The HT42B533-1 is a high performance USB to SPI bridge controller with fully integrated USB and SPI interface functions, designed for applications that communicate with various types of SPI.
The device includes a USB 2.0 full speed compatible interface which is used for PC commication. The device also includes a fully integrated high speed oscillator which is used for USB and SPI clock generator.
Supports Windows XP(SP2), Vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Mac OS X as well as Android 4.0 and also later versions.
NOTE
Each purchasing unit includes 5 pieces of IC.
The product image is for showing the product appearance, the pin count shown may not match the product pin count.
Implements USB protocol composite device :
– Communication Device Class (CDC) for communications and configuration
– Human Interface Device (HID) for user configure USB VID, PID and device description strings
Integrated an internal 1.5kΩ pull-high resistor on D+ pin
Serial Interface - SPI
Supports clock rate up to 8MHz
Supports Master and Slave modes decided by AP command
Supports maximum 128 bytes transmit buffer and 128 bytes receive buffer
Supports SDI (Master mode) / SCSB (Slave mode) pin resume signal to request a remote wake-up
Supports VDDIO pin for SPI pins power supply
Support standard Windows® drivers for Virtual Com Port (VCP): Windows XP (SP2), Vista, Windows 7, Windows 8, Windows 8.1 (only an INF file is required) and Windows 10
Support Android 4.0 or later version and Mac OS X
Operating Voltage (VDD): 3.3V - 5.5V
SPI pins Voltage (VDDIO): 1.8V - VDD (Less than VDD voltage)
Fully integrated internal 12MHz oscillator with 0.25% accuracy for all USB modes which requires no external components
Integrated 256 bytes internal true EEPROM for user memory
Power down and wake-up functions to reduce power consumption
PRODUCT SERIES
RESOURCES
IC : Holtek HT42B533-1, USB to SPI Bridge IC, including datasheet, package dimension, etc.
