UPD784224 Datasheet, PDF (75/92 Pages) NEC – 16/8-BIT SINGLE-CHIP MICROCONTROLLERS

µPD784224, 784225, 784224Y, 784225Y
A/D Converter Characteristics
(TA = −40°C to +85°C, VDD = VDD0 = VDD1 = AVDD = 1.8 to 5.5 V, VSS = VSS0 = VSS1 = AVSS = 0 V)
Parameter
Resolution
Overall error^Note
Conversion time
Sampling time
Analog input voltage
Reference voltage
Resistance between
AVDD and AVSS
Symbol
Conditions
tCONV
tSAMP
VIAN
AVDD
RAVREF0
6.25 MHz < fXX ≤ 12.5 MHz,
4.5 V ≤ VDD ≤ 5.5 V, AVDD = VDD0
3.125 MHz < fXX ≤ 6.25 MHz,
2.7 V ≤ VDD ≤ 5.5 V, AVDD = VDD0
2 MHz < fXX ≤ 3.125 MHz,
2.0 V ≤ VDD ≤ 5.5 V, AVDD = VDD0
fXX = 2 MHz, 1.8 V ≤ VDD ≤ 5.5 V
AVDD = VDD0
A/D conversion is not performed
MIN. TYP. MAX. Unit
8
8
8 bit
±1.2 %FSR
±1.2 %FSR
±1.6 %FSR
±1.6 %FSR
14
144 µs
24/fXX
µs
AVSS
AVDD V
VDD
VDD
VDD
V
40
kΩ
Note Excludes quantization error (±0.2%FSR).
Remark FSR: Full-scale range
D/A Converter Characteristics
(TA = −40°C to +85°C, VDD = VDD0 = VDD1 = AVDD = 1.8 to 5.5 V, VSS = VSS0 = VSS1 = AVSS = 0 V)
Parameter
Resolution
Overall error^Note
Settling time
Output resistance
Reference voltage
AVREF1 current
Symbol
Conditions
RO
AVREF1
AIREF1
2.0 V ≤ VDD ≤ 5.5 V
R = 10 MΩ, 2.0 V ≤ AVREF1 ≤ 5.5 V
1.8 V ≤ VDD ≤ 2.0 V
R = 10 MΩ, 1.8 V ≤ AVREF1 ≤ 5.5 V
Load conditions:
C = 30 pF
4.5 V ≤ AVREF1 ≤ 5.5 V
2.7 V ≤ AVREF1 < 4.5 V
1.8 V ≤ AVREF1 < 2.7 V
DACS0, 1 = 55H
For only 1 channel
MIN. TYP. MAX. Unit
8
8
8 bit
±0.6 %FSR
±1.2 %FSR
10 µs
15 µs
20 µs
8
kΩ
1.8
VDD0
V
2.5 mA
Note Excludes quantization error (±0.2%FSR).
Remark FSR: Full-scale range
Data Sheet U12376EJ1V0DS00
75