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SC16C554 Datasheet

  • SC16C554

  • Quad UART with 16-byte FIFO and infrared (IrDA)

  • Philips

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SC16C554/554D
Quad UART with 16-byte FIFO and infrared (IrDA)
encoder/decoder
Rev. 05 鈥?10 May 2004
Product data
1. Description
The SC16C554/554D is a 4-channel Universal Asynchronous Receiver and
Transmitter (QUART) used for serial data communications. Its principal function is to
convert parallel data into serial data and vice versa. The UART can handle serial data
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 will
power-up to be functionally equivalent to the 16C454. Programming of control
registers enables the added features of the SC16C554/554D. Some of these added
features are the 16-byte receive and transmit FIFOs, automatic hardware or software
鏗俹w control and Infrared encoding/decoding. The selectable auto-鏗俹w control feature
signi鏗乧antly reduces software overload and increases system ef鏗乧iency while in FIFO
mode by automatically controlling serial data 鏗俹w using RTS output and CTS input
signals. The SC16C554/554D also provides DMA mode data transfers through FIFO
trigger levels and the TXRDY and RXRDY signals. On-board status registers provide
the user with error indications, operational status, and modem interface control.
System interrupts may be tailored to meet user requirements. An internal loop-back
capability allows on-board diagnostics.
The SC16C554/554D operates at 5 V, 3.3 V and 2.5 V, and the industrial temperature
range, and is available in plastic PLCC68, LQFP64, and LQFP80 packages.
2. Features
s
5 V, 3.3 V and 2.5 V operation
s
Industrial temperature range
s
The SC16C554/554D is pin compatible with the industry-standard
ST16C454/554, ST68C454/554, ST16C554, TL16C554
s
Up to 5 Mbit/s data rate at 5 V and 3.3 V, and 3 Mbit/s at 2.5 V
s
16-byte transmit FIFO
s
16-byte receive FIFO with error 鏗俛gs
s
Automatic software/hardware 鏗俹w control
s
Programmable Xon/Xoff characters
s
Software selectable Baud Rate Generator
s
Four selectable Receive FIFO interrupt trigger levels
s
Standard modem interface or infrared IrDA encoder/decoder interface
s
Sleep mode
s
Standard asynchronous error and framing bits (Start, Stop, and Parity Overrun
Break)
s
Transmit, Receive, Line Status, and Data Set interrupts independently controlled

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