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SC16C554B Datasheet

  • SC16C554B

  • 5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 16-byte...

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  • PHILIPS

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SC16C554B/554DB
5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 16-byte
FIFOs
Rev. 01 鈥?9 February 2005
Product data sheet
1. General description
The SC16C554B/554DB 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
廬
or Motorola
廬
interface.
The SC16C554B/554DB 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 SC16C554B/554DB. Some of these added features are
the 16-byte receive and transmit FIFOs, four receive trigger levels. The
SC16C554B/554DB 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 SC16C554B/554DB 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
s
s
s
s
s
s
s
s
s
4 channel UART
5 V, 3.3 V and 2.5 V operation
Industrial temperature range (鈭?0
擄C
to +85
擄C)
The SC16C554B is pin and software compatible with the industry-standard
ST16C454/554, ST68C454/554, ST16C554, TL16C554
The SC16C554DB is pin and software compatible with ST16C554D, and software
compatible with ST16C454/554, ST16C554, TL16C554
Up to 5 Mbit/s data rate at 5 V and 3.3 V, and 3 Mbit/s at 2.5 V
5 V tolerant inputs
16-byte transmit FIFO
16-byte receive FIFO with error 鏗俛gs
Programmable auto-RTS and auto-CTS
x
In auto-CTS mode, CTS controls transmitter
x
In auto-RTS mode, RxFIFO contents and threshold control RTS
Automatic hardware 鏗俹w control (RTS/CTS)
Software selectable Baud Rate Generator
Four selectable Receive FIFO interrupt trigger levels
Standard modem interface
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