DF2398F20V Renesas Electronics America, DF2398F20V Datasheet - Page 584
DF2398F20V
Manufacturer Part Number
DF2398F20V
Description
IC H8S/2300 MCU FLASH 128QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Specifications of DF2398F20V
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
87
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
128-QFP
For Use With
YR0K42378FC000BA - KIT EVAL FOR H8S/2378
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Price
Company:
Part Number:
DF2398F20V
Manufacturer:
Renesas Electronics America
Quantity:
135
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Part Number:
DF2398F20V
Manufacturer:
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However, if a large capacitance is provided externally, the input load will essentially comprise only the internal input
resistance of 10 kohm, and the signal source impedance is ignored.
However, since a low-pass filter effect is obtained in this case, it may not be possible to follow an analog signal with a
large differential coefficient (e.g., 5 mV/ s or greater).
When converting a high-speed analog signal, a low-impedance buffer should be inserted.
Influences on Absolute Precision: Adding capacitance results in coupling with GND, and therefore noise in GND may
adversely affect absolute precision. Be sure to make the connection to an electrically stable GND such as AV
Care is also required to insure that filter circuits do not communicate with digital signals on the mounting board, so acting
as antennas.
Rev.6.00 Oct.28.2004 page 554 of 1016
REJ09B0138-0600H
Sensor input
Note: Values are reference values.
Sensor output
impedance
to 10 k
Low-pass
filter C
to 0.1 F
Figure 16-10 Example of Analog Input Circuit
C
15 pF
H8/2357
Group
in
=
A/D converter
equivalent circuit
10 k
20 pF
SS
.
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