參數(shù)資料
型號: MPD78C12AGFA-XXX-3BE
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 15 MHz, MICROCONTROLLER, PQFP64
封裝: 14 X 20 MM, 2.70 MM HEIGHT, PLASTIC, QFP-64
文件頁數(shù): 33/62頁
文件大小: 617K
代理商: MPD78C12AGFA-XXX-3BE
PD78C10A(A), 78C11A(A), 78C12A(A)
37
Oscillation characteristics (TA = –40 to +85
°C, VDD = AVDD + 5.0 V ± 10%, VSS = AVSS = 0 V,
VDD – 0.8 V < AVDD < VDD, 3.4 V < VAREF < AVDD)
Cautions 1. The oscillation circuit should be placed as close to the X1 and X2 pins as possible.
2. Do not place other signal lines in the shaded area.
Note
When using a crystal resonator, the following external capacitance values are recommended.
C1 = C2 = 10 pF
Capacitance (TA = 25
°C, VDD = VSS = 0 V)
Resonator
Ceramic resona-
tor or crystal
resonator(Note)
External clock
Unit
MHz
ns
MAX.
15
20
250
MIN.
4
5.8
4
5.8
0
20
Condition
A/D converter
not used
A/D converter
used
A/D converter
not used
A/D converter
used
Parameter
Oscillation frequency
(fXX)
X1 input frequency (fX)
X1 input rise, fall time
(tr, tf)
X1 input low-level and
high-level width (tL,
tH)
Recommended circuit
Unit
pF
MAX.
10
20
TYP.
MIN.
Symbol
CI
CO
CIO
Parameter
Input capacitance
Output capacitance
I/O capacitance
Condition
fC = 1 MHz
Unmeasured pins returned to 0 V.
X1
X2
HCMOS inverter
X1
X2
C1
C2
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