Overview

The CF/WF7202Hxxx is 32.768 kHz output and 125°C operation crystal oscillator module ICs with divide-by-512 (or divide-by-768, divide-by-1024) frequency, AT-cut crystal 16.777216MHz (or 25.165824MHz, 33.554432MHz) oscillator circuit built-in.
It is possible to generate a 32.768 kHz output crystal oscillator with excellent temperature characteristics by using AT-cut crystal.

Version

●For AT-cut fundamental oscillator

Oscillation

frequency*1

[MHz]

Operating

voltage

[V]

Operating

temperature

[̊C]

Output

type

Output

frequency

PAD layout and version name

FCB

WB

WB

16.777216

1.6 to 3.63

-40 to 125

CMOS

15pF max.

32.768kHz

(fosc/512)

7202HA1x

7202HB1x

7202HC1x

 25.165824

 32.768kHz

(fosc/768)

7202HA2x

7202HB2x

7202HC2x

33.554432

32.768kHz

(fosc/1024)

7202HA3x

7202HB3x

7202HC3x

*1. The recommended operating frequency is a yardstick value derived from the crystal used for NPC characteristics authentication. However, the oscillator frequency band is not guaranteed. Specifically, the characteristics can vary greatly due to crystal characteristics and mounting conditions, so the oscillation characteristics of components must be carefully evaluated.

Block Diagram

Features

・Recommended oscillation frequency (Fundamental frequency):
16.777216MHz (divide-by-512), 25.165824MHz (divide-by-768), 33.554432MHz (divide-by-1024)
・Regulated voltage drive circuit for reduced power consumption:
A1A ver. Typical: 7μA, VDD=3.3V, no output load
・Chip size: X=0.55mm,Y=0.55mm (measured between scribe line centers)
・Operating supply voltage: 1.6V to 3.63V
・Output drive capability: ±1mA
・Output frequency: 32.768kHz
・Output 3-state function
・Operation temperature: -40℃ to 125℃
・Low standby current(oscillator stopped, power saving pull-up resister)

Applications

General consumer electronic products (smartphone, tablet terminator, etc.)