r5f21368sdfp Renesas Electronics Corporation., r5f21368sdfp Datasheet - Page 574
r5f21368sdfp
Manufacturer Part Number
r5f21368sdfp
Description
Renesas Mcu R8c Family / R8c/3xt-a Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R5F21368SDFP.pdf
(760 pages)
Available stocks
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Part Number
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Company:
Part Number:
r5f21368sdfp#V0
Manufacturer:
Renesas Electronics America
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Under development
R8C/36T-A Group
R01UH0240EJ0001 Rev.0.01
Apr 28, 2011
23.3
Figure 23.3
Figure 23.4
23.3.1
23.3.2
The analog inputs, AN0 to AN11, share pins P0_0 to P0_7 and P1_0 to P1_3.
When using the pins AN0 to AN11 as input, set the corresponding port direction bit to 0 (input mode).
After changing the A/D operating mode, the analog input pin must be selected again.
Figure 23.3 shows a Timing Diagram of A/D Conversion. Figure 23.4 shows the A/D Conversion Cycles ( AD
= fAD).
Conversion time
Items Common to Multiple Modes
(Minimum)
Note:
process
process
43 AD
Input/Output Pins
A/D Conversion Cycles
Start
Start
1. The conversion time (minimum) is 43 AD for 8-bit and 10-bit resolution.
Preliminary document
Specifications in this document are tentative and subject to change.
Timing Diagram of A/D Conversion
A/D Conversion Cycles ( AD = fAD)
(1)
Charging time
Open-circuit
Open-circuit
detection
detection
Start process
Start process
(Minimum)
1 AD
Conversion time for the 1st bit
Sampling time
15 AD cycles
Disabled: 0 AD
Enabled: 2 AD
Charging time
Open-circuit
Open-circuit
detection
detection
A/D conversion execution time
Comparison
A/D conversion execution time
Sampling time
Conversion time for the 1st bit
time
15 AD
Comparison
* Repeat until conversion ends
2nd bit
time
Comparison
Comparison
2.5 AD
time
time
••••••
the following bits
Conversion time
for the 2nd and
Comparison
2.5 AD
time
Comparison
time
End process
End process
process
process
End
End
2 AD
23. A/D Converter
Page 543 of 725
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