M30280F6HP#U5 Renesas Electronics America, M30280F6HP#U5 Datasheet - Page 73
![no-image](/images/manufacturer_photos/0/5/560/renesas_electronics_america_sml.jpg)
M30280F6HP#U5
Manufacturer Part Number
M30280F6HP#U5
Description
IC M16C MCU FLASH 48K 80LQFP
Manufacturer
Renesas Electronics America
Series
M16C™ M16C/Tiny/28r
Specifications of M30280F6HP#U5
Core Processor
M16C/60
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, IEBus, SIO, UART/USART
Peripherals
DMA, POR, PWM, Voltage Detect, WDT
Number Of I /o
71
Program Memory Size
48KB (48K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 24x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 85°C
Package / Case
80-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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M
R
R
7.1 Main Clock
e
E
1
. v
Figure 7.8 Examples of Main Clock Connection Circuit
J
6
0
The following describes the clocks generated by the clock generation circuit.
The main clock is generated by the main clock oscillation circuit. This clock is used as the clock source for
the CPU and peripheral function clocks. The main clock oscillator circuit is configured by connecting a
resonator between the X
which is disconnected from the oscillator circuit during stop mode in order to reduce the amount of power
consumed in the chip. The main clock oscillator circuit may also be configured by feeding an externally
generated clock to the X
The main clock oscillates after reset. The power consumption in the chip can be reduced by setting the
CM05 bit in the CM0 register to “1” (main clock oscillator circuit turned off) after switching the clock source
for the CPU clock to a sub clock or on-chip oscillator clock. In this case, X
because the internal feedback resistor remains on, X
During stop mode, all clocks including the main clock are turned off. Refer to 7.6 power control.
If the main clock is not used, it is recommended to connect the XIN pin to VCC to reduce power consump-
tion during reset.
C
2
9
0 .
2 /
B
0
0
8
0
4
G
J
7
a
o r
0 -
. n
(Built-in Feedback Resistor)
u
2
3
p
0
, 1
0
(
M
Microcomputer
2
0
NOTE:
1
0
6
7
1. Insert a damping resistor if required. Resistance value varies depending on the oscillator setting.
2. The external clock should not be stopped when it is connected to the X
C
Use resistance value recommended by the oscillator manufacturer. If the oscillator manufacturer
recommends that a feedback resistor be added to the chip externally, insert a feedback resistor
between X
selected as the CPU clock.
2 /
X
, 8
V
OUT
page 51
X
SS
IN
M
IN
IN
1
pin. Figure 7.8 shows the examples of main clock connection circuit.
6
IN
and X
Oscillator
C
and X
Rd
f o
2 /
(1)
8
3
) B
OUT
8
OUT
5
.
pins. The main clock oscillator circuit contains a feedback resistor,
C
C
OUT
IN
(Built-in Feedback Resistor)
IN
Microcomputer
is pulled “H” to X
X
OUT
X
IN
Open
V
V
CC
SS
IN
External Clock
pin and the main clock is
OUT
via the feedback resistor.
OUT
7. Clock Generation Circuit
goes “H”. Furthermore,
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