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Description :
The Teensy 4.1 is the newest iteration of the astoundingly popular development platform that features an ARM Cortex-M7 processor at 600MHz, with an NXP iMXRT1062 chip, four times larger flash memory than the 4.0, and two new locations to optionally add more memory. The Teensy 4.1 is the same size and shape as the Teensy 3.6 (2.4in by 0.7in) and provides greater I/O capability, including an ethernet PHY, SD card socket, and USB host port.
When running at 600 MHz, the Teensy 4.1 consumes approximately 100mA current and provides support for dynamic clock scaling. Unlike traditional microcontrollers, where changing the clock speed causes wrong baud rates and other issues, Teensy 4.1 hardware and Teensyduino’s software support for Arduino timing functions are designed to allow dynamically speed changes. Serial baud rates, audio streaming sample rates, and Arduino functions like delay() and millis(), and Teensyduino’s extensions like IntervalTimer and elapsedMillis, continue to work properly while the CPU changes speed. Teensy 4.1 also provides a power shut off feature. By connecting a pushbutton to the On/Off pin, the 3.3V power supply can be completely disabled by holding the button for five seconds and turned back on by a brief button press. If a coin cell is connected to VBAT, Teensy 4.1’s RTC also continues to keep track of date & time while the power is off. Teensy 4.1 also can also be overclocked, well beyond 600MHz!
Teensy 4.1’s Cortex-M7 processor includes a floating-point unit (FPU) that supports both 64 bit “double” and 32-bit “float”. With M4’s FPU on Teensy 3.5 & 3.6, and also Atmel SAMD51 chips, only 32-bit float is hardware accelerated. Any use of double, double functions like log(), sin(), cos() means slow software implemented math. Teensy 4.1 executes all of these with FPU hardware.
Specifications:
| Processor | ARM |
| Core | Cortex-M7 |
| Ethernet | 10 / 100 Mbit DP83825 PHY (6 pins) |
| USB Host | 5 Pins with power management |
| SDIO (4 bit data) | Micro SD Socket |
| PWM Pins | 35 |
| Analog Inputs | 18 |
| Serial Ports | 8 |
| Flash Memory | 8 Mbyte |
| QSPI Memory | 2 chips Plus Program Memory |
| Breadboard Friendly I/O | 42 |
| Bottom SMT Pad Signals | 7 |
| SD Card Signals | 6 |
| Total I/O Pins | 55 |
| Lenght(mm) | 60.96 |
| Width(mm) | 17.78 |
| Shipment Weight | 0.003 kg |
Features :
- 10 / 100 Mbit DP83825 PHY (6 pins)
- ARM Cortex-M7 at 600MHz
- 1024K RAM (512K is tightly coupled)
- CAN Bus (1 with CAN FD)
- 2 I2S Digital Audio
- 1 S/PDIF Digital Audio
- 3 SPI, all with 16 word FIFO
- 7 Bottom SMT Pad Signals
- 8 Serial ports
- 32 general-purpose DMA channels
- Cryptographic Acceleration
- Random Number Generator
- RTC for date/time
- Programmable FlexIO
- Pixel Processing Pipeline
- Peripheral cross triggering
- microSD Card Socket
- Power On/Off management
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