SM5024 series

NIPPON PRECISION CIRCUITS INC.—2

PINOUT

(Top view)

PIN DESCRIPTION

BLOCK DIAGRAM

Notes. The SM5024 series reduce crystal current by limiting driving current of oscillating-stage inverter and inhibiting oscillating amplitude. Depending on

the characteristics of using crystal or the mounting condition, they may not oscillate normally. Please evaluate the oscillation start-up characteris-

tics adequately with your actual device. When this device is used for buffer application, please pay attention to input amplitude to the XT pin. If it’s

low input amplitude, the SM5024 series may not operate normally.

Name

I/O

Description

INHN

I

Output state control input. High impedance when LOW.

Pull-up resistor built-in.

XT

I

Amplifier input

Crystal connection pins.

Crystal is connected between XT and XTN.

XTN

O

Amplifier output

VSS

–

Ground

Q

O

VDD

–

Supply voltage

INHN = LOW active

1

XT

VSS

Q

VDD

2

3

6

5

4

XTN

INHN

XT

VSS

VDD

Q

XTN

INHN

1/2

1/2

1/2