UPD78F1146AGB-GAH-AX Renesas Electronics America, UPD78F1146AGB-GAH-AX Datasheet - Page 633

• Manufacturer Part Number: UPD78F1146AGB-GAH-AX
• Description: MCU 16BIT 78K0R/KX3 64-LQFP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Kx3r

Specifications of UPD78F1146AGB-GAH-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: 50
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 12K 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: -

20.2 Configuration of Low-Voltage Detector
20.3 Registers Controlling Low-Voltage Detector
(1) Low-voltage detection register (LVIM)
V
DD
The block diagram of the low-voltage detector is shown in Figure 20-1.
The low-voltage detector is controlled by the following registers.
• Low-voltage detection register (LVIM)
• Low-voltage detection level select register (LVIS)
• Port mode register 12 (PM12)
This register sets low-voltage detection and the operation mode.
This register can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation clears this register to 00H.
Low-voltage detection level
select register (LVIS)
EXLVI/P120/
INTP0
Figure 20-1. Block Diagram of Low-Voltage Detector
CHAPTER 20 LOW-VOLTAGE DETECTOR
User’s Manual U17854EJ9V0UD
Reference
voltage
source
Internal bus
N-ch
+
−
V
DD
Low-voltage detection register
(LVIM)
Internal reset signal
INTLVI
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