FEATURES

• Monolithic Saturn Network Interface that implements the ATM physical layer

for Broadband ISDN according to the ATM Forum User Network Interface

Specification and CCITT Recommendation I.432.

• Operates at 155.52 MHz in conjunction with an external clock and data

recovery device. Provides on-chip parallel to serial and serial to parallel

circuits with pseudo ECL interfaces to process a duplex 155.52 Mbit/s STS-

3c/STM-1 data stream.

• Supports a 19.44 Mbyte/s line interface option for devices requiring a byteserial STS-3c/STM-1 interface.

• Provides 4 cell deep FIFO buffers in both transmit and receive paths with a

byte-wide or word-wide system side datapath interface.

• Provides a generic 8-bit microprocessor bus interface for configuration,

control, and status monitoring.

• Provides a standard 5 signal P1149.1 JTAG test port for boundary scan board

test purposes.

• Low power, +5 Volt, CMOS technology.

• 160 pin high performance plastic quad flat pack (PQFP) package.

APPLICATIONS

• SONET/SDH Based ATM Switching Systems

• SONET/SDH Based ATM Terminals

• B-ISDN User-Network Interfaces

• B-ISDN Network Node Interfaces

• B-ISDN Test Equipment