UPD78F0552MA-FAA-AX Renesas Electronics America, UPD78F0552MA-FAA-AX Datasheet - Page 704
UPD78F0552MA-FAA-AX
Manufacturer Part Number
UPD78F0552MA-FAA-AX
Description
MCU 8BIT 16-SSOP
Manufacturer
Renesas Electronics America
Series
78K0/Kx2-Lr
Datasheet
1.UPD78F0551MA-FAA-AX.pdf
(822 pages)
Specifications of UPD78F0552MA-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
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
768 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
-
- Current page: 704 of 822
- Download datasheet (6Mb)
78K0/Kx2-L
• Checking reset source
R01UH0028EJ0400 Rev.4.00
Sep 27, 2010
Operation example 2: When used as interrupt
Remark If bit 2 (LVISEL) of the low voltage detection register (LVIM) is set to “1”, the meanings of the above words
<Action>
“supply voltage (V
of the LVI interrupt by using bit 0 (LVIF) of the low-voltage detection register (LVIM). Clear bit 1 (LVIIF) of interrupt
request flag register 0L (IF0L) to 0.
after waiting for the supply voltage fluctuation time.
Confirm that “supply voltage (V
For a system with a long supply voltage fluctuation period near the LVI detection voltage, take the above action
Interrupt requests may be generated frequently.
Take the following action.
change as follows.
• Supply voltage (V
• Detection voltage (V
Figure 22-11. Example of Software Processing After Reset Release (2/2)
DD
) < LVI detection voltage (V
DD
Reset processing by
low-voltage detector
)
Check reset source
LVI
WDTRF of RESF
LVIRF of RESF
) → Detection voltage (V
register = 1?
register = 1?
→ Input voltage from external input pin (EXLVI)
DD
) ≥ LVI detection voltage (V
No
Yes
LVI
)” when detecting the rising edge of V
Yes
No
EXLVI
Power-on-clear/external
Reset processing by
= 1.21 V)
reset generated
watchdog timer
CHAPTER 22 LOW-VOLTAGE DETECTOR
LVI
)” when detecting the falling edge of V
DD
, in the servicing routine
DD
, or
690
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