Z8F16800144ZCOG Zilog, Z8F16800144ZCOG Datasheet - Page 326
Z8F16800144ZCOG
Manufacturer Part Number
Z8F16800144ZCOG
Description
KIT DEV FOR Z8F642 MCU 44 PIN
Manufacturer
Zilog
Series
Z8 Encore!®r
Type
MCUr
Specifications of Z8F16800144ZCOG
Contents
Hardware, Software and Documentation
For Use With/related Products
Z8F642
For Use With
269-4661 - KIT ACC ETHERNET SMART CABLE
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
269-4678
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Main Crystal Oscillator Operation
PS025011-1010
The Flash Option bit XTLDIS controls whether the crystal oscillator is enabled during
reset. The crystal may later be disabled after reset if a new oscillator has been selected as
the system clock. If the crystal is manually enabled after reset through the OSCCTL
register, the user code must wait at least 1000 crystal oscillator cycles for the crystal to
stabilize. After this, the crystal oscillator may be selected as the system clock.
Figure 62
fundamental-mode, parallel-resonant crystal operating at 20 MHz. Recommended
20 MHz crystal specifications are provided in
add no more than 4 pF of stray capacitance to either the X
does not occur, reduce the values of capacitors C
Table 172. Recommended Crystal Oscillator Specifications
Parameter
Frequency
Resonance
Figure 62. Recommended 20 MHz Crystal Oscillator Configuration
C1 = 20 pF
displays a recommended configuration for connection with an external
XIN
Value
20
Parallel
P R E L I M I N A R Y
On-Chip Oscillator
Crystal
Units
MHz
Table
1
and C
172. Printed circuit board layout must
Z8 Encore! XP
2
Comments
to decrease loading.
IN
or X
XOUT
C2 = 20 pF
Product Specification
OUT
pins. If oscillation
®
Crystal Oscillator
F1680 Series
312
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