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MIC2555

Micrel Semiconductor
Part Number MIC2555
Manufacturer Micrel Semiconductor
Description USB - OTG Transceiver
Published Nov 17, 2008
Detailed Description MIC2555 USB – OTG Transceiver General Description MIC2555 is a USB On-The-Go (OTG) transceiver designed to enable intel...
Datasheet PDF File MIC2555 PDF File

MIC2555
MIC2555

Overview
MIC2555 USB – OTG Transceiver General Description MIC2555 is a USB On-The-Go (OTG) transceiver designed to enable intelligent self-powered devices to communicate on a peer-to-peer basis with other USB and USB OTG enabled devices.
Designed to perform as a PHY for USB Serial Interface Engines (SIE), MIC2555 is www.
DataSheet4U.
com compatible with a wide variety of stand-alone OTG SIE chips, OTG IP cores (used in ASIC and COT designs), and Application Specific Standard Products (ASSPs).
MIC2555 is fully compliant to USB-IF’s Universal Serial Bus Specification 2.
0 and the On-The-Go Supplement Rev 1.
0a, for Low speed and Full speed operation, and allows dual-role device (DRD) operation via an I2C based controller interface.
The controller’s robust register set permits full control over bus and interface activity for transacting Session Request Protocol (SRP) and Host Negation Protocol (HNP) sequences.
Messaging between Host and Target devices can utilize either USB or UART signaling methods.
Additionally, the MIC2555 permits audio signaling on its D+, D- and ID lines in support of analog car kit applications.
USB communication is complemented with on-chip D+, Dpull-up/pull-down resistors, an integrated charge pump and low dropout voltage regulators to provide stable internal supply voltages and to supply VBUS power when operating as an A-device.
Logic input levels spanning 1.
6V to 4.
5V ensure compatibility with current and future generations of process technology.
The MIC2555 is offered in a space saving 4mm x 4mm 24pin MLF™ package.
Data sheets and support documentation can be found on Micrel’s web site at www.
micrel.
com.
Features • • • • • Complies with USB-IF USB standard 2.
0 and OTG supplement Revision 1.
0a.
Provides signaling and control logic for SRP and HNP, enabling USB Dual-role device operation.
Designed for Full-speed and Low-speed USB communications.
I2C controller interface.
Offers 3 modes of operation: - USB - UART - Audio Operates with VLOGIC of 1.
6V – 4.
...


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