(MAX13342E / MAX13345E) 3-Wire Interface Full Speed USB Transceivers - Maxim Integrated Products
Description
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19-0621; Rev 0; 10/06
3-Wire Interface Full-Speed USB Transceivers With/Without Internal Series Resistors
General Description
The MAX13342E/MAX13345E USB-compliant transceivers are designed to minimize the area and external components required to interface low-voltage ASICs to USB.
The devices comply with USB 2.
0 specification for full-speed-only (12Mbps) operation.
The transceivers include an internal 3.
3V regulator, an internal 1.
5kΩ D+ pullup resistor, and built-in ±15kV ESD protection circuitry to protect the USB I/0 ports (D+,D-).
The MAX13345E also has internal series resistors, allowing it to be wired directly to a USB connector.
These devices operate with logic-supply voltages as low as +2.
3V, ensuring compatibility with low-voltage ASICs.
A low-power mode reduces current consumption to less than 45µA.
An enumerate function controls the D+ pullup resistor, allowing devices to logically disconnect while remaining plugged in.
The MAX13342E has controlled output impedance of 2Ω (max) on D+/D-, allowing the use of external switches to multiplex two different USB devices onto a single USB connector.
The MAX13345E has 43.
5Ω (max) internal resistors on D+/D- for direct connection to the USB connector.
The MAX13342E/MAX13345E are equipped with DAT and SE0 interface signals.
These transceivers provide a USB detection function that monitors the presence of USB VBUS and signals the event.
These devices operate over the extended -40°C to +85°C temperature range and are available in UCSP™ 2.
0mm x 1.
5mm and 14-pin TDFN (3mm x 3mm) packages.
UCSP™ is a trademark of Maxim Integrated Products, Inc.
Features
o USB 2.
0 (Full-Speed, 12Mbps)-Compliant Transceiver o Internal Pullup o VBUS Detection o Internal Series Resistors (MAX13345E) o ±15kV (HBM) ESD Protection on D+, D-, and VBUS o Enumeration Input Controls D+ Pullup Resistor o Supports 3-Wire DAT/SE0 Interface o +2.
3V to +3.
6V Interface Voltage (VL) o No Power-Supply Sequencing Required o Low USB Ou...
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