E0C6281
● Oscillation Characteristics
The oscillation characteristics change depending on the conditions (components used, board pattern, etc.). Use the follow-
ing characteristics as reference values.
E0C6281 (Crystal)
(Unless otherwise specified: VDD=0V, VSS=-3.0V, Crystal: C-002R (C
I
=35kΩ), C
G
=25pF, CD=built-in, Ta=25°C)
Characteristic
Oscillation start voltage
Oscillation stop voltage
Built-in capacitance (drain)
Frequency/voltage deviation
Frequency/IC deviation
Frequency adjustment range
Harmonic oscillation start voltage
Permitted leak resistance
Symbol
Vsta
Vstp
Condition
Min.
-1.8
-1.8
Typ.
Max.
Unit
V
V
t
t
sta≤3sec
stp≤10sec
(VSS
(VSS
)
)
C
D
Including the parasitic capacity inside the IC
20
pF
∂f/∂V
∂f/∂IC
V
SS=-1.8 to -3.5V
=5 to 25pF
Between OSC1 and VDD, VSS
5
10
ppm
ppm
ppm
V
-10
40
∂f/∂CG
CG
V
hho
(VSS
)
-3.5
Rleak
200
MΩ
E0C62L81 (Crystal)
(Unless otherwise specified: VDD=0V, VSS=-1.5V, Crystal: C-002R (C
I
=35kΩ), C
G
=25pF, CD=built-in, Ta=25°C)
Characteristic
Oscillation start voltage
Oscillation stop voltage
Built-in capacitance (drain)
Frequency/voltage deviation
Frequency/IC deviation
Frequency adjustment range
Harmonic oscillation start voltage
Permitted leak resistance
Symbol
Vsta
Vstp
Condition
Min.
-1.1
-1.1(-0.9)*1
Typ.
Max.
Unit
V
V
t
t
sta≤3sec
stp≤10sec
(VSS
(VSS
)
)
C
D
Including the parasitic capacity inside the IC
20
pF
∂f/∂V
∂f/∂IC
V
SS=-1.1 to -3.5V (-0.9) *1
=5 to 25pF
Between OSC1 and VDD, VSS
5
10
ppm
ppm
ppm
V
-10
40
∂f/∂CG
CG
V
hho
(VSS
)
-3.5
Rleak
200
MΩ
1: Items enclosed in parentheses ( ) are those used when operating at heavy load protection mode.
E0C62A81 (CR)
(Unless otherwise specified: VDD=0V, VSS=-3.0V, RCR=850kΩ, Ta=25°C)
Characteristic
Oscillation frequency dispersion
Oscillation start voltage
Oscillation start time
Symbol
Condition
Min.
-20
-1.8
Typ.
32.768kHz
Max.
20
Unit
%
V
mS
V
f
OSC
Vsta
sta
(VSS
(VSS
)
)
t
V
SS=-1.8 to -3.5V
3
Oscillation stop voltage
Vstp
-1.8
E0C62B81 (CR)
(Unless otherwise specified: VDD=0V, VSS=-1.5V, RCR=850kΩ, Ta=25°C)
Characteristic
Oscillation frequency dispersion
Oscillation start voltage
Oscillation start time
Symbol
Condition
Min.
-20
-0.9
Typ.
32.768kHz
Max.
20
Unit
%
V
mS
V
f
OSC
Vsta
sta
Vstp
(VSS
(VSS
)
)
t
V
SS=-0.9 to -3.5V
3
Oscillation stop voltage
-0.9
8
SEIKO [ SEIKO EPSON CORPORATION ]
