NEC 78K0 User Manual page 239

(13) Internal equivalent circuit
The equivalent circuit of the analog input block is shown below.
Table 11-4. Resistance and Capacitance Values of Equivalent Circuit (Reference Values)
Remarks 1. The resistance and capacitance values shown in Table 11-4 are not guaranteed values.
2. n = 0 to 7
CHAPTER 11 A/D CONVERTER
Figure 11-22. Internal Equivalent Circuit of ANIn Pin
R1
ANIn
C1
AV R1 R2
REF
2.7 V 12 kΩ 8 kΩ
4.5 V 4 kΩ 2.7 kΩ
User's Manual U16227EJ2V0UD
R2
C2 C3
C1 C2 C3
8 pF 3 pF 2 pF
8 pF 1.4 pF 2 pF
239