DS72030W200FPV Renesas Electronics America, DS72030W200FPV Datasheet - Page 1075

• 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

Table 20.7 Analog Input Pin Ratings
20.7.5
This LSI's analog input is designed such that conversion precision is guaranteed for an input signal
for which the signal source impedance is 5 kΩ or less. This specification is provided to enable the
A/D converter's sample-and-hold circuit input capacitance to be charged within the sampling time;
if the sensor output impedance exceeds 5 kΩ, charging may be insufficient and it may not be
possible to guarantee A/D conversion precision. However, for A/D conversion in single mode with
a large capacitance provided externally for A/D conversion in single mode, the input load will
essentially comprise only the internal input resistance of 3 kΩ, and the signal source impedance is
ignored. However, as 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/μs or greater) (see
figure 20.10). When converting a high-speed analog signal, a low-impedance buffer should be
inserted.
Item
Analog input capacitance
Allowable signal-source impedance
Permissible Signal Source Impedance
AN0 to AN7
Note: Values are reference values.
Figure 20.9 Analog Input Pin Equivalent Circuit
3 k
Min.
⎯
⎯
20 pF
Rev. 3.00 Sep. 28, 2009 Page 1043 of 1650
To A/D converter
Max.
20
5
Section 20 A/D Converter (ADC)
REJ09B0313-0300
Unit
pF
kΩ