Rev. 1.0, 02/00, page 915 of 1141
30.3.5
A/D Converter Characteristics of HD64F2199
Table 30.19 A/D Converter Characteristics of HD64F2199
(Conditions: Vcc = AVcc = 4.0 V to 5.5 V, Vss = AVss = 0.0 V, Ta = –20 to +75
°
C unless
otherwise specified.)
Values
Item
Symbol
Applicable
Pins
Test Conditions
Min
Typ
Max
Unit
Note
Analog power
supply voltage
AVcc
AVcc
Vcc
−
0.3
Vcc
Vcc+
0.3
V
Analog input
voltage
A
VIN
AN0 to AN7,
AN8 to ANB
AVss
AVcc
V
A
ICC
AVcc
AVcc = 5.0V
2.0
mA
Analog power
supply current
A
ISTOP
AVcc
Vcc = 2.7 V to 5.5 V
At reset and in
power-down mode
10
µ
A
Analog input
capacitance
C
AIN
AN0 to AN7,
AN8 to ANB
30
pF
Allowable signal
source impedance
R
AIN
AN0 to AN7,
AN8 to ANB
10
k
Ω
Resolution
10
Bit
Absolute accuracy
Vcc = AVcc =
5.0 V
±
4
LSB
Vcc = AVcc =
4.0 V to 5.0 V
±
4
LSB
Reference
value
Conversion time
13.4
26.6
µ
s
Note:
Do not open the AVcc and AVss pin even when the A/D converter is not in use. Set AVcc =
Vcc and AVss = Vss.