UPD70F3451GC-UBT-A Renesas Electronics America, UPD70F3451GC-UBT-A Datasheet - Page 1049

• Manufacturer Part Number: UPD70F3451GC-UBT-A
• Description: MCU 32BIT 128KB FLASH 80LQFP
• Manufacturer: Renesas Electronics America
• Series: V850E/Ix3r

Specifications of UPD70F3451GC-UBT-A

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 64MHz
• Connectivity: CSI, I²C, UART/USART
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 44
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3.5 V ~ 5.5 V
• Data Converters: A/D 10x12b, 4x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

24.1 Function
24.2 Configuration
RESET
Functions of the power-on-clear circuit (POC) are shown below.
• Generates a reset signal (POCRES) upon power application.
• Compares the supply voltage (V
Remark
The block diagram is shown below.
supply voltage drops below the detection voltage (detection voltage (V
The V850E/IF3 and V850E/IG3 have the reset source flag register (RESF) that indicates generation of a
reset signal (WDTRES) by watchdog timer overflow and a reset signal (LVIRES) by low-voltage detector
(LVI).
The RESF register is not cleared to 00H when a reset signal (WDTRES or LVIRES) is generated, and its
flag corresponding to the reset source is set to 1.
The RESF register is cleared (00H) when a reset signal (POCRES) by power-on-clear circuit (POC) is
generated.
For details of the RESF register, see CHAPTER 22 RESET FUNCTIONS.
V
DD0
, V
DD1
Figure 24-1. Block Diagram of Power-on-Clear Circuit
CHAPTER 24 POWER-ON CLEAR CIRCUIT
voltage source
Detection
DD0
(V
POC0
, V
)
DD1
User’s Manual U18279EJ3V0UD
) and detection voltage (V
POC0
POC0
), and generates a reset signal when the
): 3.7 V ±0.2 V).
Internal reset
signal
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