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| MCS7784 USB to IrDa Port Features * Low-power 3.3V CMOS design * On board 5V to 3.3V voltage regulator * Single 12 MHz crystal * IrDA data rates from 2.4 Kbps to 115.2 kbps in SIR mode * USB specification 1.1 compliant. * Re-configurable Vendor specific parameters (Vendor ID, Product ID, Release #) * Support for 4 string descriptors (Language ID, Manufacture ID, Product Name, Serial Number) * Supports all USB standard commands. * I2C interface for EEPROM * Low-profile 28-Pin SSOP package Applications * Cell Phones * Embedded applications * Add-on IrDA dingle Application Note * AN7784 Evaluation Board * MCS7784-EVB General Description The MCS7784 controller provides bridging between the Universal Serial Bus (USB) input and IrDA port. This device contains all the necessary logic to communicate with the host computer via the USB bus. Supports data rate of 2.4Kbps to 115.2Kbps. In addition, the MCS7784 contains a 3.3V regulator and operates in bus-powered mode. The MCS7784 uses single 12 MHz crystal oscillator. Ordering Information Commercial Grade ( 0 C to +70 C ) MCS7784CS MCS7784CS-GR 28-SSOP 28-SSOP Standard RoHS Page 2-20 MCS7784 USB to IrDa Port MCS7784 Pin assignment TX N.C. N.C. RSTO RX N.C. GND 3.3V N.C. 1 2 3 4 28 XTAL2 27 XTAL1 26 TST 25 AGND 6 7 8 9 MCS7784CS 5 24 3.3VA 23 N.C. 22 N.C. 21 GND 20 5V 19 RESET 18 GND 17 VOUT 16 DM 15 DP N.C. 10 N.C. 11 TCLK 12 EECLK 13 EESDA 14 Page 2-21 |
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