HD64F38024DV Renesas Electronics America, HD64F38024DV Datasheet - Page 453
HD64F38024DV
Manufacturer Part Number
HD64F38024DV
Description
IC H8/SLP MCU FLASH 80QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300L SLPr
Datasheets
1.US38024-BAG1.pdf
(684 pages)
2.DF36012GFYV.pdf
(1021 pages)
3.DF38102HV.pdf
(145 pages)
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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD64F38024DV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 453 of 684
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14.1
This LSI can include a power-on reset circuit and low-voltage detection circuit.
The low-voltage detection circuit consists of two circuits: LVDI (interrupt by low voltage detect)
and LVDR (reset by low voltage detect) circuits.
This circuit is used to prevent abnormal operation (runaway execution) from occurring due to the
power supply voltage fall and to recreate the state before the power supply voltage fall when the
power supply voltage rises again.
Even if the power supply voltage falls, the unstable state when the power supply voltage falls
below the guaranteed operating voltage can be removed by entering standby mode * when
exceeding the guaranteed operating voltage and during normal operation. Thus, system stability
can be improved. If the power supply voltage falls more, the reset state is automatically entered. If
the power supply voltage rises again, the reset state is held for a specified period, then active mode
is automatically entered.
Figure 14.1 is a block diagram of the power-on reset circuit and the low-voltage detection circuit.
Note: * The voltage maintained in standby mode is the same as the RAM data retaining voltage
14.1.1
The features of the power-on reset circuit and low-voltage detection circuit are described below.
• Power-on reset circuit
• Low-voltage detection circuit
LVI0000A_000020030300
Section 14 Power-On Reset and Low-Voltage Detection
Uses an external capacitor to generate an internal reset signal when power is first supplied.
LVDR: Monitors the power-supply voltage, and generates an internal reset signal when the
voltage falls below a specified value.
LVDI: Monitors the power-supply voltage, and generates an interrupt when the voltage falls
below or rises above respective specified values.
(V
Overview
Features
Section 14 Power-On Reset and Low-Voltage Detection Circuits (H8/38124 Group Only)
RAM
). See section 16.8.2, DC Characteristics, for information on retaining voltage.
Circuits (H8/38124 Group Only)
Rev. 8.00 Mar. 09, 2010 Page 431 of 658
REJ09B0042-0800
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