DF2398TE20 Renesas Electronics America, DF2398TE20 Datasheet - Page 581
DF2398TE20
Manufacturer Part Number
DF2398TE20
Description
IC H8S MCU FLASH 256K 120TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Specifications of DF2398TE20
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
120-TQFP, 120-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
HD64F2398TE20
HD64F2398TE20
HD64F2398TE20
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2398TE20V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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16.6
The following points should be noted when using the A/D converter.
Setting Range of Analog Power Supply and Other Pins:
(1) Analog input voltage range
(2) Relation between AV
(3) V
Note:If conditions (1), (2), and (3) above are not met, the reliability of the device may be adversely affected.
Notes on Board Design: In board design, digital circuitry and analog circuitry should be as mutually isolated as possible,
and layout in which digital circuit signal lines and analog circuit signal lines cross or are in close proximity should be
avoided as far as possible. Failure to do so may result in incorrect operation of the analog circuitry due to inductance,
adversely affecting A/D conversion values.
Also, digital circuitry must be isolated from the analog input signals (AN0 to AN7), analog reference power supply (V
and analog power supply (AV
one point to a stable digital ground (V
Notes on Noise Countermeasures: A protection circuit connected to prevent damage due to an abnormal voltage such as
an excessive surge at the analog input pins (AN0 to AN7) and analog reference power supply (V
between AV
Also, the bypass capacitors connected to AV
connected to AV
If a filter capacitor is connected as shown in figure 16-7, the input currents at the analog input pins (AN0 to AN7) are
averaged, and so an error may arise. Also, when A/D conversion is performed frequently, as in scan mode, if the current
charged and discharged by the capacitance of the sample-and-hold circuit in the A/D converter exceeds the current input
via the input impedance (R
required when deciding the circuit constants.
The voltage applied to analog input pins AN0 to AN7 during A/D conversion should be in the range AV
V
As the relationship between AV
AV
The analog reference voltage input at the V
ref
ref
.
SS
input range
pins must on no account be left open.
Usage Notes
CC
and AV
SS
.
SS
CC
as shown in figure 16-7.
in
, AV
), an error will arise in the analog input pin voltage. Careful consideration is therefore
CC
SS
) by the analog ground (AV
and V
CC
, AV
SS
) on the board.
CC
, V
SS
and V
CC
SS
ref
and V
pin set in the range V
CC
, V
ref
SS
and the filter capacitor connected to AN0 to AN7 must be
, set AV
SS
). Also, the analog ground (AV
SS
= V
ref
SS
. If the A/D converter is not used, the AV
AV
CC
.
Rev.6.00 Oct.28.2004 page 551 of 1016
SS
) should be connected at
ref
) should be connected
REJ09B0138-0600H
SS
ANn
CC
and
ref
),
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