FM3 MB9B500 Series - Microcontrollers - Fujitsu
FM3 MB9B500 Series - Microcontrollers - Fujitsu
FM3 MB9B500 Series - Microcontrollers - Fujitsu
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
<strong>MB9B500</strong> <strong>Series</strong><br />
AC Characteristics<br />
The following tables show the AC characteristics.<br />
(1) Main Clock Input Characteristics<br />
(Vcc = 2.7V to 5.5V, Vss = 0V Ta = - 40C to + 85C)<br />
Parameter Symbol<br />
Value<br />
Pin<br />
name Conditions Min Max<br />
Unit Remarks<br />
Input frequency FCH<br />
Vcc 4.5V<br />
Vcc 4.5V<br />
Vcc 4.5V<br />
Vcc 4.5V<br />
4<br />
4<br />
4<br />
4<br />
48<br />
20<br />
48<br />
20<br />
MHz<br />
MHz<br />
When crystal oscillator<br />
is connected<br />
When using external<br />
clock<br />
Input clock cycle tCYLH<br />
X0<br />
X1<br />
Vcc 4.5V<br />
Vcc 4.5V<br />
20.83<br />
50<br />
250<br />
250<br />
ns<br />
When using external<br />
clock<br />
Input clock pulse<br />
width<br />
-<br />
PWH/tCYLH<br />
PWL/tCYLH<br />
45 55 %<br />
When using external<br />
clock<br />
Input clock rise<br />
time and fall time<br />
tCF<br />
tCR<br />
- - 5 ns<br />
When using external<br />
clock<br />
FCC - - - 80 MHz CPU/AHB bus clock<br />
Internal operating<br />
FCP0 - - - 40 MHz<br />
Peripheral bus clock 0<br />
(APB0)<br />
clock<br />
frequency<br />
FCP1 - - - 40 MHz<br />
Peripheral bus clock 1<br />
(APB1)<br />
FCP2 - - - 40 MHz<br />
Peripheral bus clock 1<br />
(APB2)<br />
tCYCC - - 12.5 - ns CPU/AHB bus clock<br />
Internal operating<br />
tCYCP0 - - 25 - ns<br />
Peripheral bus clock 0<br />
(APB0)<br />
clock<br />
cycle time<br />
tCYCP1 - - 25 - ns<br />
Peripheral bus clock 1<br />
(APB1)<br />
tCYCP2 - - 25 - ns<br />
Peripheral bus clock 1<br />
(APB2)<br />
X0<br />
t CYLH<br />
0.8×Vcc 0.8×Vcc 0.8×Vcc<br />
PWH<br />
tCF<br />
0.2×Vcc<br />
PWL<br />
tCR<br />
0.2×Vcc<br />
70 DS706-00010-1v0-E
Change language