HD64F38024DV Renesas Electronics America, HD64F38024DV Datasheet - Page 454

• Manufacturer Part Number: HD64F38024DV
• Description: IC H8/SLP MCU FLASH 80QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300L SLPr

Specifications of HD64F38024DV

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: SCI
• Peripherals: LCD, PWM, WDT
• Number Of I /o: 51
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K 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: 80-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 14 Power-On Reset and Low-Voltage Detection Circuits (H8/38124 Group Only)
14.1.2
A block diagram of the power-on reset circuit and low-voltage detection circuit are shown in
figure 14.1.
Rev. 8.00 Mar. 09, 2010 Page 432 of 658
REJ09B0042-0800
External
External
resistor
supply
power
ladder
reference voltage
Two pairs of detection levels for reset generation voltage are available: when only the LVDR
circuit is used, or when the LVDI and LVDR circuits are both used. In addition, power supply
rise/drop detection voltages and a detection voltage reference voltage may be input from an
external source, allowing the detection level to be set freely by the user.
Figure 14.1 Diagram of Power-On Reset Circuit and Low-Voltage Detection Circuit
generator
External
Block Diagram
extD
extU
Vref
RES
Vcc
[Legend]
PSS:
LVDCR:
LVDSR:
LVDRES:
LVDINT:
Vreset:
Vint:
extD:
extU:
Vref:
Prescaler S
Low-voltage-detection control register
Low-voltage-detection status register
Low-voltage-detection reset signal
Low-voltage-detection interrupt signal
Reset detection voltage
Power-supply fall/rise detection voltage
Power supply drop detection voltage input pin
Power supply rise detection voltage input pin
Reference voltage input pin
resistor
Ladder
Vint
Vreset
reference voltage
generator
On-chip
canceler
canceler
Noise
Noise
+
+
−
−
LVDRES
LVDINT
φ
Interrupt
control
circuit
CK
R
PSS
Low-voltage detection circuit
Power-on reset circuit
OVF
LVDCR
LVDSR
R
S
Q
Interrupt
request
Internal reset
signal