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ST68C454 Folha de dados(PDF) 1 Page - Exar Corporation |
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ST68C454 Folha de dados(HTML) 1 Page - Exar Corporation |
1 / 30 page EXAR Corporation, 48720 Kato Road, Fremont, CA 94538 • (510) 668-7000 • FAX (510) 668-7017 ST16C454 ST68C454 Rev. 3.20 QUAD UNIVERSAL ASYNCHRONOUS RECEIVER/TRANSMITTER (UART) 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 inte- grated chip. FEATURES • Software compatibility with the Industry Standard 16C450 • 1.5 Mbps transmit/receive operation (24MHz) • Independent transmit and receive control • Software selectable Baud Rate Generator • Modem control signals (-CTS, -RTS, -DSR, -DTR, -RI, -CD) • Programmable character lengths (5, 6, 7, 8) • Even, odd, or no parity bit generation and detection • Internal loop-back diagnostics • TTL compatible inputs, outputs • Low power ORDERING INFORMATION Part number Pins Package Operatingtemperature ST16C454CJ68 68 PLCC 0° C to + 70° C ST16C454IJ68 68 PLCC -40° C to + 85° C 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 -DSRA -CTSA -DTRA VCC -RTSA INTA -CSA TXA -IOW TXB -CSB INTB -RTSB GND -DTRB -CTSB -DSRB -DSRD -CTSD -DTRD GND -RTSD INTD -CSD TXD -IOR TXC -CSC INTC -RTSC VCC -DTRC -CTSC -DSRC ST16C454CJ68 16 MODE PLCC Package 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 -DSRA -CTSA -DTRA VCC -RTSA -IRQ -CS TXA R/-W TXB A3 N.C. -RTSB GND -DTRB -CTSB -DSRB -DSRD -CTSD -DTRD GND -RTSD N.C. N.C. TXD N.C. TXC A4 N.C. -RTSC VCC -DTRC -CTSC -DSRC ST16C454CJ68 68 MODE |
Nº de peça semelhante - ST68C454 |
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Descrição semelhante - ST68C454 |
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