UPD78F9222MC-5A4-A Renesas Electronics America, UPD78F9222MC-5A4-A Datasheet - Page 257

• Manufacturer Part Number: UPD78F9222MC-5A4-A
• Description: MCU 8BIT 4KB FLASH 20PIN
• Manufacturer: Renesas Electronics America
• Series: 78K0S/Kx1+r

Specifications of UPD78F9222MC-5A4-A

• Core Processor: 78K0S
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: LIN, UART/USART
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 15
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2 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: -

16.1 Functions of Low-Voltage Detector
reset occurs. For details of RESF, refer to CHAPTER 14 RESET FUNCTION.
16.2 Configuration of Low-Voltage Detector
The low-voltage detector (LVI) has following functions.
When the low-voltage detector is used to reset, bit 0 (LVIRF) of the reset control flag register (RESF) is set to 1 if
The block diagram of the low-voltage detector is shown in Figure 16-1.
V
DD
Compares supply voltage (V
internal reset signal when V
Detection levels (ten levels) of supply voltage can be changed by software.
Interrupt or reset function can be selected by software.
Operable in STOP mode.
Low-voltage detection
level select register (LVIS)
Figure 16-1. Block Diagram of Low-Voltage Detector
CHAPTER 16 LOW-VOLTAGE DETECTOR
DD
voltage source
DD
< V
Reference
) and detection voltage (V
LVI
.
N-ch
V
User’s Manual U16898EJ6V0UD
DD
LVI
Low-voltage detect
register (LVIM)
), and generates an internal interrupt signal or
INTLVI
Internal reset signal
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