UPD78F0513AGB-GAF-AX Renesas Electronics America, UPD78F0513AGB-GAF-AX Datasheet - Page 698

• Manufacturer Part Number: UPD78F0513AGB-GAF-AX
• Description: MCU 8BIT 44-LQFP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2r

Specifications of UPD78F0513AGB-GAF-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: 37
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

78K0/Kx2
25.1 Functions of Low-Voltage Detector
more than or less than the detection level can be checked by reading the low-voltage detection flag (LVIF: bit 0 of LVIM).
occurs. For details of RESF, see CHAPTER 23 RESET FUNCTION.
R01UH0008EJ0401 Rev.4.01
Jul 15, 2010
Selects reset (LVIMD = 1).
Generates an internal reset
signal when V
releases the reset signal when
V
DD
The low-voltage detector (LVI) is mounted onto all 78K0/Kx2 microcontroller products.
The low-voltage detector has the following functions.
• The LVI circuit compares the supply voltage (V
• The supply voltage (V
• Reset or interrupt function can be selected by software.
• Detection levels (16 levels
• Operable in STOP mode.
Note Standard products and (A) grade products: 16 levels
The reset and interrupt signals are generated as follows depending on selection by software.
Remark LVISEL: Bit 2 of low-voltage detection register (LVIM)
While the low-voltage detector is operating, whether the supply voltage or the input voltage from an external input pin is
When the low-voltage detector is used to reset, bit 0 (LVIRF) of the reset control flag register (RESF) is set to 1 if reset
≥ V
external input pin (EXLVI) with the detection voltage (V
or internal interrupt signal.
Selection of Level Detection of Supply Voltage (V
LVI
.
(A2) grade products:
DD
LVIMD: Bit 1 of LVIM
< V
LVI
and
(LVISEL = 0)
DD
) or input voltage from an external input pin (EXLVI) can be selected by software.
Selects interrupt (LVIMD = 0).
Generates an internal interrupt
signal when V
than V
V
(V
DD
DD
Note
becomes V
≥ V
CHAPTER 25 LOW-VOLTAGE DETECTOR
) of supply voltage can be changed by software.
LVI
LVI
(V
).
DD
DD
< V
LVI
drops lower
LVI
or higher
) or when
DD
)
10 levels
DD
) with the detection voltage (V
Selects reset (LVIMD = 1).
Generates an internal reset
signal when EXLVI < V
and releases the reset signal
when EXLVI ≥ V
EXLVI
= 1.21 V (TYP.): fixed), and generates an internal reset
Selection Level Detection of Input Voltage from
External Input Pin (EXLVI) (LVISEL = 1)
CHAPTER 25 LOW-VOLTAGE DETECTOR
EXLVI
.
EXLVI
LVI
Selects interrupt (LVIMD = 0).
Generates an internal interrupt
signal when EXLVI drops
lower than V
V
becomes V
(EXLVI ≥ V
EXLVI
) or the input voltage from an
) or when EXLVI
EXLVI
EXLVI
EXLVI
).
or higher
(EXLVI <
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