Product category:
Networking Hardware
News Release from: Saelig Company | Subject: Micro-USB
Edited by the Electronicstalk Editorial
Team on 31 March 2006
USB-serial interface is easy to apply
Adding a USB serial connection to a micro or circuit with baud rates up to 1Mbit/s is now as simple as adding eight pads to the target board on a 0.1in" grid.
According to Saelig, adding a USB serial connection to a micro or circuit with baud rates up to 1Mbit/s is now as simple as adding eight pads to the target board on a 0.1in" grid The tiny 0.7 x 0.5in Micro-USB uses a standard USB B connector to connect to a PC using a standard USB cable, allowing simple connection to breadboards or PCBs
This article was originally published on Electronicstalk on 16 Nov 2005 at 8.00am (UK)
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Based on SiLabs CP2101, and only requiring ground, Rx and Tx signals, the Micro-USB doesn't need any modem handshaking lines available from the CP2101 chip.
But suspend, reset and 3.3V regulated 100mA source is conveniently available from Micro-USB too.
Operating temperature range is -40 to +85C.
The Micro-USB makes an easy USB-serial interface, so users an easily create USB to RS232 convertors, USB to RS422/RS-485 convertors, upgrade legacy RS232 devices, make PDA and cellphone USB interface cables, barcode readers, POS terminals etc.
The CP2101 is a 5 x 5mm single-chip USB to UART bridge that converts data traffic between USB and UART formats.
The chip includes a complete USB 2.0 full-speed function controller, bridge control logic and a UART interface with transmit/receive buffers and modem handshake signals.
The device also features an internal 1024byte EEPROM, a voltage regulator, a USB transceiver and an integrated internal oscillator, eliminating almost all external components generally required in USB applications.
System development is further simplified by royalty-free device drivers for PC, (Windows 98SE/2000/XP), Macintosh and Linux platforms.
User programmable custom baud rates, integrated transceiver and precision clock, CP2101 supports USB suspend states.
The Micro-USB is optionally available with the pin-compatible CP2102.
This version - unlike with other USB ICs - supports all modem interface signals: hardware X-on/X-off handshaking; 5, 6, 7, 8bit data; 1, 1.5, 2 stop bits; odd, even, mark, space or no parity; on-chip 512byte receive buffer; on-chip 512byte transmit buffer; event character support.
The Micro-USB is available now at $25 each (one-off) from stock from Saelig.
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