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ICS1892Y-10 View Datasheet(PDF) - Integrated Circuit Systems

Part Name
Description
MFG CO.
ICS1892Y-10
ICST
Integrated Circuit Systems ICST
'ICS1892Y-10' PDF : 148 Pages View PDF
ICS1892 Data Sheet
Chapter 9 Pin Diagram, Listings, and Descriptions
Table 9-5. Configuration Pins (Continued)
Pin
Name
Pin
Pin
Number Type
Pin Description
REF_IN
53
Input (Frequency) Reference Input.
This pin can be connected to either of the following frequency
reference sources:
A 25-MHz crystal
A 25-MHz oscillator
For the tolerance of the clock that is used, see Section 10.5.1, “Timing
for Clock Reference In (REF_IN) Pin”.
REF_OUT
52
Input
(Frequency) Reference Output.
When the frequency reference source used is a:
A 25-MHz crystal, this pin is used in combination with the REF_IN
pin.
A 25-MHz oscillator, this pin is left unconnected.
RESET*
22
Input (System) Reset (Active Low).
When the signal on this active-low pin is logic:
– Low, the ICS1892 is in hardware reset.
– High, the ICS1892 is operational.
For more information on hardware resets, see the following:
Section 5.1.2.1, “Hardware Reset”
Section 10.5.17, “Reset: Hardware Reset and Power-Down”
ICS1892, Rev. D, 2/26/01
© 2000-2001, Integrated Circuit Systems, Inc.
All rights reserved.
108
February 26, 2001
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