UPD78F9234MC-5A4-A Renesas Electronics America, UPD78F9234MC-5A4-A Datasheet - Page 245

• 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: -

(b) Release by reset signal generation
System clock
When the reset signal is generated, HALT mode is released, and then, as in the case with a normal reset
operation, the program is executed after branching to the reset vector address.
Note Operation is stopped (277 s (MIN.), 544 s (TYP.), 1.075 ms (MAX.)) because the option byte is
Note Operation is stopped (276 s (MIN.), 544 s (TYP.), 1.074 ms (MAX.)) because the option byte is
Remark f
Reset signal
System clock
Reset signal
CPU status
CPU status
oscillation
(1) When CPU clock is high-speed internal oscillation clock or external input clock
oscillation
referenced.
referenced.
Maskable interrupt request
Reset signal generation
: don’t care
Table 14-3. Operation in Response to Interrupt Request in HALT Mode
X
: System clock oscillation frequency
Release Source
Figure 14-3. HALT Mode Release by Reset Signal Generation
Operation
Operation
(2) When CPU clock is crystal/ceramic oscillation clock
mode
mode
instruction
instruction
HALT
HALT
Oscillates
Oscillates
CHAPTER 14 STANDBY FUNCTION
HALT mode
HALT mode
User’s Manual U17446EJ5V0UD
MK
0
0
1
IE
0
1
period
Oscillation stops
Reset
period
Reset
Oscillation stops
Next address instruction execution
Interrupt servicing execution
HALT mode held
Reset processing
Operation
stops
Operation
stops
Note
Oscillation stabilization time
Operation
Note
stabilization waits
(2
Oscillation
10
/f
Operation mode
Oscillates
X
to 2
Oscillates
17
/f
X
)
Operation
mode
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