ST5481 Datasheet PDF | STMicroelectronics

STMicroelectronics ST5481

The ST5481 is a single chip ISDN -BRI with USB Interface low cost controller. The purpose is a low cost ISDN modem for applications like INTERNET ACCES and FAX capabilities when the PC is ON (full operating mode). The bonus is to offer an easy and lowcost access to INTERNET at a rate of 128kbits/sec.

Part No.	ST5481
Datasheet	ST5481 Download
Manufacturer	STMicroelectronics
Description	L.O.U.I.S - LOW COST USB ISDN SOLUTION
Buy	Stock & Price

FEATURES

S/T ISDN Interface s COMMUNICATION 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 COMPLIANCE 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 combines ISDN link access and an USB interface to allow a very simple USB/ISDN modem design with all ISDN protocols and upper applications pro...