M30803FGFP#U5 Renesas Electronics America, M30803FGFP#U5 Datasheet - Page 66
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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8.7 Power Saving
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In Power Save modes, the CPU and oscillator stop and the operating clock is slowed to minimize power
dissipation by the CPU. The following outlines the Power Save modes.
There are three power save modes.
(1) Normal operating mode
(2) Wait mode
(3) Stop mode
C
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0 .
8 /
CPU operation is halted in this mode. The oscillator continues to run.
All oscillators stop in this mode. The CPU and internal peripheral functions all stop. Of all 3 power saving
modes, power savings are greatest in this mode.
Figure 8.7 shows the clock transition between each of the three modes, (1), (2), and (3).
B
0
• High-speed mode
• Medium-speed mode
• Low-speed mode
• Low power-dissipation mode
0
0
1
In this mode, one main clock cycle forms BCLK. The CPU operates on the selected internal clock. The
peripheral functions operate on the clocks specified for each respective function.
In this mode, the main clock is divided into 2, 3, 4, 6, 8, 10, 12, 14, or 16 to form BCLK. The CPU
operates on the selected internal clock. The peripheral functions operated on the clocks specified for
each respective function.
In this mode, fc forms BCLK. The CPU operates on the fc clock. fc is the clock supplied by the
subclock. The peripheral functions operate on the clocks specified for each respective function.
This mode is selected when the main clock is stopped from low-speed mode. The CPU operates on
the fc clock. fc is the clock supplied by the subclock. Only the peripheral functions for which the
subclock was selected as the count source continue to run.
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Page 53
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8. Clock Generating Circuit
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