E0C63158
● A/D Converter Characteristics
(Unless otherwise specified: AVDD=VDD=0.9 to 3.6V, AVSS=VSS=0V, Ta=-25 to 75°C)
Characteristic
Resolution
Error
Symbol
Condition
Min.
8
-3
-3
-3
Typ.
8
Max. Unit
8
3
3
3
21
641
AVREF
AVDD
bit
LSB
LSB
LSB
µS
µS
V
2.2V≤VDD≤2.7V Fconv=OSC3/2≤1MHz or OSC1
1.6V≤VDD≤2.2V Fconv=OSC1
0.9V≤VDD≤1.6V Fconv=OSC1, VADSEL=1
Convertion time
t
conv Fconv=OSC3/2=1MHz
Fconv=OSC1=32kHz
Input voltage
Reference voltage
AVREF resistance
AVSS
0.9
15
AVREF
V
20
kΩ
● Oscillation Characteristics
The oscillation characteristics change depending on the conditions (components used, board pattern, etc.). Use the follow-
ing characteristics as reference values.
OSC1 Crystal Oscillation Circuit
(Unless otherwise specified: VDD=3.0V, VSS=0V, fOSC1=32.768kHz, CG=25pF, CD=built-in, Ta=25°C)
Characteristic
Oscillation start voltage
Oscillation stop voltage
Symbol
Vsta
Vstp
Condition
Min.
1.1
1.1
0.9
Typ.
14
Max. Unit
(
)
t
t
(
sta≤3sec VDD
V
V
V
stp≤10sec
Normal mode
Booster mode
)
VDD
Built-in capacitance (drain)
Frequency/voltage deviation
CD
Including the parasitic capacitance inside the IC (in chip)
pF
∂f/∂V
V
DD=0.9 to 3.6V
with VDC switching
without VDC switching
10
5
10
ppm
ppm
ppm
ppm
V
Frequency/IC deviation
Frequency adjustment range
Harmonic oscillation start voltage Vhho
Permitted leak resistance
∂f/∂IC
-10
25
3.6
200
∂f/∂CG
C
C
G
G
=5 to 25pF
=5pF VDD
30
(
)
Rleak
Between OSC1 and VDD, VSS
MΩ
OSC1 CR Oscillation Circuit
(Unless otherwise specified: VDD=3.0V, VSS=0V, RCR1=1.5MΩ, Ta=25°C, VDC=1)
Characteristic
Oscillation frequency dispersion
Oscillation start voltage
Oscillation start time
Symbol
Condition
Min.
-30
2.2
Typ.
60kHz
Max. Unit
f
OSC1
30
%
V
Vsta Normal mode (VDD
sta DD=2.2 to 3.6V
Vstp Normal mode (VDD
)
)
t
V
3
mS
V
Oscillation stop voltage
2.2
(Unless otherwise specified: VDD=3.0V, VSS=0V, RCR1=1MΩ, Ta=25°C, VDC=0)
Characteristic
Oscillation frequency dispersion
Oscillation start voltage
Oscillation start time
Symbol
Condition
Min.
-30
1.3
Typ.
80kHz
Max. Unit
f
OSC1
30
%
V
Vsta Normal mode (VDD
sta DD=1.3 to 3.6V
Vstp Normal mode (VDD
)
)
t
V
3
mS
V
Oscillation stop voltage
1.3
OSC3 Ceramic Oscillation Circuit
(Unless otherwise specified: VDD=3.0V, VSS=0V, Ceramic oscillator: 4MHz, CGC=CDC=100pF, Ta=25°C)
Characteristic
Oscillation start voltage
Oscillation start time
Symbol
Condition
Min.
2.2
Typ.
Max. Unit
V
Vsta Normal mode (VDD)
tsta VDD=2.2 to 3.6V
Vstp Normal mode (VDD)
5
mS
V
Oscillation stop voltage
2.2
OSC3 CR Oscillation Circuit
(Unless otherwise specified: VDD=3.0V, VSS=0V, RCR2=40.2kΩ, Ta=25°C)
Characteristic
Oscillation frequency dispersion
Oscillation start voltage
Oscillation start time
Symbol
Condition
Min.
-30
2.2
Typ.
1.8MHz
Max. Unit
f
OSC3
30
%
V
Vsta Normal mode (VDD
sta DD=2.2 to 3.6V
Vstp Normal mode (VDD
)
)
t
V
3
mS
V
Oscillation stop voltage
2.2
6
SEIKO [ SEIKO EPSON CORPORATION ]
