ST16C2550CQ48 EXAR [Exar Corporation], ST16C2550CQ48 Datasheet - Page 37

• Manufacturer Part Number: ST16C2550CQ48
• Description: 2.97V TO 5.5V DUART WITH 16-BYTE FIFO
• Manufacturer: EXAR [Exar Corporation]

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REV. 4.4.0
EXAR Corporation reserves the right to make changes to the products contained in this publication in order to
improve design, performance or reliability. EXAR Corporation assumes no responsibility for the use of any
circuits described herein, conveys no license under any patent or other right, and makes no representation that
the circuits are free of patent infringement. Charts and schedules contained here in are only for illustration
purposes and may vary depending upon a user’s specific application. While the information in this publication
has been carefully checked; no responsibility, however, is assumed for inaccuracies.
EXAR Corporation does not recommend the use of any of its products in life support applications where the
failure or malfunction of the product can reasonably be expected to cause failure of the life support system or
to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless
EXAR Corporation receives, in writing, assurances to its satisfaction that: (a) the risk of injury or damage has
been minimized; (b) the user assumes all such risks; (c) potential liability of EXAR Corporation is adequately
protected under the circumstances.
Copyright 2004 EXAR Corporation
Datasheet October 2004.
Send your UART technical inquiry with technical details to hotline: [e-mail].
Reproduction, in part or whole, without the prior written consent of EXAR Corporation is prohibited.
February 2002
April 2002
September 2003 4.2
April 2004
August 2004
October 2004
Date
4.0
4.1
4.2.1
4.3.1
4.4.0
Revision
Changed to standard style format. Text descriptions were clarified and simplified (eg.
DMA operation, FIFO mode vs. Non-FIFO mode operations etc). Clarified timing dia-
grams. Renamed Rclk (Receive Clock) to Bclk (Baud Clock) and timing symbols.
Added T
Changed A0-A7 in Figures
Changed to single column format. Added Device Status to Ordering Information.
Devices with top markings of "A2 YYWW" and newer have 5V tolerant inputs. Devices
with top markings of "CC YYWW" and older do not have 5V tolerant inputs.
Corrected unit of clock pulse duration (CLK) in AC Electrical Characteristics table from
’MHz’ to ’ns’.
Updated the AC Timing values for CS, IOR, IOW and TDY parameters.
The AC and DC Electrical Characteristics tables apply to devices with top mark date
code of "A2 YYWW" and newer.
AH
, T
CS
REVISION HISTORY
and OSC.
NOTICE
37
15
and
16
2.97V TO 5.5V DUART WITH 16-BYTE FIFO
Description
to A0-A2. Clarified MCR bit-3 description.
ST16C2550