UPD78F0551MA-FAA-AX Renesas Electronics America, UPD78F0551MA-FAA-AX Datasheet - Page 242

• Manufacturer Part Number: UPD78F0551MA-FAA-AX
• Description: MCU 8BIT 16-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2-Lr

Specifications of UPD78F0551MA-FAA-AX

• Core Processor: 78K/0
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: I²C, LIN, UART/USART
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 9
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

78K0/Kx2-L
5.6.4 Example of controlling internal low-speed oscillation clock
(30 kHz (TYP.)) if the watchdog timer operation has been enabled by the option byte.
R01UH0028EJ0400 Rev.4.00
Sep 27, 2010
The internal low-speed oscillation clock cannot be used as the CPU clock.
Only the following peripheral hardware can operate with this clock.
• Watchdog timer
• 8-bit timer H1 (if f
In addition, the following operation modes can be selected by the option byte.
• Internal low-speed oscillator cannot be stopped
• Internal low-speed oscillator can be stopped by software
The internal low-speed oscillator automatically starts oscillation after a reset release, and the watchdog timer is driven
(1) Example of setting procedure when stopping the internal low-speed oscillation clock
(2) Example of setting procedure when restarting oscillation of the internal low-speed oscillation clock
Caution If “Internal low-speed oscillator cannot be stopped” is selected by the option byte, oscillation of the
<1> Setting LSRSTOP to 1 (RCM register)
<1> Clearing LSRSTOP to 0 (RCM register)
When LSRSTOP is set to 1, the internal low-speed oscillation clock is stopped.
When LSRSTOP is cleared to 0, the internal low-speed oscillation clock is restarted.
internal low-speed oscillation clock cannot be controlled.
IL
is selected as the count clock)
CHAPTER 5 CLOCK GENERATOR
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