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MIC2555 Dataheets PDF



Part Number MIC2555
Manufacturers Micrel Semiconductor
Logo Micrel Semiconductor
Description USB - OTG Transceiver
Datasheet MIC2555 DatasheetMIC2555 Datasheet (PDF)

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 .

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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 – 4.5V, assuring compatibility with low voltage ASICs. Tri-level ID detection for recognition of USB and non-USB devices. Supports USB /Car Kit audio interface. Allows Single-ended and Differential Logic I/O. Integrated charge pump for VBUS supply. On-chip pull-up, pull-down resistors minimize external component count. Suspend and Power-down modes for power conservation. Operates over the full Industrial Temperature range: –40°C to +85°C. Cellular Telephones PDAs Digital Still Cameras Camcorders Data Cradles CD and MP3 players Printers • • • • • • • • Applications • • • • • • • MicroLead Frame and MLF are trademarks of Amkor Technologies Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com June 2005 M9999-060805 (408) 955-1690 Micrel, Inc. MIC2555 Ordering Information Part Number Standard Pb-Free Address Junction Temp. Range Package MIC2555BML-0 MIC2555BML-1 MIC2555YML-0 MIC2555YML-1 0x 1x –40°C to +85°C –40°C to +85°C 24-pin MLF™ 24-pin MLF™ Typical Application www.DataSheet4U.com VCC System Supply Voltage VDD VBAT VDD_LOGIC OE_INT/ RCV MIC2555 DAT_VP_RX SE0_VM_TX SCL SDA CAP+ 0.22µF CAP- VTRM VBUS ID RS D+ D– RS VBUS USB SIE Controller D+ D– GND USB Port GND CAP++ 10µF 220µF 4.7µF MIC2555 Typical Application Circuit Pin Configuration VDD_LGC GND_A CAPVBAT CAP+ CAP++ RCV SE0_VM_TX DAT_VP_RX OE_INT/ INT/ GPIO_0_RX GPIO_1_TX SCL SDA ADR0 RESET/ GPIO_2 VTRM VBUS DD+ ID GND_D 4mm × 4mm 24-pin MLF (ML) June 2005 2 M9999-060805 (408) 955-1690 Micrel, Inc. MIC2555 Pin Description Pin Number 1 2 Type O I/O Pin Name RCV SE0_VM_TX Pin Description Output from differential receiver. = SE0 in USB DAT-SE0 mode = VM in VP-VM mode. = UART Transmit output when in UART Mode See figures 1 and 2 on page 4 = DAT in USB DAT-SE0 mode. = VP in VP-VM mode = UART Receive input when in UART mode See figures 1 and 2 on page 4 A Multi-mode pin controlling various functions in conjunction with control register bits. A logic LOW on this pin gives the following results: = OE (Output Enable): Enables D+, D- as USB outputs. = INT/ (Interrupt): Active LOW output when register bits ‘suspend’ and ‘oe_int_en’ both = 1. Interrupt (bar). Open Drain Active LOW output. May be wire-ORed with other interrupt signals. = General purpose I/O. Open drain output. = Alternate UART Receive input. See figures 1 and 2 on page 4 = General purpose I/O. Open drain output. = Alternate UART Transmit output. See figures 1 and 2 on page 4 I2C Clock I2C Data 2 Sets Address bit A0 of I C controller. This pin is a digital input and must not be left floating. System reset. Active LOW. General purpose I/O. Open drain output. System Digital ground. Identification input. Monitors the ID pin of the USB connector and indicates both the presence of a device and type (USB or not USB). = USB D+ when in USB mode. = UART Receive in UART mode. = Right Speaker audio output in stereo mode. = Microphone signal fr.


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