DS72030W200FPV Renesas Electronics America, DS72030W200FPV Datasheet - Page 1082
DS72030W200FPV
Manufacturer Part Number
DS72030W200FPV
Description
MPU, 32BIT, SH7203, ROMLESS, 240QFP
Manufacturer
Renesas Electronics America
Series
SH7200r
Datasheet
1.R5S72030W200FP.pdf
(1686 pages)
Specifications of DS72030W200FPV
Core Size
32bit
Program Memory Size
32KB
Cpu Speed
200MHz
Digital Ic Case Style
QFP
No. Of Pins
240
Supply Voltage Range
1.1V To 1.3V
Operating Temperature Range
-20°C To +85°C
Svhc
No SVHC
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Section 21 D/A Converter (DAC)
21.4
The D/A converter includes D/A conversion circuits for two channels, each of which can operate
independently. When the DAOE bit in DACR is set to 1, D/A conversion is enabled and the
conversion result is output.
An operation example of D/A conversion on channel 0 is shown below. Figure 21.2 shows the
timing of this operation.
1. Write the conversion data to DADR0.
2. Set the DAOE0 bit in DACR to 1 to start D/A conversion. The conversion result is output from
3. If DADR0 is written to again, the conversion is immediately started. The conversion result is
4. If the DAOE0 bit is cleared to 0, analog output is disabled.
Rev. 3.00 Sep. 28, 2009 Page 1050 of 1650
REJ09B0313-0300
the analog output pin DA0 after the conversion time t
continues to be output until DADR0 is written to again or the DAOE0 bit is cleared to 0. The
output value is expressed by the following formula:
output after the conversion time t
Contents of DADR
Operation
[Legend]
t
Address
DCONV
DADR0
DAOE0
256
DA0
φ
: D/A conversion time
High-impedance state
DADR0
write cycle
Figure 21.2 Example of D/A Converter Operation
× AVref
DACR
write cycle
DCONV
Conversion data 1
t
DCONV
has elapsed.
Conversion
result 1
DADR0
write cycle
DCONV
has elapsed. The conversion result
t
DCONV
Conversion data 2
Conversion
result 2
DACR
write cycle
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