MIC2555 USB OTG Transceiver Features General Description Complies with USB-IF USB Standard 2.0 and MIC2555 is a USB On-The-Go (OTG) transceiver OTG Supplement Revision 1.0a designed to enable intelligent self-powered devices to communicate on a peer-to-peer basis with other USB Provides Signaling and Control Logic for SRP and and USB OTG enabled devices. Designed to perform HNP, Enabling USB Dual-Role Device Operation as a PHY for USB Serial Interface Engines (SIE), Designed for Full-Speed and Low-Speed USB MIC2555 is compatible with a wide variety of Communications stand-alone OTG SIE chips, OTG IP cores (used in 2 I C Controller Interface ASIC and COT designs), and Application Specific Offers Three Modes of Operation: Standard Products (ASSPs). -USB MIC2555 is fully compliant to USB-IFs Universal Serial -UART Bus Specification 2.0 and the On-the-Go Supplement - Audio Rev 1.0a, for low-speed and full-speed operation, and allows dual-role device (DRD) operation via an Operates with V of 1.6V to 4.5V, Assuring LOGIC 2 I C-based controller interface. The controllers robust Compatibility with Low Voltage ASICs register set permits full control over bus and interface Tri-Level ID Detection for Recognition of USB and activity for transacting Session Request Protocol non-USB Devices (SRP) and Host Negation Protocol (HNP) sequences. Supports USB/Car Kit Audio Interface Messaging between Host and Target devices can Allows Single-Ended and Differential Logic I/O utilize either USB or UART signaling methods. Integrated Charge Pump for V Supply BUS Additionally, the MIC2555 permits audio signaling on its On-Chip Pull-Up, Pull-Down Resistors Minimize D+, D, and ID lines in support of analog car kit External Component Count applications. Suspend and Power-Down Modes for Power USB communication is complemented with on-chip D+, Conservation D pull-up/pull-down resistors, an integrated charge Operates over the Full Industrial Temperature pump and low dropout voltage regulators to provide Range: 40C to +85C stable internal supply voltages and to supply V BUS power when operating as an A-device. Logic input Applications levels spanning 1.6V to 4.5V ensure compatibility with Cellular Telephones current and future generations of process technology. PDAs The MIC2555 is offered in a space-saving 4 mm x Digital Still Cameras 4 mm 24-pin QFN package. Camcorders Package Type Data Cradles CD and MP3 players MIC2555 Printers 4x4 24-Lead QFN (ML) (Top View) 24 2322 21 20 19 1 RCV 18 VTRM 2 17 SE0 VM TX VBUS 3 16 DAT VP RX D- 4 15 OE INT/ D+ 5 14 INT/ ID 6 13 GPIO 0 RX GND D 78 9101112 2019 Microchip Technology Inc. DS20006182A-page 1 VDD LGC GPIO 1 TX SCL GND A SDA CAP- ADR0 VBAT RESET/ CAP+ CAP++ GPIO 2MIC2555 Typical Application Circuit V CC System V V V DD BAT TRM Supply Voltage V BUS V V DD LOGIC BUS OE INT/ ID MIC2555 RCV RS USB USB SIE D+ Port DAT VP RX D+ Controller D SE0 VM TX D RS GND SCL SDA CAP+ ) 4.7F CAP- GND CAP++ 0.22F 220F Functional Block Diagram V TRM C- C+ C++ Voltage Doubler and V V V BAT TRM BUS 5V Regulator V DD LGC V BUS Comparator INT/ SDA ID Detector ID Serial Controller SCL Interrupt Detector RESET/ Pull-Up/Down ADR 0 Resistors GPIO 1 TX TXD MUX GPIO 0 RX RXD GPIO 2 DAT VP RX D+ Diff TX SE0 VM TX D- OE INT/ GND A SE GND D D+ Pull-Up/Down SE RCV Resistors D- Diff RX DS20006182A-page 2 2019 Microchip Technology Inc.