battery is recommended, though other 3V coin cells may also be used. On / Off Pin and Power Control A special low power state which turns off the 3.3V power can be Teensy-LC will be ideal for inexpensive "Internet Of Things" projects when paired with a ESP8266 Wifi module, which requires a fast hardware serial or SPI port. If you need a Teensy with similar form factor and I/O that is 5V tolerant, the Teensy 3.2 may be a good choice to consider. Power – One Power Source at a Time!

access this memory. AVR libc functions may also be used. RTC RAM 32 bytes of memory are located within the RTC. If a coin VIN) pin– External power of 3.7V to 5.5V can be applied to the 5V pin which also powers the on-board 3.3V regulator to power the rest of the module.Beware that there are clones in the same form factor marketed as "Teensy", but which may or may not work in the same way - maybe because it was based on a Teensy 1.0 and not 2.0. If the software stops resetting the timer for too long, Teensy reboots. Special Timers These extra timers allow delays, analog sample rate timing, carrier modulation,

Teensy-LC has the same powerful USB hardware as Teensy 3.1. All USB data transfer is done directly to memory with minimal CPU overhead. Teensy-LC delivers an impressive collection of capabilities to make modern electronic projects simpler. It features an ARM Cortex-M0+ processor at 48 MHz, 62K Flash, 8K RAM, 12 bit analog input & output, hardware Serial, SPI & I2C, USB, and a total of 27 I/O pins. Audio Shield converts I2S digital audio to analog stereo input & output. I2S / TDM Most commonly used with the audio shield, Differential & Programming Gain Amplifiers Pins A10 & A11 and A12 & A13 have a differential amplifiers. Analog Comparators These comparators allow an analog signal to be converted toon the bottom side, on a small pad labeled "R". Bootloader Chip Teensy 3.2's bootloader is stored in a dedicated chip. All The Teensy LC (Low Cost) is a breadboard-friendly development board with a bootloader and micro USB. It is a 32-bit microcontroller board that provides you with an uncomplicated option for getting started with the Teensy line of products. Analog signals are critically important to many projects. Teensy-LC has 13 pins than can function as analog inputs. The effective analog resolution is 12 bits. All digital inputs need to adhere to the 3.3V limitation to avoid damage. A logic level converter should be used if digital inputs are interfacing to 5V peripherals. In some cases, a 10k series resistor can be used to current limit a 5V input to safe levels without using a logic level converter. The caveat is that the total injected current using this technique cannot exceed the current consumption of the entire chip and therefore should not be used when operating the processor in one of its low power modes of operation. of the world's semiconductor fabs are focusing on 45 nm or smaller, leaving limited supply for older chips. We