z8e001 ZiLOG Semiconductor, z8e001 Datasheet - Page 23
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z8e001
Manufacturer Part Number
z8e001
Description
Feature-rich Z8plus One-time Programmable Otp Microcontroller
Manufacturer
ZiLOG Semiconductor
Datasheet
1.Z8E001.pdf
(46 pages)
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Crystals and Resonators
Crystals and ceramic resonators (Figure 16) should have the
following characteristics to ensure proper oscillation:
DS001101-Z8X0400
Crystal Cut
Mode
Crystal Capacitance
Load Capacitance
Resistance
V
cillator input circuitry.
CC
power lines should be separated from the clock os-
Z8E001
Clock Generator Circuit
XTAL2
XTAL1
Z8E001
AT (crystal only)
Parallel, Fundamental Mode
<7pF
10pF < CL < 220 pF,
15 typical
100 ohms max
XTAL2
XTAL1
16
17
V
SS
Signals A B
16
15
17
Must Be Avoided)
Figure 15. Circuit Board Design Rules
(Parallel Traces
Signal C
P R E L I M I N A R Y
C1
C2
¥
Depending on the operation frequency, the oscillator can re-
quire additional capacitors, C1 and C2, as shown in Figure
16 and Figure 17. The capacitance values are dependent on
the manufacturerÕs crystal specifications.
Resistivity between XTAL1 or XTAL2 (and the other
pins) should be greater than 10 M .
Z8E001
X1
X2
V
PB0
V
CC
SS
Board Design Example
(Top View)
Z8Plus OTP Microcontroller
Z8E001
23