UPD78F1144AF1-BA4-A Renesas Electronics America, UPD78F1144AF1-BA4-A Datasheet - Page 651
UPD78F1144AF1-BA4-A
Manufacturer Part Number
UPD78F1144AF1-BA4-A
Description
MCU 16BIT 78K0R/KX3 64-FBGA
Manufacturer
Renesas Electronics America
Series
78K0R/Kx3r
Datasheet
1.UPD78F1142AGA-HAB-AX.pdf
(880 pages)
Specifications of UPD78F1144AF1-BA4-A
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
50
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
8K 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
-
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- Download datasheet (6Mb)
20.5 Cautions for Low-Voltage Detector
(1) Measures method when supply voltage (V
voltage (V
In a system where the supply voltage (V
voltage (V
Operation example 1: When used as reset
Remark If bit 2 (LVISEL) of the low voltage detection register (LVIM) is set to “1”, the meanings of the above
<Action>
software counter that uses a timer, and then initialize the ports (see Figure 20-11).
After releasing the reset signal, wait for the supply voltage fluctuation period of each system by means of a
The system may be repeatedly reset and released from the reset status.
The time from reset release through microcontroller operation start can be set arbitrarily by the following
action.
LVI
words change as follows.
• Supply voltage (V
• Detection voltage (V
LVI
), the operation is as follows depending on how the low-voltage detector is used.
)
DD
)
LVI
CHAPTER 20 LOW-VOLTAGE DETECTOR
) → Detection voltage (V
→ Input voltage from external input pin (EXLVI)
User’s Manual U17854EJ9V0UD
DD
) fluctuates for a certain period in the vicinity of the LVI detection
DD
) frequently fluctuates in the vicinity of the LVI detection
EXLVI
= 1.21 V)
649
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