8 MB PSRAM memory chip, designed for mounting on Teensy 4.1 boards. It enables the expansion of the memory of the microcontroller. PJRC IC-PSRAM-8MB-SOIC8
List of products by brand PJRC
PJRC – Manufacturer of Microcontrollers and the Teensy Platform
PJRC is an American manufacturer specializing in high-performance microcontrollers and expansion modules, best known for developing the Teensy series. These products are valued for their compact size, high processing power, and broad compatibility, making them ideal for applications in automation, IoT, robotics, audio DSP, and embedded systems. With full support for Arduino and the Arduino IDE environment, PJRC microcontrollers are a popular choice among both professionals and electronics enthusiasts.
There are 14 products.
Ethernet module designed for Teensy 4.1. The board has an Ethernet connector and a 6-pin connector for connecting to Teensy. PJRC ETHERNET-KIT
Development board with the NXP iMXRT1062 microcontroller based on the ARM Cortex-M7 core. It can be programmed using any environment and C language or using the Arduino IDE. PJRC TEENSY40_PINS
A development board with the NXP iMXRT1062 microcontroller based on the ARM Cortex-M7 core. It is equipped with a DP83825 PHY Ethernet chip. It can be programmed using any environment and C language or using the Arduino IDE. PJRC TEENSY41_PINS
Audio module designed for Teensy 3.2, 3.5, 3.6 and 4.0. It uses the PT8211 16-bit digital to analog converter (DAC) chip. PJRC PT8211-AUDIO-KIT
A small module based on a 32-bit microcontroller with an ARM Cortex M7 core. It has led out pads with microSD card interface and USB Host. Version with access to a secure software update. PJRC TEENSY40-LOCK
A small module, matching the breadboard, containing a 32-bit microcontroller with ARM Cortex M7 core. PJRC TEENSY40
A small module matching the contact plate based on a 32-bit microcontroller with ARM Cortex M7 core. Has a microSD slot. PJRC TEENSY41
A small module based on a 32-bit microcontroller with an ARM Cortex M7 core. It has a microSD slot and an Ethernet chip. Version with access to secure software updates. PJRC TEENSY41-LOCK
Development board with NXP iMXRT1062 ARM Cortex-M7 microcontroller. Equipped with a microSD slot. Version without Ethernet communication. PJRC TEENSY41-NE-PINS
Adapter for WS2811 LED strips designed for Teensy 3.2, 3.5, 3.6 and 4.1. It uses the 74HCT245 chip and RJ45 connectors for communication with RGB LED strips. Teensy 3.2-4.1 PJRC OCTO28-ADAPTOR
Adapter with micro SD card slot. It is equipped with connectors compatible with Teensy LC, 3.0, 3.1, 3.2, 3.5 and 3.6 boards and WIZ820io or WIZ850io Ethernet modules. WIZ820-SD-ADAPTOR
Teensy Prop Shield is meant for making light and sound effects on small, handheld props and wearable costumes. This shield features a 2W audio amp, high-speed 5V buffers for driving APA102 LEDs, and an 8MB flash memory. PJRC PROP-SHIELD-LC
Development board with NXP iMXRT1062 ARM Cortex-M7 microcontroller. Equipped with a microSD slot. Version without Ethernet communication. PJRC TEENSY41-NE
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Teensy – High-Performance and Compact Microcontrollers
The Teensy series, developed by PJRC, features modern ARM Cortex-M microcontrollers known for their low power consumption, high performance, and extensive communication interfaces. Models like the Teensy 4.1 offer expanded PSRAM memory, USB host support, and fast data processing, making them ideal for control systems, automation, and digital signal processing (DSP). Teensy microcontrollers support standard communication protocols such as UART, SPI, I2C, and GPIO, ensuring versatility across various electronic projects.
Advanced Audio Processing and DSP Capabilities
One of the key applications of the Teensy platform is digital audio processing (DSP). PJRC provides dedicated audio modules and software libraries for sound synthesis, frequency analysis, and signal filtering. With built-in support for I2S interfaces and audio amplifiers, Teensy is widely used in music projects, sound systems, and electronic instruments.
Expansion Modules and Peripheral Interfaces
PJRC offers a variety of expansion modules that enhance the capabilities of Teensy microcontrollers. Available options include Ethernet modules, microSD card interfaces, Wi-Fi and Bluetooth communication modules, and sensor interfaces. With compatibility with the Arduino IDE and the Teensyduino environment, users can quickly develop and test their applications on the Teensy platform.
Developer Support and the Teensyduino Ecosystem
PJRC provides comprehensive support for developers through Teensyduino, an extension for the Arduino IDE. With an intuitive interface, extensive libraries, and support for communication protocols, programming Teensy microcontrollers is accessible even for beginners.
PJRC – High Performance in a Compact Format
With modern ARM Cortex-M processors, a broad range of interfaces, and advanced audio processing support, PJRC and its Teensy platform offer one of the most powerful solutions for embedded systems and digital electronics. The company continuously innovates, delivering compact and high-performance solutions for engineers, developers, and technology enthusiasts.