
S1C6S460 TECHNICAL MANUAL
EPSON
91
CHAPTER 14: ELECTRICAL CHARACTERISTICS
14.6 Oscillation Characteristics
The oscillation characteristics change depending on the conditions (components used, board pattern,
etc.). Use the following characteristics as reference values.
OSC1 crystal oscillation characteristics
Item
Oscillation start time
Built-in drain capacitance
Frequency/voltage deviation
Frequency/IC deviation
Frequency adjustable range
Harmonic oscillation start voltage
Permitted leak resistance
Symbol
tsta
CD
f/V
f/IC
f/CG
Vhho
Rleak
Unit
s
pF
ppm
V
M
Max.
5
10
-5.5
Typ.
20
19
45
Min.
-10
35
200
Condition
VSS=-2.2 to -5.5V
Package as assembled
Bare chip
VSS=-2.2 to -5.5V
CG=5 to 25pF
CG=5pF (VSS)
Between OSC1 and VDD, VS1
Conditions unless otherwise specified:
VDD=0V, VSS=-3.0V, Crystal: Q13MC146, CGX=25pF, CDX=built-in, Rfx=10M
, Ta=25°C, VSC="0"
OSC3 CR oscillation characteristics 1
Item
Oscillation frequency
Oscillation start time
Frequency/voltage deviation
Symbol
fOSC3
tsta
f/V
Unit
kHz
ms
%
Max.
Typ.
×130%
10
+5
Typ.
1,000
Min.
Typ.
×70%
-5
Condition
RCR2=60k
VSS=-2.2 to -5.5V
Conditions unless otherwise specified:
VDD=0V, VSS=-3.0V, Ta=25
°C, VSC="1"
OSC3 CR oscillation characteristics 2
Item
Oscillation frequency
Oscillation start time
Frequency/voltage deviation
Symbol
fOSC3
tsta
f/V
Unit
MHz
ms
%
Max.
Typ.
×130%
10
+5
Typ.
2.0
Min.
Typ.
×70%
-5
Condition
RCR2=30k
VSS=-3.5 to -5.5V
Conditions unless otherwise specified:
VDD=0V, VSS=-5.0V, Ta=25
°C, VSC="2"
OSC3 ceramic oscillation characteristics 1
Item
Oscillation start time
Frequency/voltage deviation
1
Symbol
tsta
f/V
Unit
ms
%
Max.
10
+3
Typ.
Min.
-3
Made by Murata Mfg. Co.
Condition
VSS=-2.2 to -5.5V
Conditions unless otherwise specified:
VDD=0V, VSS=-3.0V, Ta=25
°C, VSC="1", Ceramic oscillator: CSB 1000J 1 (1MHz), CGC=CDC=100pF, Rfc=1M
OSC3 ceramic oscillation characteristics 2
Item
Oscillation start time
Frequency/voltage deviation
1
Symbol
tsta
f/V
Unit
ms
%
Max.
10
+3
Typ.
Min.
-3
Made by Murata Mfg. Co.
Condition
VSS=-3.5 to -5.5V
Conditions unless otherwise specified:
VDD=0V, VSS=-5.0V, Ta=25
°C, VSC="2", Ceramic oscillator: CSA 2.00MG 1 (2MHz), CGC=CDC=100pF, Rfc=1M