R0K572030S000BE Renesas Electronics America, R0K572030S000BE Datasheet - Page 1075
R0K572030S000BE
Manufacturer Part Number
R0K572030S000BE
Description
KIT DEV FOR SH7203
Manufacturer
Renesas Electronics America
Series
Renesas Starter Kits (RSK)r
Type
MCUr
Specifications of R0K572030S000BE
Contents
CPU Board, LCD Module, E10A-Lite Emulator, Cable, QuickStart Guide and CD-ROM
Silicon Manufacturer
Renesas
Kit Contents
Board
Silicon Family Name
SH7203
Silicon Core Number
R5S72030W200FP
Tool / Board Applications
General Purpose MCU, MPU, DSP, DSC
Mcu Supported Families
SH7203
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
SH7203
Lead Free Status / Rohs Status
Compliant
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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
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