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TH6503 Datasheet(PDF) 1 Page - List of Unclassifed Manufacturers |
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TH6503 Datasheet(HTML) 1 Page - List of Unclassifed Manufacturers |
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1 / 24 page  TH6503 USB Low-Speed Interface Rev. 3.5 Dec 2000 Description The TH6503 is an integrated circuit which enables the Universal Serial Bus (USB) to be connected to a microcontroller. The interface module contains all the components required to transmit data via the USB. The TH6503 has been developed for applications requiring a low speed interface to the USB. Any microcontroller can be used for control purposes. In addition to the default endpoint 0 for control transfer up to two endpoints can be supported by TH6503. The TH6503 has been developed in conformity with USB Specifications 1.1. Features ? Complient with USB Specification 1.1 ? Supports up to three programmable endpoints for interrupt and control transfer in each direction ? Data transfer at USB low speed ? Supports suspend mode ? Universal serial microcontroller interface ? Register programmable ? Programmable 1.5 MHz to 6 MHz out clock for microcontroller ? Provides power supply for the microcontroller (3.3 volts or 5 volts) ? Integrated oscillator for clock generation, supports 6 MHz quartz, ceramic resonator or external clock input ? Simple external circuitry TH6503 Sample Application Figure 1. Typical TH6503 Sample Application Figure 1 demonstrates a typical TH6503 applica- tion. The TH6503 translates the data and control signals received from the USB in a serial format which can be read by the microcontroller. The data is stored in a FIFO buffer and can be called up from a standard microcontroller via a register program- mable serial interface at any time and processed further. Data generated by peripheries is passed to the TH6503 with the same protocol and stored in a FIFO buffer until it is collected by the USB. The TH6503 translates all the data in the USB-specific format and generates the necessary control sig- nals. The TH6503 requires a minimum number of external elements and can easily be implemented in a circuitry. It provides an external clock which can be used to activate a microcontroller. Micro- controller/ Customer Application to USB Host / Hub USB Interface Serial Interface OCLK /ORST TH6503 |
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