LC651154N, 651154F, 651154L, 651152N, 651152F, 651152L
Lower limit for the operating supply voltage
Oscillation
stabilization
time tCFS
Stable oscillation
Figure 4 Oscillation Stabilization Time
Table 1 Recommended Ceramic Oscillator Circuit Constants
4 MHz (Murata Mfg. Co., Ltd.)
C1 33 pF ±10%
CSA4.00MG
C2 33 pF ±10%
CST4.00MGW (Internal capacitor) R
0Ω
4 MHz (Kyocera Corporation)
C1 33 pF ±10%
KBR4.0MSA
C2 33 pF ±10%
KBR4.0MKS (Internal capacitor)
R
0Ω
1 MHz (Murata Mfg. Co., Ltd.)
C1 100 pF ±10%
CSB1000J
C2 100 pF ±10%
R
3.3 kΩ
800 kHz (Murata Mfg. Co., Ltd.)
C1 100 pF ±10%
CSB800J
C2 100 pF ±10%
R
3.3 kΩ
400 kHz (Murata Mfg. Co., Ltd.)
C1 220 pF ±10%
CSB400P
C2 220 pF ±10%
R
3.3 kΩ
Figure 5 Reset Circuit
Note: If the power supply rise time is zero, the reset time when CRES = 0.1 µF
will be between 10 and 100 ms.
If the power supply rise time is long, increase the value of CRES so that
the reset time is at least 10 ms.
No. 6278-18/39