UPD784218 Datasheet, PDF (74/92 Pages) NEC – 16-/8-BIT SINGLE-CHIP MICROCONTROLLERS

µPD784218, 784218Y
A/D Converter Characteristics (TA = –40 to +85°C, VDD = AVDD = 2.2 to 5.5 V, VSS = AVSS = 0 V)
Parameter
Symbol
Conditions
MIN. TYP. MAX. Unit
Resolution
8
8
8
bit
Overall error^Note
2.7 V ≤ AVREF0 ≤ AVDD
±1.2 %
2.2 V ≤ AVREF0 < 2.7 V (only when AVREF0 = AVDD)
±1.6 %
Conversion time
tCONV
14
144 µs
Sampling time
tSAMP
24/fXX
µs
Analog input voltage
VIAN
AVSS
AVREF0 V
Reference voltage
AVREF0
2.2
AVDD
V
Resistance between AVREF0 and AVSS RAVREF0
29.4
kΩ
Note Excludes quantization error (±1/2 LSB).
Remark fXX: Main system clock frequency
D/A Converter Characteristics (TA = –40 to +85°C, VDD = AVDD = 2.2 to 5.5 V, VSS = AVSS = 0 V)
Parameter
Resolution
Total error
Settling time
Output resistance
Reference voltage
AVREF1 current
Symbol
Conditions
MIN. TYP. MAX. Unit
8
8
8
bit
R = 2 MΩ, 2.2 V < AVREF1 ≤ 5.5 V
±1.2 %
R = 4 MΩ, 2.2 V < AVREF1 ≤ 5.5 V
±0.8 %
R = 10 MΩ, 2.2 V < AVREF1 ≤ 5.5 V
±0.6 %
Load conditions:
C = 30 pF
4.5 V ≤ AVREF1 ≤ 5.5 V
2.7 V ≤ AVREF1 < 4.5 V
10
µs
15
µs
2.2 V ≤ AVREF1 < 2.7 V
20
µs
RO
DACS0, 1 = 55 H
5.3
kΩ
AVREF1
2.2
VDD
V
AIREF1 For only 1 channel
2.5 mA
74
Data Sheet U12304EJ2V0DS00