COM2661-3 Datasheet | SMSC

STANDARD MICROSYSTEMS CORPORATiIOiN'F=== 2661-1 2661-2 2661-3 j.1PC FAMILY Enhanced Programmable munication Interface EPCI Features o Synchronous and Asynchronous Full Duplex or Half Duplex Operations ORe-programmable ROM on-chip baud rate generator o Synchronous Mode Capabilities -Selectable 5 to 8-Bit Characters -Selectable 1 or 2 SYNC Characters -Internal or External Character Synchronization - Transparent or Non-Transparent Mode - Transparent mode DLE stuffing (Tx) and detection (Rx) -Automatic SYNC or DLE-SYNC Insertion -SYNC, DLE and OLE-SYNC stripping -Odd, Even, or No Parity - Local or remote maintenance loop back mode o Asynchronous Mode Capabilities -Selectable 5 to 8-Bit Characters plus parity -3 Selectable Clock Rates (1X, 16X, 64X the Baud Rate) - Line Break Detection and Generation -1, 11f2, or 2-Stop Bit Detection and Generation - False Start Bit Detection -Odd, Even, or No Parity -Parity, Overrun, and framing error detect - Local or remote maintenance loop back mode -Automatic serial echo mode (echoplex) o Baud Rates -DC to 1.0M Baud (Synchronous) -DC to lOM Baud (1X, Asynchronous) -DC to 62.5K Baud (16X, Asynchronous) -DC to 15.625K Baud (64X, Asynchronous) PIN CONFIGURATION 02 03 2 RxO 3 GNO 4 04 5 05 06 07 CE11 A012 R/W13 RxROY 14 2801 2700 26Vcc 25 RxC/BKOET 240TR 23RTS 220SR 21 RESET 20 BRCLK 19TxO 18 TxEMT/OSCHG 17CTS 160CO 15 TxROY Package: 28-pin D.I.P. o Double Buffering of Data o RxC and TxC pins are short circuit protected o Internal or External Baud Rate Clock 03 baud rate sets (2661-1, -2, -3) 016 internal rates for each version o Single +5 volt Power Supply o TTL patible o No System Clock Required o patible with EPCI 2661 GENERAL DESCRIPTION The 2661 is an MaS/LSI device fabricated using SMC's patented...