UPD17073 NEC, UPD17073 Datasheet - Page 107
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UPD17073
Manufacturer Part Number
UPD17073
Description
4-BIT SINGLE-CHIP MICROCONTROLLER WITH HARDWARE FOR DIGITAL TUNING SYSTEM
Manufacturer
NEC
Datasheet
1.UPD17073.pdf
(226 pages)
- Current page: 107 of 226
- Download datasheet (2Mb)
13.5 Comparison Timing Chart
result (ADCCMP flag) can be read.
13.6 Performance of A/D Converter
The ADCEN flag is automatically cleared to 0 when the comparison operation has been completed.
The ADCSTRT flag is reset to 0 two instructions after the ADCSTRT flag has been set. At this point, the compare
Figure 13-9 shows the timing chart.
Table 13-2 shows the performances of the A/D converter.
Instruction cycle
ADCSTRT flag
Sample & hold
ADCCMP flag
Figure 13-9. Timing Chart of A/D Converter’s Compare Operation
Resolution
Input voltage range
Quantization error
Over range
Error of offset, gain, and non-linearity
Note Including quantization error
converter start
instruction
A/D
Table 13-2. Performances of A/D Converter
Parameter
converter start
instruction
A/D
NOP
15.5/16
Performance
3/2 LSB
1/2 LSB
4 bits
0-V
DD
NOP
Note
V
DD
Comparison
PD17072,17073
ADCCMP
result
read
107
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