UPD78F9234MC-5A4-A Renesas Electronics America, UPD78F9234MC-5A4-A Datasheet - Page 164

• Manufacturer Part Number: UPD78F9234MC-5A4-A
• Description: MCU 8BIT 8KB FLASH 30PIN
• Manufacturer: Renesas Electronics America
• Series: 78K0S/Kx1+r

Specifications of UPD78F9234MC-5A4-A

• Core Processor: 78K0S
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: LIN, UART/USART
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2 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: -

9.4.4
the watchdog timer is the system clock (f
counting is started again using the operation clock before the operation was stopped. At this time, the counter is not
cleared to 0 but holds its value.
162
The watchdog timer stops counting during HALT instruction execution regardless of whether the operation clock of
CPU operation
Watchdog timer
Watchdog timer operation in HALT mode (when “low-speed internal oscillator can be stopped by
software” is selected by option byte)
f
X
or f
f
CPU
RL
Normal operation
Operating
Operation stopped
HALT
Figure 9-8. Operation in HALT Mode
X
) or low-speed internal oscillation clock (f
CHAPTER 9 WATCHDOG TIMER
User’s Manual U17446EJ5V0UD
Normal operation
Operating
RL
). After HALT mode is released,