No. 5680-5/13

LC7455A, 7455M

Table 1 Ceramic Oscillator Guaranteed Constants

Figure 1 Ceramic Oscillator

Figure 2 Oscillator Stabilization Time

Figure 3 Serial Output Test Conditions

Note: Capacitors with K tolerance (±10%) and SL characteristics must be used for C1 and C2.

· Since this circuit is influenced by the length of the circuit pattern, components related to oscillator functioning must be mounted as close together as

possible so that pattern lines do not become longer than is absolutely necessary.

· The characteristics are not guaranteed if an oscillator element other than the one listed above is used.

Oscillator type

Manufacturer

Oscillator element

C1

C2

508-kHz ceramic oscillator

Murata Mfg. Co., Ltd.

CSB 508E

150 pF

150 pF

Power supply

<AC timing measurement point>

<Timing>

<Test load>

Note: CPDT goes to the high-impedance state while CE is high.