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Exar Corporation |
2.90V TO 5.5V UART WITH 32-BYTE FIFO to support today’s highly demanding data communication needs. The enhanced features include automatic hardware and software flow control, selectable TX and RX trigger levels, and wireless infrared (IrDA) encoder/decoder. The device provides a new cap |
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Exar Corporation |
UART with 128-byte FIFOs FIFO Counters and Half-duplex Control D5 D6 D7 S2 RX A4 TX A5 A6 A7 -LPT1 7 8 9 10 11 12 13 14 15 16 17 6 5 4 3 2 1 -CTS VCC -CD -RI D4 D3 D2 D1 D0 A9 -AS RESET -OP1 -DTR -RTS S3 GND IRQA IRQB A0 A1 A2 XR16C850CJ "PC" MODE CONNECTION 35 34 33 32 31 30 29 18 19 20 |
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Exar Corporation |
UART WITH 16-BYTE FIFO • Pin to pin and functionally compatible to the Industry Standard 16C550 • 2.97 to 5.5 volt operation • 24MHz clock operation at 5V • 16MHz clock operation at 3.3V • 16 byte transmit FIFO • 16 byte receive FIFO with error flags • Full duplex operatio |
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Exar Corporation |
(ST16C1450 / ST16C1451) 2.97V TO 5.5V UART may be tailored by external software to meet specific user requirements. An internal loopback capability allows onboard diagnostics. The 145X is available in a 28-pin PLCC/plastic-DIP , 48-pin TQFP packages. The Baud rate generator can be configured |
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Exar Corporation |
2.97V TO 5.5V QUAD UART WITH 64-BYTE FIFO • Pin-to-pin compatible with ST16C454, ST16C554 and TI’s TL16C554AFN and TL16C754BFN • Intel or Motorola Data Bus Interface select • Four independent UART channels s s s s s s s s s s Register Set Compatible to 16C550 Data rates of up to 1.5 Mbps |
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Exar Corporation |
QUAD UART WITH 16-BYTE FIFOS ST16C554/554D/68C554 Figure 1, Package Descriptions 64 Pin TQFP Package -CDD -CDA GND -CDA VCC RXD RXA -RID -RIA -RIA D7 D6 D5 D4 D3 D2 D1 D0 68 Pin PLCC Package -CDD 61 60 59 58 57 56 55 54 GND VCC RXD 63 RXA -RID 62 N.C. 65 D7 D6 D5 D4 D3 D2 D1 |
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Exar Corporation |
2.97V TO 5.5V DUAL UART include 128 bytes of TX and RX FIFOs, programmable TX and RX FIFO trigger level, FIFO level counters, automatic (RTS/CTS) hardware and (Xon/Xoff) software flow control, automatic RS485 half duplex direction control output and data rates up to 6.25 Mb |
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Exar Corporation |
2.97V TO 5.5V QUAD UART Added feature in devices with top mark date code of "F2 YYWW" and newer: s 5 volt tolerant inputs • 2.97 to 5.5 Volt Operation • Pin-to-pin compatible with the industry standard ST16C554 and ST16C654 and TI’s TL16C554N and TL16C754BFN • Intel or Moto |
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Exar Corporation |
DUAL UART of 128 bytes of transmit and receive FIFOs, programmable transmit and receive FIFO trigger levels, transmit and receive FIFO counters, IrDA (Infrared Data Association) encoder/decoder, automatic RTS/CTS hardware flow control with selectable hysteresi |
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Exar Corporation |
2.97V TO 5.5V QUAD UART • Pin-to-pin compatible with the industry standard ST16C454, ST68C454, ST68C554, TI’s TL16C554A and Philips’ SC16C554B • Intel or Motorola Data Bus Interface select • Four independent UART channels ■ Register Set Compatible to 16C550 ■ Data rates of |
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Exar Corporation |
3.3V AND 5V DUART WITH 128-BYTE FIFO It supports the Exar’s enhanced features of 128 bytes of TX and RX FIFOs, programmable FIFO trigger level and FIFO level counters, automatic hardware (RTS/CTS) and software flow control, automatic RS-485 half duplex direction control output and a co |
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Exar Corporation |
QUAD UNIVERSAL ASYNCHRONOUS RECEIVER/TRANSMITTER (UART) -DSRD -CTSD -DTRD GND -RTSD N.C. N.C. TXD N.C. TXC A4 N.C. -RTSC VCC -DTRC -CTSC -DSRC ST16C454CJ68 68 MODE 53 52 51 50 49 48 47 46 45 44 ORDERING INFORMATION Part number -CTSB -DSRB ST16C454CJ68 ST16C454IJ68 68 68 VCC RXC 16/-68 -RESET X |
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Exar Corporation |
DUAL UART ERROR -DSRB -BUSY BIDEN SLCT -CDB -CSB GND GND VCC ACK RXB 62 N.C. Added features in devices with top mark date code of "F2 YYWW" and newer: • 5V Tolerant Inputs • Pin to pin and functional compatible to TL16C452 • 2.97 to 5.5 volt operation • Softw |
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Exar Corporation |
(ST16C2450 / ST16C2451) 2.97V TO 5.5V DUART Added feature in devices with top marking "A2 YYWW" and newer: s 5 Volt Tolerant Inputs • 2.97 to 5.5 Volt Operation • Pin-to-pin compatible to Exar’s ST16C2450, ST16C2550, XR16C2850 TQFP package XR16L2550, XR16L2750 and • Pin-to-pin compatible to |
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Exar Corporation |
(ST16C2450 / ST16C2451) 2.97V TO 5.5V DUART Added feature in devices with top marking "A2 YYWW" and newer: s 5 Volt Tolerant Inputs • 2.97 to 5.5 Volt Operation • Pin-to-pin compatible to Exar’s ST16C2450, ST16C2550, XR16C2850 TQFP package XR16L2550, XR16L2750 and • Pin-to-pin compatible to |
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Exar Corporation |
(ST16C1550 / ST16C1551) 2.97V TO 5.5V UART WITH 16-BYTE FIFO may be tailored by external software to meet specific user requirements. An internal loopback capability allows onboard diagnostics. The baud rate generator can be configured for either crystal or external clock input with the exception of the 28 pin |
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Exar Corporation |
DUAL UART WITH 128-byte FIFOs AND RS-485 HALF DUPLEX CONTROL may be tailored by external software to meet specific user requirements. An internal loopback capability allows onboard diagnostics. Independent programmable baud rate generators are provided to select transmit and receive clock rates up to 1.5 Mbps. |
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Exar Corporation |
DUAL UART WITH 16-BYTE FIFO AND PARALLEL PRINTER PORT -RXRDYA PLCC Package -RXRDYB 61 60 59 58 57 56 55 54 ERROR 63 -DSRB BIDEN -BUSY SLCT -CDB -CSB GND GND VCC ACK RXB 62 -RIB CLK Added features in device revision "F" and newer: • 5V Tolerant Inputs • Pin to pin and functional compatible to ST16C452/ |
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Exar Corporation |
UNIVERSAL ASYNCHRONOUS RECEIVER/TRANSMITTER (UART) • Pin to pin and functionally compatible to the Industry Standard 16450 • 2.97 to 5.5 volt operation • 1.5 Mbps transmit/receive operation (24MHz) • Programmable word lengths (5, 6, 7, 8) • Even, odd, force, or no parity generation and detection • In |
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Exar Corporation |
2.97V TO 5.5V DUAL UART WITH 16-BYTE FIFO may be tailored by external software to meet specific user requirements. Indepedendent programmable baud rate generators are privded to select transmit and receive clock rates from 50 Bps to 4 Mbps. The baud rate generator can be configured for eithe |
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