M30840SGP#U5 Renesas Electronics America, M30840SGP#U5 Datasheet - Page 498

• Manufacturer Part Number: M30840SGP#U5
• Description: IC M32C/84 MCU ROMLESS 100LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M32C/80r

Specifications of M30840SGP#U5

• Core Processor: M32C/80
• Core Size: 16/32-Bit
• Speed: 32MHz
• Connectivity: CAN, I²C, IEBus, SIO, UART/USART
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 45
• Program Memory Type: ROMless
• Ram Size: 10K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 10x10b, D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 100-LQFP
• For Use With: R0K330879S001BE - KIT DEV RSK M32C/87R0K330879S000BE - KIT DEV RSK M32C/87
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

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27.5.6.3 Suggestions for Reducing Power Consumption
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The followings are suggestions for reducing power consumption when programming or designing
systems.
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Ports: I/O ports maintains the same state despite the microcomputer entering wait mode or stop
mode. Current flows through active output ports. Feedthrough current flows through input ports in a
high-impedance state. Set unassigned ports as input ports and stabilize electrical potential before
entering wait mode or stop mode.
A/D Converter: If the A/D conversion is not performed, set the VCUT bit in the AD0CON1 register
to "0" (no V
starting the A/D conversion.
D/A Converter: Set the DAi bit (i=0, 1) in the DACON register to "0" (output disabled) and set the
DAi register to "00
Peripheral Function Stop: Set the CM02 bit in the CM0 register while in wait mode to stop unnec-
essary peripheral functions. However, this does not reduce power consumption because the pe-
ripheral function clock (fc32) generating from the sub clock does not stop. When in low-speed mode
and low-power consumption mode, do not enter wait mode when the CM02 bit is set to "1" (periph-
eral clock stops in wait mode).
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REF
Page 475
, 4
connection). Set the VCUT bit to "1" (V
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" when the D/A conversion is not performed.
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REF
27. Precautions (Clock Generation Circuit)
connection) and wait at least 1 s before