DS72030W200FPV Renesas Electronics America, DS72030W200FPV Datasheet - Page 1076

• Manufacturer Part Number: DS72030W200FPV
• Description: MPU, 32BIT, SH7203, ROMLESS, 240QFP
• Manufacturer: Renesas Electronics America
• Series: SH7200r

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

Section 20 A/D Converter (ADC)
20.7.6
Adding capacitance results in coupling with GND, and therefore noise in GND may adversely
affect absolute precision. Be sure to connect AVss, etc. to an electrically stable GND.
Care is also required to insure that filter circuits do not communicate with digital signals on the
mounting board (i.e., acting as antennas).
20.7.7
Before entering deep standby mode, disable A/D conversion by clearing the ADST bit to 0. If the
LSI enters deep standby mode with A/D conversion enabled, the states on the A/D converter pins
are not guaranteed.
20.7.8
Starting conversion immediately after stopping scan mode or multi mode can cause incorrect
conversion results. To continue with conversion in which cases, allow a duration equivalent to the
A/D conversion time for one channel to elapse after clearing ADST to 0 before starting conversion
(by setting ADST to 1). (The A/D conversion time for one channel differs depending on the
peripheral register settings.)
Rev. 3.00 Sep. 28, 2009 Page 1044 of 1650
REJ09B0313-0300
Influences on Absolute Precision
A/D Conversion in Deep Standby Mode
Note on Usage in Scan Mode and Multi Mode
Sensor input
Note: Values are reference values.
Sensor output impedance
Figure 20.10 Example of Analog Input Circuit
Low-pass filter
C to 0.1 μF
Up to 5 kΩ
15 pF
Cin =
This LSI
A/D converter
equivalent circuit
3 kΩ
20 pF