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XR16C854

QUAD UART WITH RX/TX FIFO COUNTERS,128-BYTE FIFO

GENERALDESCRIPTION TheXR16C854/854D1(854)isanenhancedquadUniversalAsynchronousReceiverandTransmitter(UART)eachwith128bytesoftransmitandreceiveFIFOs,transmitandreceiveFIFOcountersandtriggerlevels,automatichardwareandsoftwareflowcontrol,anddataratesofupto

XR16C854

Quad UART with RX/TX FIFO Counters and 128-Byte FIFO; ·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 Motorola Data Bus Interface select·Four independent UART channels·Register Set Compatible to 16C550·Data rates of up to 2 Mbps·Transmit and Receive FIFOs of 128 bytes·Programmable TX and RX FIFO Trigger Levels·Transmit and Receive FIFO Level Counters·Automatic Hardware (RTS/CTS) Flow Control·Selectable Auto RTS Flow Control Hysteresis·Automatic Software (Xon/Xoff) Flow Control·Wireless Infrared (IrDA 1.0)Encoder/Decoder·Sleep Mode (200 uA typical)·Crystal oscillator or external clock input·Pb-Free, RoHS Compliant Versions Offered\n;

The XR16C8541 (854) is a universal asynchronous receiver and transmitter (UART) with a dual foot print interface compatible with the ST16C554D/654 and ST68C554/654.\nThe 854 is an enhanced UART with 128 byte FIFOs, Independent Transmit and Receive FIFO counter, automatic hardware/software flow control, and data rates up to 1.5Mbps. 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.\nThe 854 is available in 64 pin LQFP, 68 pin PLCC and 100 pin QFP packages. The 64 pin package offers the 16 interface mode which is compatible with the industry standard ST16C554. The 68 and 100 pin packages offer an additional 68 mode which allows easy integration with Motorola, and other popular microprocessors. The XR16C854CV (64 pin) offers three state interrupt control while the XR16C854DV provides constant active interrupt outputs.\nThe 64 pin devices do not offer TXRDY/RXRDY outputs or the default clock select option (CLKSEL). The 100 pin packages offer faster channel status access by providing separate outputs for TXRDY and RXRDY, offer separate Infrared TX outputs and a musical instrument clock input (MIDICLK). The 854 combines the package interface modes of the 16C554/654 and 68C554/654 series on a single integrated chip.\nNOTE: 1Covered by U.S. Patent #5,649,122 and #5,949,787.\nFor UART technical support or to obtain an IBIS model for this product, please email Exar's UART Technical Support group.\n

XR16C854CJ

QUAD UART WITH RX/TX FIFO COUNTERS,128-BYTE FIFO

GENERALDESCRIPTION TheXR16C854/854D1(854)isanenhancedquadUniversalAsynchronousReceiverandTransmitter(UART)eachwith128bytesoftransmitandreceiveFIFOs,transmitandreceiveFIFOcountersandtriggerlevels,automatichardwareandsoftwareflowcontrol,anddataratesofupto

XR16C854CJ

2.97V TO 5.5V QUAD UART WITH 128-BYTE FIFO

GENERALDESCRIPTION TheXR16C854/854D1(854)isanenhancedquadUniversalAsynchronousReceiverandTransmitter(UART)eachwith128bytesoftransmitandreceiveFIFOs,transmitandreceiveFIFOcountersandtriggerlevels,automatichardwareandsoftwareflowcontrol,anddataratesofupto

XR16C854CQ

QUAD UART WITH RX/TX FIFO COUNTERS,128-BYTE FIFO

GENERALDESCRIPTION TheXR16C854/854D1(854)isanenhancedquadUniversalAsynchronousReceiverandTransmitter(UART)eachwith128bytesoftransmitandreceiveFIFOs,transmitandreceiveFIFOcountersandtriggerlevels,automatichardwareandsoftwareflowcontrol,anddataratesofupto

XR16C854CQ

2.97V TO 5.5V QUAD UART WITH 128-BYTE FIFO

GENERALDESCRIPTION TheXR16C854/854D1(854)isanenhancedquadUniversalAsynchronousReceiverandTransmitter(UART)eachwith128bytesoftransmitandreceiveFIFOs,transmitandreceiveFIFOcountersandtriggerlevels,automatichardwareandsoftwareflowcontrol,anddataratesofupto

XR16C854CV

QUAD UART WITH RX/TX FIFO COUNTERS,128-BYTE FIFO

GENERALDESCRIPTION TheXR16C854/854D1(854)isanenhancedquadUniversalAsynchronousReceiverandTransmitter(UART)eachwith128bytesoftransmitandreceiveFIFOs,transmitandreceiveFIFOcountersandtriggerlevels,automatichardwareandsoftwareflowcontrol,anddataratesofupto

XR16C854CV

2.97V TO 5.5V QUAD UART WITH 128-BYTE FIFO

GENERALDESCRIPTION TheXR16C854/854D1(854)isanenhancedquadUniversalAsynchronousReceiverandTransmitter(UART)eachwith128bytesoftransmitandreceiveFIFOs,transmitandreceiveFIFOcountersandtriggerlevels,automatichardwareandsoftwareflowcontrol,anddataratesofupto

XR16C854D

2.97V TO 5.5V QUAD UART WITH 128-BYTE FIFO

GENERALDESCRIPTION TheXR16C854/854D1(854)isanenhancedquadUniversalAsynchronousReceiverandTransmitter(UART)eachwith128bytesoftransmitandreceiveFIFOs,transmitandreceiveFIFOcountersandtriggerlevels,automatichardwareandsoftwareflowcontrol,anddataratesofupto

XR16C854D

Quad UART with RX/TX FIFO Counters and 128-Byte FIFO; ·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 Motorola Data Bus Interface select·Four independent UART channels·Register Set Compatible to 16C550·Data rates of up to 2 Mbps·Transmit and Receive FIFOs of 128 bytes·Programmable TX and RX FIFO Trigger Levels·Transmit and Receive FIFO Level Counters·Automatic Hardware (RTS/CTS) Flow Control·Selectable Auto RTS Flow Control Hysteresis·Automatic Software (Xon/Xoff) Flow Control·Wireless Infrared (IrDA 1.0)Encoder/Decoder·Sleep Mode (200 uA typical)·Crystal oscillator or external clock input·Pb-Free, RoHS Compliant Versions Offered\n;

The XR16C854D1 (854) is a universal asynchronous receiver and transmitter (UART) with is an enhanced UART with 128 byte FIFOs, Iindependent Transmit and Receive FIFO counter, automatic hardware/software flow control, and data rates up to 1.5Mbps. 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.\nThe 854 is an enhanced UART with 128 byte FIFOs, Independent Transmit and Receive FIFO counter, automatic hardware/software flow control, and data rates up to 1.5Mbps. 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.\nThe 854D is available in 64 pin TQFP package. The 64 pin package offers the 16 interface mode which is compatible with the industry standard ST16C554. The XR16C854DV provides constant active interrupt outputs.\nThe 64 pin devices do not offer TXRDY/RXRDY outputs or the default clock select option (CLKSEL). The 854 combines the package interface modes of the 16C554/654 and 68C554/654 series on a single integrated chip.\nNOTE: 1Covered by U.S. Patent #5,649,122 and #5,949,787.\nFor UART technical support or to obtain an IBIS model for this product, please email Exar's UART Technical Support group.\n