S1R72U06 데이터 시트보기 (PDF) - Seiko Epson Corp

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S1R72U06

Ease of use and easy connections (serial connections)

Seiko Epson Corp 

2. Features

2. Features

„ Ease of use and easy connections (serial connections)

Uses simplified commands to control USB functions

The main CPU controls this LSI’s USB functions using simplified commands. No USB driver needs to

be installed.

The UART (2-wire asynchronous) or SPI (clock synchronous) serial interface permits the easy

connection of various CPU types.

„ Built-in regulator

USB regulator

Core voltage regulator

The S1R72U06 has two regulators: one (input range: 3.3 to 5.0 V) to generate 3.3 V for the USB and

another (input voltage: 3.3 to 5.0 V) to generate the internal core voltage of 1.8 V. This allows the

S1R72U06 to operate from a single power source as long as the supplied voltage is at least 3.3 V.

„ Built-in VBUS supply function

No external VBUS power SW required

The S1R72U06 features a built-in VBUS supply function for USB host operations, eliminating the need

for the external VBUS power SW previously required by the USB host controller. The S1R72U06

features an interface that controls the external VBUS power SW if the built-in VBUS supply function

cannot supply adequate current. If necessary, connect an external VBUS power SW to ensure sufficient

current capacity for bus-powered devices.

„ Product (system) development support function

History display

The S1R72U06 uses a serial interface (asynchronous type) to display the history of internal LSI

processing, etc. This function provides useful information during product (system) development.

2

Seiko Epson Corporation

S1R72U06 Data Sheet

(Rev. 1.10)

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