UPD78F1506GF-GAT-AX Renesas Electronics America, UPD78F1506GF-GAT-AX Datasheet - Page 828

• Manufacturer Part Number: UPD78F1506GF-GAT-AX
• Description: MCU 16BIT 78K0R/LX3 128-LQFP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Lx3r

Specifications of UPD78F1506GF-GAT-AX

• Core Processor: 78K/0R
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: DMA, LCD, LVD, POR, PWM, WDT
• Number Of I /o: 78
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 12x12b, D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

78K0R/Lx3
24.5 Cautions for Low-Voltage Detector
(1) Measures method when supply voltage (V
R01UH0004EJ0401 Rev.4.01
Jul 2, 2010
(V
In a system where the supply voltage (V
(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 words
<Action>
software counter that uses a timer, and then initialize the ports (see Figure 24-11).
LVI
LVI
After releasing the reset signal, wait for the supply voltage fluctuation period of each system by means of a
), the operation is as follows depending on how the low-voltage detector is used.
)
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.
change as follows.
• Supply voltage (V
• Detection voltage (V
DD
)
LVI
) → Detection voltage (V
→ Input voltage from external input pin (EXLVI)
DD
) fluctuates for a certain period in the vicinity of the LVI detection voltage
DD
) frequently fluctuates in the vicinity of the LVI detection voltage
EXLVI
= 1.21 V)
CHAPTER 24 LOW-VOLTAGE DETECTOR
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