參數(shù)資料
型號(hào)： UPD17P207GF-001-3B9
元件分類(lèi)： 微控制器/微處理器
英文描述： 4-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PQFP80
封裝： 14 X 20 MM, PLASTIC, QFP-80
文件頁(yè)數(shù)： 13/34頁(yè)
文件大?。?/td> 311K
代理商： UPD17P207GF-001-3B9
PD17P207
18
MAIN SYSTEM CLOCK OSCILLATOR CHARACTERISTICS (TA = –20 to +75
°C, VDD = 2.5 to 5.5 V)
Recommended
Constants
Oscillation
1.0
4
8.0
MHz
frequency (fX)
Note 1
From when VDD
Oscillation
Note 2
reaches the
4
ms
stabilization time
minimum oscillation
voltage
1.0
4
8.0
MHz
VDD = 4.5 to 5.5V
10
ms
30
ms
Notes 1. The oscillation frequency is indicated only to express the oscillator characteristics. Refer to the AC
characteristics for instruction execution time.
2. The oscillation stabilization time is the time required for stabilizing the oscillation after VDD is applied
or the STOP mode is released.
3. The recommended resonators are shown in the table described later.
SUBSYSTEM CLOCK OSCILLATOR CHARACTERISTICS
Recommended
Constants
32.768
kHz
510
s
Caution
When using the main system clock and the subsystem clock generators, in order to avoid wiring
capacitance effects, the following notations must be read and observed for wiring the portion inside
the dotted line in the table:
Wiring length must be minimized.
Do not cross with other signal lines. Do not wire close to a large current line.
Capacitors used in the oscillators must always be grounded to GND potential level. Never ground
the grounding pattern having a large current flow.
Do not take the signal directly out of the oscillator.
In order to reduce the power consumption, the subsystem clock oscillator employs a low amplifi-
cation factor circuit. Because of this, the subsystem clock oscillator is more sensitive to noise than
the main system clock oscillator. Therefore, when using the subsystem clock, wiring must be
carefully planned.
Resonator
Item
Conditions
MIN.
TYP.
MAX.
Unit
Oscillation
frequency (fX)
Note 1
Oscillation
Note 2
stabilization time
Note 3
Ceramic
Resonator
Note 3
Crystal
Resonator
Item
Conditions
MIN.
TYP.
MAX.
Unit
Crystal
Resonator
Oscillation
stabilization time
Oscillation
frequency (fXT)
XIN
XOUT
C2
C1
XIN
XOUT
C2
C1
XIN
XOUT
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