DAN-101 Datasheet, PDF (2/3 Pages) Exar Corporation – Replacing SCN68681 with XR68C681 DUART

DATA COMMUNICATIONS APPLICATION NOTE
DAN-101
APPLICATIONS
1) OSCILLATOR ALONE
SCN68681
X1
X2
XR68C681, SCC68692,
XR68C92, XR68C192,
X1
X2
2) OSCILLATOR OUTPUT
CLOCK FEEDS OTHER
PERIPHERAL(S)
X1
X2
Osc. Clock to
Peripherals
X1
X2
Osc. Clock to
Peripherals
3) EXTERNAL CLOCK
INPUT
X1
X2
X1
Ext. Clock
Figure 1. Oscillator Circuit Applications
X2
Ext. Clock
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