UPD78F1001GB-GAF-AX Renesas Electronics America, UPD78F1001GB-GAF-AX Datasheet - Page 939
UPD78F1001GB-GAF-AX
Manufacturer Part Number
UPD78F1001GB-GAF-AX
Description
MCU 16BIT 78K0R/KX3-L 44-LQFP
Manufacturer
Renesas Electronics America
Series
78K0R/Kx3-Lr
Datasheet
1.UPD78F1000GB-GAF-AX.pdf
(1171 pages)
Specifications of UPD78F1001GB-GAF-AX
Core Processor
78K/0R
Core Size
16-Bit
Speed
20MHz
Connectivity
3-Wire SIO, I²C, LIN, UART/USART
Peripherals
DMA, LVD, POR, PWM, WDT
Number Of I /o
33
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 10x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UPD78F1001GB-GAF-AX
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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78K0R/Kx3-L
23.1 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 the low-
voltage detection register (LVIM)).
occurs. For details of the RESF register, see CHAPTER 21 RESET FUNCTION.
R01UH0106EJ0300 Rev.3.00
Oct 01, 2010
Selects reset (LVIMD = 1).
Generates an internal reset
signal when V
releases the reset signal when
V
DD
The low-voltage detector (LVI) has the following functions.
• The LVI circuit compares the supply voltage (V
• The low-voltage detector (LVI) can be set to ON by an option byte by default. If it is set to ON to raise the power
• The supply voltage (V
• A reset or an interrupt can be selected to be generated after detection by software.
• Detection levels (V
• Operable in STOP mode.
The reset and interrupt signals are generated as follows depending on selection by software.
Remark LVISEL bit: Bit 2 of the 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
internal interrupt signal.
supply from the POC detection voltage (V
the supply voltage (V
when the supply voltage (V
software.
Selection of Level Detection of Supply Voltage (V
LVI
.
DD
LVIMD bit:
< V
LVI
and
(LVISEL = 0)
LVI
,16 levels) of supply voltage can be changed by software.
Bit 1 of LVIM
DD
DD
) < detection voltage (V
) or the input voltage from the external input pin (EXLVI) can be selected to be detected by
Selects interrupt (LVIMD = 0).
Generates an internal interrupt
signal when V
than V
V
(V
DD
DD
DD
becomes V
≥ V
CHAPTER 23 LOW-VOLTAGE DETECTOR
) < detection voltage (V
LVI
LVI
(V
).
DD
DD
< V
LVI
drops lower
LVI
or higher
) or when
POR
DD
)
= 1.61 V (TYP.)) or lower, the internal reset signal is generated when
LVI
DD
= 2.07 V ±0.2 V). After that, the internal reset signal is generated
) with the detection voltage (V
LVI
Selects reset (LVIMD = 1).
Generates an internal reset
signal when EXLVI < V
and releases the reset signal
when EXLVI ≥ V
= 2.07 V ±0.1 V).
EXLVI
Selection Level Detection of Input Voltage from
= 1.21 V ±0.1 V), and generates an internal reset or
External Input Pin (EXLVI) (LVISEL = 1)
CHAPTER 23 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 <
939
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