DF2315VTE25 Renesas Electronics America, DF2315VTE25 Datasheet - Page 582
DF2315VTE25
Manufacturer Part Number
DF2315VTE25
Description
MCU 3V 384K 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Specifications of DF2315VTE25
Core Processor
H8S/2000
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
POR, PWM, WDT
Number Of I /o
70
Program Memory Size
384KB (384K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2315VTE25V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 14 A/D Converter (8 Analog Input Channel Version)
14.6
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
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
Also, the analog ground (AV
on the board.
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
14.7.
Also, the bypass capacitors connected to AV
to AN7 must be connected to AV
If a filter capacitor is connected as shown in figure 14.7, 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
Rev.7.00 Feb. 14, 2007 page 548 of 1108
REJ09B0089-0700
The voltage applied to analog input pins ANn during A/D conversion should be in the range
AV
As the relationship between AV
is not used, the AV
The analog reference voltage input at the V
V
pin open.
ref
ref
SS
input range
pin should be set as V
≤ ANn ≤ V
Usage Notes
ref
.
CC
CC
and AV
ref
ref
, AV
), and analog power supply (AV
) should be connected between AV
SS
ref
) should be connected at one point to a stable digital ground (V
= V
SS
SS
SS
and V
.
CC
pins must not be left open.
CC
, AV
when the A/D converter is not used. Do not leave the V
CC
SS
, V
CC
and V
SS
ref
and V
pin should be set in the range V
CC
, V
ref
and the filter capacitor connected to AN0
SS
, set AV
CC
) by the analog ground (AV
CC
and AV
SS
= V
SS
SS
. If the A/D converter
as shown in figure
ref
≤ AV
CC
SS
. The
).
SS
ref
)
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