microcontroller

PIC16F Series 1.75 kB Flash 224 B RAM 20 MHz 8-Bit Microcontroller - SOIC-18

[cmxelcs]

Introduction of 8Bit PIC MCU PIC16F886T-E/SO, Electronic Components Distributor Introducing the PIC16F886T-E/SO, a high-performance microcontroller that provides the perfect solution for a wide range of embedded applications. With its robust architecture and versatile features, this microcontroller enables developers to create efficient, high-quality designs with ease. MOQ of 8Bit PIC MCU PIC16F886T-E/SO As seen online,MOQ is 100 units.More quantity,inquire us to talk the price support. The PIC16F886T-E/SO is equipped with an 8-bit architecture and a variety of integrated peripherals. It offers up to 32 I/O pins, a 10-bit ADC, and a PWM module, making it ideal for applications ranging from automation to consumer electronics. The microcontroller operates at a maximum CPU speed of 20 MHz and supports multiple operating modes which enhance its efficiency. Applications and Use Cases of the MCU Whether you're designing a home automation system, developing an electronic device, or creating a prototype, the PIC16F886T-E is your go-to choice. Its compatibility with various peripherals and support for reliable communication protocols, such as I2C and SPI, allows seamless integration into your projects. You'll find it widely used in automotive applications, medical devices, and industrial control systems due to its reliability and versatility. Overall, the microcontroller stands out for being user-friendly and well-documented, ensuring a smooth development process. Its combination of performance and features makes it an excellent choice for hobbyists and professionals alike. Experience innovation in embedded systems with the PIC16F886T-E and take your projects to the next level. If you interested with more other integrated circuits,view more to our company business. Read the full article

[grhm2illo]

https://www.futureelectronics.com/p/semiconductors--microcontrollers--8-bit/pic16lf877a-i-ml-microchip-5373501

Embedded microcontrollers, microcontroller programming, USB microcontroller

PIC16 Series 14 kB Flash 368 B RAM 20 MHz 8-Bit Microcontroller - QFN-44

[unikeyic]

Notes on Self-Studying STM32F10x Microcontroller Interrupts

Having previously used PIC and 8051 microcontrollers, I had never encountered the STM32 series of chips. Recently, I began delving into the STM32F10xseries.

During my studies, I found the STM32's interrupt system to be quite distinctive compared to those of the PIC and 8051, particularly in its response mechanism. Despite going through manuals and video tutorials multiple times, I still felt somewhat confused. However, as I began coding to configure the chip, I gradually started to understand it better. This led me to document my experiences as summary notes. I acknowledge that there may be some inaccuracies or gaps in my descriptions, and I encourage feedback and corrections.

The STM32 is built on the ARM Cortex-M3 core, which supports up to 256 interrupt sources. Out of these, 16 are core-specific, while up to 240 can be attributed to external devices. Each interrupt source has an independent priority control register, which is an 8-bit register. In theory, this means each interrupt source within a complete Cortex-M3 core could have 256 levels of priority. However, this vast architecture pertains to the entire Cortex-M3 core.

In the case of STM32 chips, not all possible interrupt sources or priority levels are used. Specifically, our STM32 model has the core's 16 interrupt sources and 68 additional sources from external devices. Since the STM32 doesn’t exploit all the interrupt sources available with the Cortex-M3, it also doesn't offer the full spectrum of 256 priority levels for configuration. Instead, the priority setting registers for each interrupt source in the STM32 use only the upper 4 bits of the 8-bit register. Details can be seen in the diagram below:↓

In STM32 microcontrollers, interrupt priorities are set using a priority register where each interrupt source has 4 bits allocated for this purpose. These 4 bits are divided into two groups: the "preemptive priority" (higher bits) and the "subpriority" (lower bits). The preemptive priority determines if an interrupt can interrupt currently executing interrupts, while the subpriority resolves conflicts between interrupts with the same preemptive priority.

The configuration of these priorities is managed by the Application Interrupt and Reset Control Register (AIRCR), specifically using bits 10, 9, and 8, known as the "PRIGROUP" bits. These bits define how the 4-bit priority is split between preemptive priority and subpriority, establishing different grouping schemes. For example, setting PRIGROUP to 101 configures the system to use 2 bits for both preemptive and subpriority levels, allowing values from 0 to 3 for each.

According to Cortex-M3 specifications, regardless of how many bits are used for priorities, the lower bits of the priority register are truncated when defining priorities. This means that when configuring priority groupings, at least one bit must be reserved for subpriority, ensuring that even if all bits are dedicated to subpriority, no nesting will occur, only sequential processing. In the STM32 priority register, typically the upper 4 bits define the priority, but during grouping, the lower 4 bits may influence the grouping scheme, such as in Group 4 where all 4 bits are assigned to preemption priority, leaving none for subpriority.

The difference between "preemption priority" and "subpriority" can be understood as follows: If multiple interrupts happen at the same time, the CPU prioritizes based on preemption priority. New interrupts with a higher preemption level can preempt ongoing ones, leading to interrupt nesting. However, if interrupts have the same preemption priority, they are processed sequentially according to their subpriority, with the lowest subpriority being handled last. If both preemption and subpriority are identical, STM32 processes the interrupt with the lower vector address first.

Interrupts in STM32 can also be in a "pending" state, which occurs when an interrupt request is made but cannot be executed immediately due to an active interrupt with equal or higher preemption priority. The pending state can be manually set using the ISPR[2] (Interrupt Set-Pending Register) and cleared using the ICPR[2] (Interrupt Clear-Pending Register). When conditions allow, a pending interrupt will be processed based on its configured priority.

TAG: STM32F10x; Electronic Components; Register

[hte-bd]

PIC16F73 Microcontroller: High-Performance 8-Bit MCU

PIC16F73 Microcontroller: High-Performance 8-Bit MCU Table of Contents Introduction Features of PIC16F73 Microcontroller Applications Technical Specifications Why Choose PIC16F73? External Resources Introduction The PIC16F73 Microcontroller: High-Performance 8-Bit MCU is an industry-leading microcontroller designed for optimal performance and versatility. With its advanced PIC® architecture and…