M30803FGFP#U5 Renesas Electronics America, M30803FGFP#U5 Datasheet - Page 56
M30803FGFP#U5
Manufacturer Part Number
M30803FGFP#U5
Description
MCU 3/5V 256K PB-FREE 100-QFP
Manufacturer
Renesas Electronics America
Series
M16C™ M16C/80r
Datasheet
1.M30803FGGPU3.pdf
(360 pages)
Specifications of M30803FGFP#U5
Core Processor
M16C/80
Core Size
16-Bit
Speed
20MHz
Connectivity
SIO, UART/USART
Peripherals
DMA, PWM, WDT
Number Of I /o
85
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
20K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 10x10b, D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 85°C
Package / Case
100-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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M
R
R
8. Clock Generating Circuit
8.1 Example of oscillator circuit
e
E
1
v
Table 8.1 Main clock and sub clock generating circuits
Figure 8.1 Examples of main clock
Figure 8.2 Examples of sub clock
J
6
1 .
0
The clock generating circuit contains two oscillator circuits that supply the operating clock sources to the
CPU and internal peripheral units.
Use of clock
Usable oscillator
Pins to connect oscillator
Oscillation stop/restart function
Oscillator status immediately after reset
Other
C
9
0 .
8 /
Figure 8.1 shows some examples of the main clock circuit, one using an oscillator connected to the
circuit, and the other one using an externally derived clock for input. Figure 8.2 shows some examples of
sub clock circuits, one using an oscillator connected to the circuit, and the other one using an externally
derived clock for input. Circuit constants in Figures 8.1 and 8.2 vary with each oscillator used. Use the
values recommended by the manufacturer of your oscillator.
B
0
0
0
1
A
G
8
u
7
o r
. g
0 -
u
1
Note: Insert a damping resistance if required. The resistance will vary depending on the oscillator and the oscillation
Note: Insert a damping resistance if required. The resistance will vary depending on the oscillator and the oscillation
0
p
0
, 2
0
(Built-in feedback resistance)
(Built-in feedback resistance)
X
X
2
IN
drive capacity setting. Use the value recommended by the maker of the oscillator.
When the oscillation drive capacity is set to low, check that oscillation is stable.
Insert a feedback resistance between X
CIN
drive capacity setting. Use the value recommended by the maker of the oscillator.
When the oscillation drive capacity is set to low, check that oscillation is stable.
Insert a feedback resistance between X
0
0
Microcomputer
Microcomputer
C
5
C
IN
CIN
Page 43
X
X
COUT
f o
OUT
(Note)
R
3
C
(Note)
R
2
d
C
OUT
9
Cd
COUT
• CPU’s operating clock source
• Internal peripheral units’
Ceramic or crystal oscillator
X
Available
Oscillating
Externally derived clock can be input
operating clock source
IN
Main clock generating circuit
, X
OUT
IN
and X
CIN
and X
OUT
when an oscillation manufacture required.
COUT
when an oscillation manufacture required.
Vcc
Vss
(Built-in feedback resistance)
Externally derived clock
X
• CPU’s operating clock source
• Timer A/B’s count clock
Crystal oscillator
X
Available
Stopped
IN
Vcc
Vss
(Built-in feedback resistance)
Microcomputer
C
Sub clock generating circuit
source
Externally derived clock
IN
X
8. Clock Generating Circuit
, X
CIN
Microcomputer
COUT
X
Open
OUT
X
Open
COUT
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