M30622MA-XXXFP RENESAS [Renesas Technology Corp], M30622MA-XXXFP Datasheet - Page 422
M30622MA-XXXFP
Manufacturer Part Number
M30622MA-XXXFP
Description
16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.M30622MA-XXXFP.pdf
(621 pages)
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A-D Converter
Table 2.7.12. The comparison voltage in 8-bit mode compared to 8-bit A-D converter
Figure 2.7.24. The level conversion characteristics of 8-bit mode and 8-bit A-D converter
2.7.12 Method of A-D Conversion (8-bit mode)
Comparison
voltage
Vref
Optimal conversion characteristics of 8-bit A-D converter (V
Optimal conversion characteristics in 8-bit mode (V
(Result of A-D conversion)
(1) In 8-bit mode, 8 higher-order bits of the 10-bit successive comparison register becomes A-D
(Result of A-D conversion)
conversion result. Hence, if compared to a result obtained by using an 8-bit A-D converter,
the voltage compared is different by 3 V
2.7.12), and differences in stepping points of output codes occur as shown in Figure 2.7.24.
n = 1 to 255
Note: Differences in stepping points of output code for analog input voltage.
mode
8-bit
02
01
00
n = 0
Output code
Output code
10-bit
mode
09
08
07
06
05
04
03
02
01
00
02
01
00
V
2
REF
8
10
x
8-bit mode
17.5
n
(Note)
–
0
V
2
REF
10
30
REF
37.5
x 0.5
/2048 (see what are underscored in Table
Analog input voltage (mV)
Analog input voltage (mV)
REF
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
= 5.12 V)
10bit-mode
8bit-mode
V
REF
2
REF
8
8-bit A-D converter
= 5.12 V)
x
n
–
0
Mitsubishi microcomputers
M16C / 62 Group
V
REF
2
8
x 0.5
407
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