UPD78F1001GA-HAA-AX Renesas Electronics America, UPD78F1001GA-HAA-AX Datasheet - Page 958

• Manufacturer Part Number: UPD78F1001GA-HAA-AX
• Description: MCU 16BIT 78K0R/KX3-L 44-TQFP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Kx3-Lr

Specifications of UPD78F1001GA-HAA-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: 36
• 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: -

78K0R/Kx3-L
23.5 Cautions for Low-Voltage Detector
(1) Measures method when supply voltage (V
R01UH0106EJ0300 Rev.3.00
Oct 01, 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
LVI
LVI
<Action>
software counter that uses a timer, and then initialize the ports (see Figure 23-11).
), the operation is as follows depending on how the low-voltage detector is used.
)
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.
change as follows.
• Supply voltage (V
• Detection voltage (V
DD
)
LVI
) → Detection voltage (V
→ Input voltage from the 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 23 LOW-VOLTAGE DETECTOR
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