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7721 Datasheet(PDF) 253 Page - Renesas Technology Corp

Part # 7721
Description  16-BIT SINGLE-CHIP MICROCOMPUTER
PDF  577 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7721 Datasheet(HTML) 253 Page - Renesas Technology Corp

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A-D CONVERTER
7721 Group User’s Manual
12–2
12.1 Overview
Table 12.1.1 lists the performance specifications of the A-D converter.
Table 12.1.1 Performance specifications of A-D converter
12.1 Overview
Item
A-D conversion method
Resolution
Absolute accuracy
Analog input pin
Conversion rate per analog input pin
Performance specifications
Successive approximation conversion method
8 bits
±3 LSB
8 pins (AN0 to AN7) (Note)
57
φADV cycles
φADV: A-D converter’s operation clock
The A-D converter has the 4 operation modes listed below.
•One-shot mode
This mode is used to perform the operation once for a voltage input from one selected analog input pin.
•Repeat mode
This mode is used to perform the operation repeatedly for a voltage input from one selected analog input
pin.
•Single sweep mode
This mode is used to perform the operation for voltages input from multiple selected analog input pins, one
at a time.
•Repeat sweep mode
This mode is used to perform the operation repeatedly for voltages input from multiple selected analog
input pins.



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