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Brief Description
The UPD7201C is a dedicated LSI for a HUB connected to a universal serial bus (USB) system. It complies with USB specification revision 1.1 and is an upgrade of NEC's µPD72011. With the ability to put descriptors into ROM, the UPD7201C allows customization of vendor ID and product ID by using Mask ROM option.
Specifications and Features
- Compliant with Chapter 11 (HUB Specifications) of USB Specification 1.1.
- Descriptors can be put into ROM for customization of vendor ID and product ID.
- Supports 5 kinds of string descriptors (for Mask ROM code product only).
- On-chip sequencer eliminates the need for external initial setup and control.
- Four or five downstream ports can be selected using a pin function.
- Supports both bus power and self-power modes.
- Corresponds to standard descriptor products, including two kinds of standard ROM code products.
- Supports two kinds of clock input: 48 MHz oscillator input or a 4 MHz crystal resonator.
- Power control and overcurrent detection functions are on-chip.
Application Scenarios
The UPD7201C is ideal for devices or systems that require a HUB connected to a USB system. It can be used in various applications, including but not limited to:
- USB hubs for computer peripherals
- USB charging stations or power strips
- USB interfaces for audio devices
- USB hubs for gaming consoles
Comparison
Advantages:
- Compliance with USB Specification 1.1 ensures compatibility with a wide range of devices.
- Customization of vendor ID and product ID allows for branding and differentiation.
- On-chip sequencer simplifies setup and control of HUB functions.
- Multiple downstream ports provide flexibility for connecting peripherals.
- Support for both bus power and self-power modes allows for versatile power options.
- Availability of standard ROM code products offers easy implementation.
- Supports two kinds of clock input, providing flexibility for different system requirements.
- On-chip power control and overcurrent detection enhance safety and reliability.
Disadvantages:
- Limited to USB 1.1 specification, may not support newer USB technologies.
- Mask ROM customization may require additional resources and expertise.
- Power control functions may require external power control circuitry.
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Datasheet
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Shopping guide
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Popular parts of the same kind
- Datasheet: Download UPD7201C
- Chipdatas Part: CD94-UPD7201C
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
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- Last Updated: 2024/09/21 11:08 +0800
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