UPD78F0500AMC-CAB-AX Renesas Electronics America, UPD78F0500AMC-CAB-AX Datasheet - Page 714

• Manufacturer Part Number: UPD78F0500AMC-CAB-AX
• Description: MCU 8BIT 30SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2r

Specifications of UPD78F0500AMC-CAB-AX

• Core Processor: 78K/0
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 23
• 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
• If supply voltage fluctuation is 50 ms or less in vicinity of LVI detection voltage
R01UH0008EJ0401 Rev.4.01
Jul 15, 2010
Note A flowchart is shown on the next page.
No
(TMHE1 = 0
Setting 8-bit timer H1
(to measure 50 ms)
50 ms has passed?
Restarting timer H1
voltage or higher
processing <1>
processing <2>
Figure 25-9. Example of Software Processing After Reset Release (1/2)
(TMIFH1 = 1?)
Clearing WDT
Initialization
Initialization
(LVIF = 0?)
Detection
Reset
No
Yes
TMHE1 = 1)
LVI reset
Yes
; Check the reset source
; Setting of division ratio of system clock,
; f
; The timer counter is cleared and the timer is started.
Initialize the port.
Source: f
Timer starts (TMHE1 = 1).
such as setting of timer or A/D converter
PRS
= Internal high-speed oscillation clock (8.4 MHz (MAX.)) (default)
Where comparison value = 102:
PRS
(8.4 MHz (MAX.))/2
CHAPTER 25 LOW-VOLTAGE DETECTOR
Note
12
,
50 ms
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