HD404818 Datasheet, PDF (40/100 Pages) Hitachi Semiconductor – 16-digit LCD driver

HD404818 Series
Table 18 Examples of Oscillator Circuits
External clock operation
Circuit Configuration
Oscillator
OSC ₁
Ceramic oscillator
Open
OSC₂
C₁
Ceramic
C₂
GND
OSC₁
R_f
OSC₂
Crystal oscillator
C₁
Crystal
C₂
GND
OSC₁
R_f
OSC₂
L C_S R_S
C₀
Circuit Constants
HD404812, HD404814, HD404816,
HD404818, HD4074818
Ceramic oscillator: CSA4.00MG
(Murata)
R_f = 1MΩ ± 20%
C₁ = C₂ = 30 pF ± 20%
HD40L4812, HD40L4814,
HD40L4816, HD40L4818,
HD407L4818
Ceramic oscillator: CSB400P
(Murata)
CSB400P22 (Murata)
R_f = 1 MΩ ± 20%
C₁ = C₂ = 220 pF ± 5%
CSB800J (Murata)
CSB800J122 (Murata)
R_f = MΩ ± 20%
C₁ = C₂ = 220 pF ± 5%
HD404812, HD404814, HD404816,
HD404818, HD4074818
C₁: 10 to 22 pF ± 20%
C₂: 10 to 22 pF ± 20%
R_f = 1 MΩ ± 20%
Crystal: Equivalent to circut shown
at bottom left.
C₀: 7 pF max.
R_S: 100 Ω max
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