XR16L788IQ-F Datasheet, PDF (52/54 Pages) Exar Corporation – HIGH PERFORMANCE 2.97V TO 5.5V OCTAL UART

XR16L788
HIGH PERFORMANCE 2.97V TO 5.5V OCTAL UART
REVISION HISTORY
REV. 1.2.3
Revision
Description
P1.0.0 Preliminary
P1.0.1 Corrected figure 2 pin diagram on pins 16 to 30 and 39.
P1.0.2 Corrected pins description (pin number) for TX3, RX6, DSR6# and 16/68#.
P1.0.3 Changed part number to XR16L788, added 5V spec and target timing, and corrected RX6 pin to be 39.
P1.0.4 Changed Icc to 5mA max. and Isleep current to 400uA max, clarified ENIR pin and MCR bits 2 and 6.
1.1.0
Updated Electrical Specification Tables. Added θ-ja and θ-jc values. Removed Preliminary designation.
1.1.1
1.1.2
1.1.3
Changed V_IL ( 0.8 to 0.7 max) and V_IH (2.2 to 2.4 min) in electrical characteristics tables.
Changed I_sleep max @ 3.3V from 0.40mA to 0.60 mA and @ 5V from 0.40 to 3.00mA
Deleted V_OH @ I_out =6mA. Changed condition on ICC from CLK=35MHz to “EXT Clock=2Mhz”. Changed
T_RDA from min =30ns to 35ns. Changed max V_OL @5V from 0.4 to 0.55V. Changed min V_OH @5V from 4.0 to
2.4V.
1.1.4
Updated values of AC Electrical Characteristics (T_AS, T_AH, T_CS, T_RD, T_ADS, T_ADH, T_WDS, T_WDH). Added Exar’s
UART Technical Support E-mail address to first and last page.
1.2.0
(April 2004) Added Device Status to Ordering Information and date to Revision History. Changed to single col-
umn format. Clarified pin descriptions- changed from using logic 1 and logic 0 to HIGH (VCC) and LOW
(GND) for input and output pin descriptions. Added VOH vs. IOH and VOL vs. IOL curves (Figure 16 and
Figure 17). Clarified Transmit and Receive interrupt timing diagrams (Figure 21-Figure 24). DREV regis-
ter was updated to 0x08 for devices with top mark date code of "H2 YYWW".
1.2.1
(February 2005) Corrected Trigger Table selection and programmable trigger level selection in Table 14.
1.2.2
(October 2005) Clarified wake-up interrupt in Sleep Mode description.
1.2.3
(July 2008) Corrected decription of Xon/Xoff/Special character interrupt.
NOTICE
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 2008 EXAR Corporation
Datasheet July 2008.
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.
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