R5F61663RN50FPV Renesas Electronics America, R5F61663RN50FPV Datasheet - Page 139

• Manufacturer Part Number: R5F61663RN50FPV
• Description: MCU FLASH 384K ROM 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8SX/1600r

Specifications of R5F61663RN50FPV

• Core Processor: H8SX
• Core Size: 16/32-Bit
• Speed: 50MHz
• Connectivity: EBI/EMI, I²C, IrDA, SCI, SmartCard, USB
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 92
• Program Memory Size: 384KB (384K x 8)
• Program Memory Type: FLASH
• Ram Size: 40K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

The voltage detection circuit (LVD) is only supported by the H8SX/1668M Group.
This circuit is used to monitor Vcc. The LVD is capable of internally resetting the LSI when Vcc
falls and crosses the voltage detection level. An interrupt can also be generated.
5.1
•
A block diagram of the voltage detection circuit is shown in figure 5.1.
Capable of detecting the power-supply voltage (Vcc) becoming less than or equal to Vdet.
Capable of generating an internal reset or interrupt when a low voltage is detected.
Voltage-detection circuit
Vcc
[Legend]
LVDE:
LVDRI:
LVDMON: LVD monitor
LVDF:
Features
On-chip reference
(for sensing Vdet)
Section 5 Voltage Detection Circuit (LVD)
LVD enable
LVD reset / interrupt select
LVD flag
voltage
Figure 5.1 Block Diagram of Voltage-Detection Circuit
+
−
Power-supply
stabilization
time
generation
circuit
LVDRI
LVDF
LVDE
Rev. 2.00 Sep. 24, 2008 Page 105 of 1468
Section 5 Voltage Detection Circuit (LVD)
Reset /
interrupt
control
circuit
LVDMON
Voltage-monitoring
reset
Voltage-monitoring
interrupt
REJ09B0412-0200