Specifications subject to change without notice. All dimensions in inches. © Copyright 1998 The Connor-Winfield Corporation

2111 Comprehensive Drive

Aurora, Illinois 60505

Phone: 630- 851- 4722

Fax: 630- 851- 5040

www.conwin.com

2111 Comprehensive Drive

Aurora, Illinois 60505

Phone: 630- 851- 4722

Fax: 630- 851- 5040

www.conwin.com

3.3V Surface Mount

Crystal Clock Oscillator

HSM643

XO

The Connor-Winfield HSM643 is a 7.5mm x

5mm, 3.3V HCMOS, Surface Mount, Fixed

Frequency Crystal Oscillators (XO) designed for

use in all applications requiring precision clocks.

The RoHS compliant surface mount package is

designed for high-density mounting and is

optimum for mass production.

Operating Specifications

Parameter

Minimum

Nominal

Maximum

Units

Notes

Frequency Range (Fo)

1.544

-

125

MHz

Frequency Tolerance

-20

-

20

ppm

1

Operating Temp Range

-40

-

85

°C

Supply Voltage (Vdd)

3.135

3.3

3.465

Vdc

Supply Current (Icc)

-

-

mA

1.544 to 31.999 MHz

15

32 to 49.999 MHz

20

50 to 66.999 MHz

25

67 to 125 MHz

Absolute Maximum Ratings

Parameter

Minimum

Nominal

Maximum

Units

Notes

Storage Temperature

-55

-

125

°C

Supply Voltage (Vcc)

-0.5

-

5.0

Vdc

Features:

1.544 to 125 MHz

3.3V Operation

RoHS Compliant

Tri-State Enable/Disable

Power Saving Function: 10uA When Disabled

Overall Frequency Tolerance: ± 20 ppm

Temperature Range: -40 to 85°C

Ceramic Surface Mount Package

Tape and Reel Packaging

Notes:

1. Inclusive of calibration @ 25°C , frequency stability vs temperature, supply voltage change, load change, shock and vibration, 15 years aging.

2. Oscillator output is enabled with no connection on pad 1

Bulletin

Sm071

Page

1 of 2

Revision

05

Date

27 Nov 2007

US Headquarters:

630-851-4722

European Headquarters:

+353-61-472221

Input Characteristics

Parameter

Minimum

Nominal

Maximum

Units

Notes

Enable Voltage - (Vih)

≥ 70% Vdd

-

-

Vdc

2

Disable Voltage - (Vil)

-

-

≤30% Vdd

Vdc

Enable Time

-

-

10

mS

Disable Time

-

-

150

nS

Output Disable Current (lcc)

-

-

10

uA

HCMOS Output Characteristics

Parameter

Minimum

Nominal

Maximum

Units

Notes

Load

-

-

15

pF

Voltage High (Voh)

2.91

-

-

Vdc

Low (Vol)

-

-

0.33

Current High (loh)

-2

-

-

mA

Low (lol)

-

-

2

Duty Cycle at 50% of Vcc

45

50

55

%

Rise / Fall Time 10% to 90%

-

4

6

nS

Start-Up Time

-

-

10

mS

Jitter

(10 Hz to 20 MHz)

-

-

5

(12 kHz to 20 MHz)

-

-

1

pS RMS

Package Characteristics

Package

Hermetically sealed ceramic package and metal cover