HT42B564-1 Datasheet, PDF (1/13 Pages) Holtek Semiconductor Inc – USB (HID) to UART Bridge IC

HT42B564-x
USB (HID) to UART Bridge IC
Features
• Operating Voltage (V_DD): 3.3V~5.5V
• UART pin Voltage (V_DDIO): 1.8V~V_DD (Less than
V_DD voltage)
• Power down and wake-up functions to reduce
power consumption
• Fully integrated 12MHz oscillator with 0.25%
accuracy for all USB modes which requires no
external components
• USB interface
♦♦ _{USB 2.0 Full Speed compatible}
♦♦ _{Implements USB Human Interface Device (HID)}
class
♦♦ _{Internal 1.5kΩ pull-high resistor on D+ pin}
• Fully-duplex Universal Asynchronous Receiver and
Transmitter Interface – UART
♦♦ _{Supports Baud Rate up to 115200bps}
♦♦ _{Supports maximum 32 bytes transmit buffer and 32}
bytes receive buffer
♦♦ _{UART Data formats supported:}
–– Data bits: 8
–– Stop bits: 1 and 2
–– Parity: odd, even, no parity
♦♦ _{Supports RX pin resume signal to request a remote}
wake-up
♦♦ _{Supports VDDIO pin for UART pins power supply}
• Supports standard Windows^® drivers for Windows
XP, Vista, Win 7, Win 8/8.1, Win10
• Package types: 10-pin SOP
General Description
The HT42B564-x device is a high performance USB
to UART bridge controller with fully integrated
USB and UART interface functions, designed for
applications that communicate with various types
of UART. The device includes a USB 2.0 full
speed compatible interface which is used for PC
communication. The device also includes a fully
integrated high speed oscillator which is used as clock
source for the USB and UART baud rate generator.
The baud rate generator can support up to 115200bps
of baud rate for the UART interface.
USB Bridge IC Naming Rules
HT42B 5 6 4 - x
Product Family
HT42B = Holtek Bridge IC
Bridge Series of Host
5 = USB
Version
1 = First Version
USB Class type
3 = CDC Class
6 = HID Class
Bridge Series of Device
2 = I²C
3 = SPI
4 = UART
Rev. 1.00
1
December 21, 2016