UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 306

• Manufacturer Part Number: UPD78F0890GK(A)-GAJ-AX
• Description: 8BIT MCU, 128K FLASH, 7K RAM, LQFP
• Manufacturer: NEC

Specifications of UPD78F0890GK(A)-GAJ-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 10
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

(11) Internal equivalent circuit
306
Remarks 1. The resistance and capacitance values shown in Table 13-4 are not guaranteed values.
The equivalent circuit of the analog input block is shown below.
Table 13-4. Resistance and Capacitance Values of Equivalent Circuit (Reference Values)
2. n = 0 to 11
2.7 V ≤ AV
2.3 V ≤ AV
4.0 V ≤ AV
Figure 13-23. Internal Equivalent Circuit of ANIn Pin
AV
REF
REF
REF
REF
CHAPTER 13 A/D CONVERTER
< 4.0 V
< 2.7 V
≤ 5.5 V
ANIn
User’s Manual U17554EJ4V0UD
381 kΩ
8.1 kΩ
31 kΩ
R1
C1
R1
8 pF
8 pF
8 pF
C1
C2
5 pF
5 pF
5 pF
C2