UPD78F0535GB(T)-UEU-A NEC, UPD78F0535GB(T)-UEU-A Datasheet - Page 154
UPD78F0535GB(T)-UEU-A
Manufacturer Part Number
UPD78F0535GB(T)-UEU-A
Description
8BIT MCU, 60K FLASH, 3KB RAM, LQFP
Manufacturer
NEC
Datasheet
1.UPD78F0535GBT-UEU-A.pdf
(773 pages)
Specifications of UPD78F0535GB(T)-UEU-A
Controller Family/series
UPD78
No. Of I/o's
55
Ram Memory Size
3KB
Cpu Speed
20MHz
No. Of Timers
8
No. Of Pwm
RoHS Compliant
Core Size
8bit
Program Memory Size
60KB
Oscillator Type
External, Internal
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CHAPTER 6 CLOCK GENERATOR
Figure 6-11. Examples of Incorrect Resonator Connection (2/2)
(c) Wiring near high alternating current
(d) Current flowing through ground line of oscillator
(potential at points A, B, and C fluctuates)
V
DD
Pmn
V
X1
X2
SS
V
X1
X2
SS
A
B
C
High current
(e) Signals are fetched
V
X1
X2
SS
Remark When using the subsystem clock, replace X1 and X2 with XT1 and XT2, respectively. Also, insert
resistors in series on the XT2 side.
Caution
2. When X2 and XT1 are wired in parallel, the crosstalk noise of X2 may increase with XT1,
resulting in malfunctioning.
154
User’s Manual U17260EJ6V0UD
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