DS2141A

DS2141A T1 Controller www.dalsemi.com FEATURES DS1/ISDN-PRI framing transceiver Frames to D4, ESF, and SLC-96 formats Parallel control port Onboard, dual two-frame elastic store slip buffers Extracts and inserts robbed-bit signaling Programmable output clocks Onboard FDL support circuitry 5V supply; low-power CMOS Available in 40-pin DIP and 44-pin PLCC (DS2141Q) Compatible with DS2186 Transmit Line Interface, DS2187 Receive Line Interface, DS2188 Jitter Attenuator, DS2290 T1 Isolation Stik, and DS2291 T1 Long Loop Stik PIN ASSIGNMENT TCLK TSER TCHCLK TPOS TNEG AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7 BTS RD(DS) CS ALE(AS) WR(R/W) RLINK VSS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 VDD TSYNC TLINK TLCLK INT1 INT2 RLOS/LOTC TCHBLK RCHBLK LI CS LI CLK LI SDI SYSCLK RNEG RPOS RSYNC RSER RCHCLK RCLK RLCLK 40-Pin DIP (600-mil) TNEG TPOS TCHCLK TSER TCLK VDD TSYNC TLINK TLCLK INT1 INT2 AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7 BTS RD(DS) NC 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 5 4 3 2 1 44 43 42 41 40 39 38 37 36 35 44-PIN PLCC 34 33 32 31 30 29 28 RLOS/LOTC TCHBLK RCHBLK LI_CS LI_CLK LI_SDI NC NC SYSCLK RNEG RPOS DESCRIPTION The DS2141A is a comprehensive, software-driven T1 framer. It is meant to act as a slave or coprocessor to a microcontroller or microprocessor. Quick access via the parallel control port allows a single micro to handle many T1 lines. The DS2141A is very flexible and can be config...