No. 7253-10/15

LC723481W/2W/3W

Continued from preceding page.

Pin No.

Pin

I/O

Function

I/O circuit

Connections for the built-in transistor used to form a low-pass filter.

61

62

AIN

AOUT

O

Main charge pump output. When the local oscillator frequency divided by N is higher

than the reference frequency a high level is output, when lower, a low level is output.

The pin is set to the high-impedance state when the frequencies match.

Output goes to the high-impedance state in backup mode, in halt mode, after a reset,

and in PLL stop mode.

60

EO

O

Power supply pin.

This pin must be connected to ground.

This pin must be connected to ground.

—

24

59

56

—

CMOS push-pull

Note 2:

When a pin in an I/O switching port is used as an output, applications must first set up the data with an OUT, SPB, or RPB instruction and then set

up output mode with an IOS instruction.