NEC 78K0 User Manual page 533

CHAPTER 30 ELECTRICAL SPECIFICATIONS (STANDARD PRODUCTS, (A) GRADE PRODUCTS)
Recommended Oscillator Constants
Caution For the resonator selection of the
78F0148(A) and oscillator constants, users are required to either evaluate the oscillation
themselves or apply to the resonator manufacturer for evaluation.
µ
(a) PD780143, 780144, 780146, 780148
X1 oscillation: Ceramic resonator (T
Manufacturer Part Number
Murata Mfg. CSTCC2M00G56-R0
CSTCR4M00G53-R0
CSTCR4M00G53U-R0
CSTLS4M00G53-B0
CSTLS4M00G53U-B0
CSTCR4M19G53-R0
CSTCR4M19G53U-R0
CSTLS4M19G53-B0
CSTLS4M19G53U-B0
CSTCR4M91G53-R0
CSTCR4M91G53U-R0
CSTLS4M91G53-B0
CSTLS4M91G53U-B0
CSTCR5M00G53-R0
CSTCR5M00G53U-R0
CSTLS5M00G53-B0
CSTLS5M00G53U-B0
CSTCR6M00G53-R0
CSTCR6M00G53U-R0
CSTLS6M00G53-B0
CSTLS6M00G53U-B0
CSTCE8M00G52-R0
CSTLS8M00G53-B0
CSTLS8M00G53U-B0
CSTCE10M0G52-R0
CSTLS10M0G53-B0
CSTLS10M0G53U-B0
Note When the REGC pin is connected to V
Caution The oscillator constants shown above are reference values based on evaluation in a specific
environment by the resonator manufacturer.
characteristics in the actual application, apply to the resonator manufacturer for evaluation on
the implementation circuit. The oscillation voltage and oscillation frequency only indicate the
oscillator characteristic. Use the 78K0/KF1 so that the internal operation conditions are within
the specifications of the DC and AC characteristics.
µ
PD780143(A), 780144(A), 780146(A), 780148(A), and
= −40 to +85°C)
A
SMD/ Frequency Recommended
Lead (MHz) Circuit Constants
C1
(pF)
SMD 2.00 Internal
(47)
SMD 4.00 Internal
(15)
Lead Internal
(15)
SMD 4.194 Internal
(15)
Lead Internal
(15)
SMD 4.915 Internal
(15)
*
Lead Internal
(15)
SMD 5.00 Internal
(15)
Lead Internal
(15)
SMD 6.00 Internal
(15)
Lead Internal
(15)
SMD 8.00 Internal
(10)
Lead Internal
(15)
SMD 10.0 Internal
(10)
Lead Internal
(15)
via a capacitor (1
SS
User's Manual U15947EJ2V0UD
Oscillation Voltage Range
When Capacitor
Is Connected to
Note
REGC Pin
C2 MIN. MAX.
(pF) (V) (V)
Internal 4.0 5.5
(47)
Internal
(15)
Internal
(15)
Internal
(15)
Internal
(15)
Internal
(15)
Internal
(15)
Internal
(15)
Internal
(15)
Internal
(15)
Internal
(15)
Internal
(10)
Internal
(15)
− −
Internal
(10)
Internal
(15)
µ
F: recommended).
If it is necessary to optimize the oscillator
REGC Pin Is
Connected
Directly to V
DD
MIN. MAX.
(V) (V)
2.7 5.5
533