SC16C554

5 V, 3.3 V and 2.5 V operation
Industrial temperature range
The SC16C554/554D is pin compatible with the industry-standardST16C454/554, ST68C454/554, ST16C554, TL16C554
Up to 5 Mbit/s data rate at 5 V and 3.3 V, and 3 Mbit/s at 2.5 V
16-byte transmit FIFO
16-byte receive FIFO with error flags
Automatic software/hardware flow control
Programmable Xon/Xoff characters
Software selectable Baud Rate Generator
Four selectable Receive FIFO interrupt trigger levels
Standard modem interface or infrared IrDA encoder/decoder interface
Sleep mode
Standard asynchronous error and framing bits (Start, Stop, and Parity OverrunBreak)
Transmit, Receive, Line Status, and Data Set interrupts independently controlled
Fully programmable character formatting:
   5, 6, 7, or 8-bit characters
   Even, Odd, or No-Parity formats
   1, 1¹/₂, or 2-stop bit
   Baud generation (DC to 5 Mbit/s)
False start-bit detection
Complete status reporting capabilities
3-State output TTL drive capabilities for bi-directional data bus and control bus
Line Break generation and detection
Internal diagnostic capabilities:
   Loop-back controls for communications link fault isolation
Prioritized interrupt system controls
Modem control functions (CTS, RTS, DSR, DTR, RI, DCD).

The SC16C554/554D is a 4-channel Universal Asynchronous Receiver andTransmitter (QUART) used for serial data communications. Its principal function is toconvertparalleldataintoserialdataandviceversa.TheUARTcanhandleserialdata
rates up to 5 Mbit/s. It comes with an Intel or Motorola interface.

The SC16C554/554D is pin compatible with the ST16C554 and TL16C554 and it willpower-up to be functionally equivalent to the 16C454. Programming of controlregisters enables the added features of the SC16C554/554D. Some of these addedfeatures are the 16-byte receive and transmit FIFOs, automatic hardware or softwareflow control and Infrared encoding/decoding. The selectable auto-flow control feature significantlyr educessoftwa reoverloa dandincreasessystemefficiencywhileinFIFOmode by automatically controlling serial data flow using RTS output and CTS inputsignals. The SC16C554/554D also provides DMA mode data transfers through FIFOtrigger levels and the TXRDY and RXRDY signals. On-board status registers providethe user with error indications, operational status, and modem interface control.System interrupts may be tailored to meet user requirements. An internal loop-backcapability allows on-board diagnostics.

TheSC16C554/554Doperatesat5 V,3.3 Vand2.5 V,andtheindustrialtemperaturerange, and is available in plastic PLCC68, LQFP64, and LQFP80 packages.