ST5481 Datasheet | STMicroelectronics

FEATURES S/T ISDN Interface s MUNICATION DEVICE CLASS AND VENDOR REQUESTS s SUPPORTS OSI LEVEL 1 IN CONFORMANCE WITH UIT-T I.430 FOR BASIC ACCESS AT S AND T INTERFACES (ETSI 300012/ANSI T1.605) s BUS OR SELF POWERED APPLICATION (PIN PROGRAMMABLE) s ONNOW POWER MANAGEMENT (D0,D2,D3) SUSPEND MODE PLIANCE s LINE INTERFACE TRANSFORMER DIRECT DRIVE s PIN PROGRAMMABLE HIGH/LOW POWER USB DEVICE REGISTRATION, WAKE-UP CAPABILITY, USB DEVICE IDENTIFICATION GENERAL - USB hot plug and play interface. - Control access and interrupt handling provided through the USB interface. - All FIFOS and FIFOS management needed included for USB/ISDN data processing. - Internal PLL to generate the USB 48MHz clock from a 15.36MHz crystal. - Internal regulator for 3.3V generation from USB bus 5V. - 48 pin TQFP package. - 0.35 micron HCMOS 6 process. DESCRIPTION ST5481 bines ISDN link access and an USB interface to allow a very simple USB/ISDN modem design with all ISDN protocols and upper applications processed into the HOST PC. s FULL-DUPLEX TRANSMISSION AT 192KBps ON SEPARATE TRANSMIT AND RECEIVE TWISTED PAIRS USING ALTERNATE MARK INVERSION (AMI) LINE CODING s 2 B CHANNELS AT 64KBps EACH PLUS 1 D CHANNEL AT 16KBps s ALL I.430 WIRING CONFIGURATIONS SUPPORTED INCLUDING PASSIVE BUS FOR TE’S DISTRIBUTED POINT TO POINT AND POINT TO MULTIPOINT s MULTIFRAME SUPPORT s ANALOG PART: INCLUDED WITH ADAPTIVE DETECTION THRESHOLD AND EQUALIZER USB Interface s USB 1.0 SPECIFICATION FULL PLIANCE, 1.1 SPECIFICATION PATIBILITY (1.1 POWER MANAGEMENT PLIANCE), 12 MBps FULL SPEED s ON-CHIP USB DIGITAL PLL TRANSCEIVER WITH s 6 ISOCHRONOUS ENDPOINTS FOR B1, B2, D CHANNELS ENDPOINT FOR I430 DATA.INTERRUPT TQFP48 ORDERING NUMBER: ST5481 TQF7 s ISDN PROTOCOL AND DATA.CONTROL ENDPOINT FOR USB STANDARD PLUS VENDOR SPECIFIC REQUEST October 2000 This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without notice. 1/18 -...