参数资料
型号: M38D28G8-XXXHP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 6.25 MHz, MICROCONTROLLER, PQFP64
封装: 10X 10 MM, 0.50 MM PITCH, PLASTIC, LQFP-64
文件页数: 11/136页
文件大小: 2856K
代理商: M38D28G8-XXXHP
Rev.3.02
Apr 10, 2008
Page 108 of 131
REJ03B0177-0302
38D2 Group
NOTES:
1. Relationship between system clock
φ frequency and power source voltage is shown in the graph below.
2. When the A/D converter is used, refer to the recommended operating conditions of the A/D converter.
3. 12.5 MHz
< f(XIN) ≤ 16 MHz is not available in the frequency/2 mode.
4. The oscillation start voltage and the oscillation start time differ depending on factors such as the oscillator, circuit constants, and
operating temperature range. Note that oscillation start may be particularly difficult at low voltage when using a high-frequency
oscillator.
5. When using the microcomputer in low-speed mode, set the clock input oscillation frequency on condition that f(XCIN) < f(XIN)/3.
<System clock
φ frequency>
<Main clock XIN frequency>
Table 37 Recommended operating conditions (4)
(VCC = 2.7 to 5.5 V, VSS = 0 V, Ta =
20 to 85°C, unless otherwise noted)
Symbol
Parameter
Conditions
Limits
Unit
Min.
Typ.
Max.
f(CNTR0)
f(CNTR1)
Timer X and Timer Y
Input frequency (duty cycle 50%)
4.5V
≤ VCC ≤ 5.5V
6.25
MHz
4.0V
≤ VCC < 4.5V
2
×Vcc4MHz
2.7V
≤ VCC < 4.0V
Vcc
MHz
f(Tclk)
Timer X, Timer Y, Timer 1, Timer 2,
Timer 3, Timer 4 clock input frequency
(Count source frequency of each timer)
4.5V
≤ VCC ≤ 5.5V
16
MHz
4.0V
≤ VCC < 4.5V
4
×Vcc8MHz
2.7V
≤ VCC < 4.0V
2
×Vcc
MHz
f(
φ)
System clock
φ frequency (1)
4.5V
≤ VCC ≤ 5.5V
6.25
MHz
4.0V
≤ VCC < 4.5V
4
MHz
2.7V
≤ VCC < 4.0V
Vcc
MHz
f(XIN)
Main clock input frequency
(duty cycle 50%) (2)(3)
4.5V
≤ VCC ≤ 5.5V
1.0
16
MHz
2.7V
≤ VCC < 4.5V
1.0
8.0
MHz
f(XCIN)
Sub-clock oscillation frequency (duty cycle 50%) (4)(5)
32.768
80
kHz
4.0
4.5
5.5
2.7
4.0
6.25
[MHz]
[V]
S
ys
te
m
cl
o
ck
φf
req
ue
ncy
Power source voltage
0
2.7
4.5
5.5
8.0
[MHz]
[V]
M
a
in
c
lo
ck
X
IN
f
re
que
nc
y
Power source voltage
0
1.0
16
FLASH MEMORY VERSION
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