9

MITSUBISHI LINEAR IC’s

M35502AFP

FLD CONTROLLER

CLOCK GENERATING CIRCUIT

Oscillating circuit is built up by connecting a capacitor between pins

When supplying a clock externally, input it to the OSC pin.

Fig.10 CR generating circuit

Fig.11 External clock input circuit

HANDLING OF UNUSED PINS

Handle unused pins as the follow.

Pin

Segment

Digit

Analog input

Handling

Open

Open

Table 2 Handling of unused pins

POWER-ON RESET

Reset can be performed automatically during power on (power-on reset) by the built-in power-on reset circuit.

Fig.12 Power-on reset

OSC

OSC

External oscillation circuit

VDD

Reset state

Internal reset signal

Reset released

Poweron