UPD78F0551MA-FAA-AX Renesas Electronics America, UPD78F0551MA-FAA-AX Datasheet - Page 383

• 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
R01UH0028EJ0400 Rev.4.00
Sep 27, 2010
Remark If the overflow time is set to 2
<When window open period is 25%>
• Overflow time:
• Window close time:
• Window open time:
Window close time
Window open time
2
0 to 2
2
= 3.64 to 3.97 s
17
17
/f
/f
IL
IL
(MAX.) = 2
17
(MIN.) × (1 − 0.25) to 2
/f
IL
(MIN.) × (1 − 0.25) = 0 to 2
17
/33 kHz (MAX.) = 3.97 s
0 to 3.64 s
3.64 to 3.97 s
25%
17
/f
IL
, the window close time and open time are as follows.
17
/f
IL
(MAX.) = 2
17
0 to 2.43 s
2.43 to 3.97 s
/27 kHz (MIN.) × 0.75 = 0 to 3.64 s
Setting of Window Open Period
50%
17
/f
IL
/27 kHz (MIN.) × 0.75 to 2
0 to 1.21 s
1.21 to 3.97 s
CHAPTER 9 WATCHDOG TIMER
75%
None
0 to 3.97 s
100%
17
/33 kHz (MAX.)
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