2.5 mm x 3.2 mm Ceramic Package SMD Oscillator, HC-MOS

ISM34 Series

06/11 _B

Specifications subject to change without notice

Page 1

Recommended Pad layout

1.3

1.4

2.0

2.6

Dimension Units: mm

Pin

Connection

1

Enable

2

GND

3

Output

4

Vcc

Product Features:

Applications:

RoHs Compliant

Real Time Clocks

CMOS Logic Levels

Metering

Compatible with Leadfree Processing

Industrial Control

Small Footprint Package

Time Reference

System Clock

NOTE: A 0.01 µF bypass capacitor is recommended between Vcc (pin 4) and GND (pin 2) to minimize power supply noise.

Frequency

32.768 kHz

Output Level

HC-MOS

‘0’ = 0.1 Vcc Max., ‘1’ = 0.9 Vcc Min.

Duty Cycle

Specify 50% ±10% or ±5% See Table in Part Number Guide

Rise / Fall Time

50 nS Max.

Output Load

15pF ±5%

Frequency Stability

See Frequency Stability Table (Includes room temperature tolerance and

stability over operating temperature)

Enable / Disable Time

200 nS Max.

Start Up Time

28 mS Max.

Supply Voltage

See Input Voltage Table, tolerance ±5 %

Current

1.0 mA Max.

Operating

See Operating Temperature Table in Part Number Guide

Storage

Part Number Guide

Sample Part Number:

ISM34 -3153BH – 32.768

Package

Input

Voltage

Operating

Temperature

Symmetry

(Duty Cycle)

Output

Stability

(in ppm)

Enable /

Disable

Frequency

3 = 3.3 V

1 = 0

 C to +70 C

5 = 45 / 55 Max.

3 = 15 pF HC-MOS

A =

25

H = Enable

- 32.768 kHz

6 = 2.5 V

6 = -10

 C to +70 C

6 = 40 / 60 Max.

B =

50

1 = 1.8 V*

3 = -20

 C to +70 C

C =

100

4 = -30

 C to +75 C

2 = -40

 C to +85 C