ST16C454

QUAD UNIVERSAL ASYNCHRONOUS RECEIVER/TRANSMITTER (UART) ST16C454 ST68C454 DESCRIPTION The ST16C454 is a universal asynchronous receiver and transmitter (UART) with a dual foot print interface. The 454 is an enhanced UART with data rates up to 1.5Mbps and software compatible to ST16C450. Onboard status registers provide the user with error indications and operational status, modem interface control. System interrupts may be tailored to meet user requirements. An internal loop-back capability allows onboard diagnostics. The ST16C454 offer an additional 68 mode which allows easy integration with Motorola, and other popular microprocessors. The 454 combines the package interface modes of the ST16C454 and ST68C454 series on a single integrated chip. PLCC Package INTSEL -CDD 61 -CDA GND VCC RXD 63 RXA 68 67 66 65 64 -DSRA -CTSA -DTRA VCC -RTSA INTA -CSA TXA -IOW TXB -CSB INTB -RTSB GND -DTRB -CTSB -DSRB 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 62 9 8 7 6 5 4 3 2 1 -RID -RIA D7 D6 D5 D4 D3 D2 D1 D0 60 59 58 57 56 55 54 -DSRD -CTSD -DTRD GND -RTSD INTD -CSD TXD -IOR TXC -CSC INTC -RTSC VCC -DTRC -CTSC -DSRC ST16C454CJ68 16 MODE 53 52 51 50 49 48 47 46 45 44 VCC RXC RESET 16/-68 XTAL1 XTAL2 Software compatibility with the Industry Standard 16C450 1.5 Mbps transmit/receive operation (24MHz) Independent transmit and receive control Software selectable Baud Rate Generator ...