HT82K629A
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The HT82K629A is a USB keyboard encoder IC from Holtek, designed to simplify the development of USB keyboard applications. It integrates a USB transceiver, MCU, and necessary peripheral functions into a single chip, making it an ideal solution for designing and manufacturing USB keyboards. The HT82K629A provides a cost-effective and efficient way to implement USB keyboard functionality with minimal external components.
Key Features:
- USB 2.0 full-speed compatible
- Integrated 8-bit microcontroller
- Built-in 3.3V regulator
- Supports 104 keys standard keyboard and multimedia keys
- Low power consumption
- Built-in oscillator
- Supports firmware upgrades via USB
- SOP28 package
- Microcontroller: 8-bit MCU
- USB Interface: USB 2.0 full-speed
- Operating Voltage: 4.4V to 5.5V
- Current Consumption: Low power operation
- Keyboard Matrix: Supports up to 8x13 key matrix (104 keys)
- Multimedia Keys: Supported
- Built-in Regulator: 3.3V
- Oscillator: Built-in
- Package Type: SOP28
- Operating Temperature Range: -40°C to +85°C
- USB keyboards
- Keyboard with multimedia keys
- Custom keyboard designs
- Embedded control systems requiring USB HID functionality
Technical Specifications:
- Logic Family: CMOS
- Number of Channels: 3
- Switch Configuration: Single-Pole Double-Throw (SPDT)
- Supply Voltage Range: 3V to 15V
- “ON” Resistance (R_ON): 125Ω typical at V_DD = 10V
- “OFF” Leakage Current (I_OFF): ±100pA typical at V_DD = 10V
- Control Input Voltage (V_IH): 0.7 V_DD min, 0.3 V_DD max
- Maximum Operating Frequency: 40 MHz at V_DD = 10V
Applications:
- Signal routing and switching
- Analog and digital multiplexing
- Audio and video signal processing
- Data acquisition systems
- Test equipment