COM8116

STANDARD MICROSYSTEMS CORPORATION COM 8116 COM 8116T Dual Baud Rate Generator Programmable Divider FEATURES o On chip crystal oscillator or external frequency input o Single + 5v power supply o Choice of 2 x 16 output frequencies o 16 asynchronous/synchronous baud rates o Direct UART/USRT/ ASTRO/USYNRT compatibility o Full duplex communication capability ORe-programmable ROM via CLASp® technology allows generation of other frequencies o TTL, MaS compatibility o Compatible with COM 5016 PIN CONFIGURATION XTALlExn 11 +5v 2 fR 3 RA 4 RB 5 Rc 6 RD 7 STR 8 NC 9 \J ~ 18 XTALlEXT2 l 17 fr J 16 TA 15 TB 14 Tc 13 TD 12 STT 11 GND 10 NC BLOCK DIAGRAM sn T. Ts REPROGRAMMABLE Te FREQUENCY SELECT ROM To I XTAUEXTl XTAL .L CLOCK BUFFER XTALlEXT2 DIVIDER DIVIDER .;.2 fr .;.2 fR R. REPROGRAM MABLE Rs FREQUENCY SELECT Re ROM RD A A ·5v GND STR 181 General Description The Standard Microsystem's COM 8116 is an enhanced version of the COM 5016 Dual Baud Rate Generator. It is fabricated using SMC's patented COPLAMOS® and CLASP ® technologies and employs depletion mode loads, allowing operation from a single +5v supply. The standard COM 8116 is specifically dedicated to generating the full spectrum of 16 asynchronous/ synchronous data communication frequencies for 16X UART/USRT devices. A large number of the frequencies available are also useful for 1X and 32X ASTRO/USYNRT devices. The COM 8116 features an internal crystal oscillator which may be used to provide the master re...