UPD78F0551MA-FAA-AX Renesas Electronics America, UPD78F0551MA-FAA-AX Datasheet - Page 689
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UPD78F0551MA-FAA-AX
Manufacturer Part Number
UPD78F0551MA-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 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
-
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78K0/Kx2-L
(2) Low-voltage detection level select register (LVIS)
R01UH0028EJ0400 Rev.4.00
Sep 27, 2010
Address: FFBFH
Symbol
This register selects the low-voltage detection level.
This register can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation input sets this register to 00H.
Note
Cautions 1. Be sure to clear bits 4 to 7 to 0.
LVIS
The reset value changes depending on the reset source.
holds the current value. The value of this register is reset to “00H” by other resets.
If the LVIS register is reset by LVI resets (except resets by the LVI default start function), it is not reset but
2. Do not change the value of LVIS during LVI operation.
3. When an input voltage from the external input pin (EXLVI) is detected, the detection voltage
LVIS3
7
0
(V
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Figure 22-3. Format of Low-Voltage Detection Level Select Register (LVIS)
EXLVI
After reset: 00H
= 1.21 V (TYP.)) is fixed. Therefore, setting of LVIS is not necessary.
LVIS2
6
0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
Note
LVIS1
5
0
R/W
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
4
0
LVIS0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
LVIS3
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
LVI0
LVI1
LVI2
LVI3
LVI4
LVI5
LVI6
LVI7
LVI8
LVI9
LVI10
LVI11
LVI12
LVI13
LVI14
LVI15
3
(4.22 ±0.1 V)
(4.07 ±0.1 V)
(3.92 ±0.1 V)
(3.76 ±0.1 V)
(3.61 ±0.1 V)
(3.45 ±0.1 V)
(3.30 ±0.1 V)
(3.15 ±0.1 V)
(2.99 ±0.1 V)
(2.84 ±0.1 V)
(2.68 ±0.1 V)
(2.53 ±0.1 V)
(2.38 ±0.1 V)
(2.22 ±0.1 V)
(2.07 ±0.07 V)
(1.91 ±0.1 V)
CHAPTER 22 LOW-VOLTAGE DETECTOR
LVIS2
2
Detection level
LVIS1
1
LVIS0
0
675
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