Pre-Soldered Header Pins | 1024K RAM (512K of Tightly Coupled Memory) | 2048K Flash (64K Reserved for Recovery & EEPROM Emulation) | 2 USB Ports (Both 480 MBit/Sec) | 3 CAN Bus (1 with CAN FD), 2 I2S Digital Audio

Teensy 4.1 (Without Pins) | Includes two (2) PSRAM Chips and one (1) Ethernet Kit for Teensy 4.1

This audio adapter lets you easily add high quality 16 bit, 44.1 kHz sample rate (CD quality) audio to your projects with a Teensy 4.0 | The audio chip connects to Teensy using 7 signals. The I2C pins SDA and SCL are used to control the chip and adjust parameters. Audio data uses I2S signals, TX (to headphones and/or line out) and RX (from line in or mic), and 3 clocks, LRCLK (44.1 kHz), BCLK (1.41 MHz) and MCLK (11.29 MHz). All 3 clocks are created by the Teensy. The SGTL5000 chip operates in "slave mode", where all its clock pins are inputs. | This Version Rev. D is for Teensy 4.0 only