HD64F3687FP Renesas Electronics America, HD64F3687FP Datasheet - Page 396
HD64F3687FP
Manufacturer Part Number
HD64F3687FP
Description
IC H8 MCU FLASH 56K 64-LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300H Tinyr
Datasheet
1.HD64F3684GFPV.pdf
(538 pages)
Specifications of HD64F3687FP
Core Processor
H8/300H
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, SCI
Peripherals
PWM, WDT
Number Of I /o
45
Program Memory Size
56KB (56K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
64-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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Section 20 Power-On Reset and Low-Voltage Detection Circuits (Optional)
20.2
The low-voltage detection circuit has the following registers.
20.2.1
LVDCR is used to enable or disable the low-voltage detection circuit, set the detection levels for
the LVDR function, enable or disable the LVDR function, and enable or disable generation of an
interrupt when the power-supply voltage rises above or falls below the respective levels.
Rev.5.00 Nov. 02, 2005 Page 362 of 500
REJ09B0027-0500
Figure 20.1 Block Diagram of Power-On Reset Circuit and Low-Voltage Detection Circuit
Vcc
Low-voltage-detection control register (LVDCR)
Low-voltage-detection status register (LVDSR)
C
RES
RES
[Legend]
PSS:
LVDCR:
LVDSR:
LVDRES:
LVDINT:
Vreset:
Vint:
Register Descriptions
Low-Voltage-Detection Control Register (LVDCR)
Ladder
resistor
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
Vint
Vreset
Reference
voltage
generator
Noise canceler
Noise canceler
+
+
LVDRES
LVDINT
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
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