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Product: XO (Clock Oscillator)
Series: HM
Oscillator Type: Low EMI Spread Spectrum Clock Oscillators
Selection Guide - Group R Specifications - Group P Specifications - Product Support
• Reduce EMI by >12 dBc without changing your board layout.
• Drop-in replacement. Reduce time-to-market. 
• Wide frequency range. +3.3 V supply voltage. 
• Low jitter. Group P is ±100 ps typical; Group R is ±250 ps typical.

Example of 27 MHz with center spread ± 1.5%.  SSC: Spread Spectrum Clock.
Product Support:

Engineering:

Technical Note: TN-020 Low EMI Spread Spectrum Clock Oscillators (pdf, 333.3K)
Difference between group "P" and group "R"
Spread Spectrum Calculations: P-series (Input your frequency in MHz)
EMI Reduction Results Examples

HM57 Group P IBIS Model (Right-click to Save)

HM57 Group P IBIS Model (Right-click to Save)

Series Frequency Range
3HM57-R-1.ibs 3.6 MHz ~ 10 MHz
3HM57-R-2.ibs 10.01 MHz ~ 32 MHz
3HM57-R-3.ibs 32.01 MHz ~ 66 MHz
3HM57-R-4.ibs 66.01 MHz ~ 160 MHz

HM53 Group R IBIS Model (Right-click to Save):
Series Frequency Range
3HM53-R-1.ibs 6 MHz ~ 12 MHz
3HM53-R-2.ibs 12.01 MHz ~ 32 MHz
3HM53-R-3.ibs 32.01 MHz ~ 66 MHz
3HM53-R-4.ibs 66.01 MHz ~ 160 MHz

Distributor Stock Availability Check
Click anywhere on the row to check stock available at Newark InOne.
If you don't find what you need, please contact us.

Distributor Stock Check for Component Distributors, Inc.
Group R
MEC P⁄N Frequency (MHz) Spread Type Spread Percentage Newark P/N
Newark InOne
3HM57-BT-10.000R-C1.5 10  Center ±1.5% 97H1457
3HM57-BT-100.000R-C1.5 100  Center ±1.5% 97H1458
3HM57-BT-120.000R-C1.5 120  Center ±1.5% 97H1459
3HM57-BT-125.000R-C1.5 125  Center ±1.5% 97H1460
3HM57-BT-14.31818R-C1.5 14.31818 Center ±1.5% 97H1461
3HM57-BT-24.000R-C1.5 24 Center ±1.5% 97H1462
3HM57-BT-24.576R-C1.5 24.576 Center ±1.5% 97H1463
3HM57-BT-25.000R-C1.5 25 Center ±1.5% 97H1464
3HM57-BT-32.768R-C1.5 32.768 Center ±1.5% 97H1465
3HM57-BT-40.000R-C1.5 40 Center ±1.5% 97H1466
3HM57-BT-44.000R-C1.5 44 Center ±1.5% 97H1467
3HM57-BT-48.000R-C1.5 48 Center ±1.5% 97H1468
Component Distributors, Inc.
HM Series Data Sheets: (by package and supply voltages)
Package
Photo
Product Series
Group Supply
Voltage
Freq. min.
(MHz)
Freq. max.
(MHz)
No. of pins
or pads
Package Size (mm) /
Description  / Features
3HM53-R  R  3.3 V  5.64 160 4  5x3.2x1.2 ceramic SMD.
  First in the industry.
3HM57-R  R  3.3 V  3.6864  160 4  5x7x1.8 ceramic SMD.
3HM57-P  P  13.0  240
3HM14-R  R  3.3 V  5.64  160 4  Full Size 4  pin  DIP
3HM14-P  P  13.0  240
3HM24-R  R  3.3 V  3.6864  160 4  Full Size 4  pin Gull  Wing
3HM24-P  P  13.0  240
3HM8-R  R  3.3 V  5.64  160 4  Half Size 4  pin DIP
3HM8-P  P  13.0  240
3HM18-R  R  3.3 V  3.6864  160 4  Half Size 4  pin Gull Wing
3HM18-P  P  13.0  240
3HM42-R  R  3.3 V  5.64  160 4  9.6x11.4x2.5 mm FR4
  substrate SMD
3HM42-P  P  13.0  240
3HM44-R  R  3.3 V  3.6864  160 4  9.6x11.4x4.7 mm FR4
  substrate SMD
General Specifications- Group R:
   TA=+25°C, VDD= at specified voltage, Load: 15 pF
Mercury Model HM Series (spec. for Group R)
Frequency Range 3.6864 ~160.0 MHz
Spread Type Total % Down Spread(D) Center Spread(C)
Spread Percentage

(Part number suffix)
(tolerance: ±2% of the total %
0.5% -0.5%(D0.5)
Not available if Tri-state chosen
±0.25% (C0.25)
Not available if Tri-state chosen
1% -1% (D1) ±0.5 (C0.5)
3% -3% (D3) ±1.5 (C1.5)
EMI Reduction

(Reduction is applied to the
entire frequency spectrum) 
-7 dBc min. 100 MHz at C0.25
-9 dBc min. 100 MHz at C0.5
-15 dBc min. 100 MHz at C1.5
(dBc: with respect to no modulation)
Frequency and total % spread dependent. Call for details.
Modulation Carrier Frequency
(Dither rate)
8.3 KHz min.; 55.5 KHz max.;
Frequency dependent. Call for details.
Output Logic CMOS Square Wave
Input Voltage (VDD) VDD = +3.3 V D.C. ±5%
Frequency Stability
(exclude modulation)
Commercial (0C to +70C):
A: ±25 ppm ;  B: ±50 ppm;  C:±100 ppm
Industrial (-40C to +85C):
D: ±25 ppm ;  E: ±50 ppm;  F:±100 ppm
Output Voltage High: 1 2.0 V min.; 3.2 V typical (at 90% VDD)
Output Voltage Low: 0 0.8 V max. ; 0.2 V typical (at 10% VDD)
Rise Time / Fall Time 4 n sec. max. (10% VDD ↔ 90% VDD)
Load 15 pF
Start-up Time 2 ms typical; 5 ms max.
Current Consumption 10.0 MHz: 7 mA; 32.768 MHz: 8 mA
75.0 MHz: 17 mA; 125 MHz:  18 mA
Duty Cycle 50%±5%. ( CL=15 pF ;at 50% VDD)
Cycle-to-Cycle Jitter ±250 ps typical; ±300 ps max.
Output Impedance 40 ohms
Static Discharge Voltage >2000 V (per MIL-STD-883, method 3015)
Storage Temperature -65C to +150C
Aging ±5 ppm per year max.;  Ta=+25C
Packaging 16 mm tape and reel. 1000 pcs per reel
Pin 1 Option 100 KΩ internal pull-up. Output is high impedance when taken low.
Output enable disable time: 100 ns max.
General Specifications- Group P:
   TA=+25°C, VDD= at specified voltage, Load: 15 pF
Mercury Model HM Series (spec. for group P)
Frequency Range 13.0 ~220.0 MHz
Spread Type and % Total % Down Spread (D) Center Spread (C)
Spread Percentage(1)

(Part number suffix)
Tolerance: ±30% of the total %
0.5%  -0.5% (D0.5) ±0.25% (C0.25)
0.75%  -0.75% (D0.75) ±0.375% (C0.375)
1.25% -1.25% (D1.25) ±0.625 (C0.625)
2% -2% (D2) ±1.0 (C1.0)
2.5% -2.5% (D2.5) ±1.25 (C1.25)
3% -3% (D3) ±1.5 (C1.5)
3.5% -3.5% (D3.5)   ±1.75 (C1.75)
3.75% -3.75% (D3.75)  ±1.875 (C1.875)
EMI Reduction

(Reduction is applied to the
entire frequency spectrum) 
EMI reduction (dB) = 10Log("Total %"x"SSC Frequency(MHz)"/0.12).
Modulation Carrier Frequency
(Dither rate)
25.3 KHz min.; 58.6 KHz max.
Frequency dependent. Call for details.
Output Logic CMOS Square Wave
Input Voltage (VDD) VDD = +3.3 V D.C. ±5%
Frequency Stability
(exclude modulation)
Commercial (0°C to +70°C):
A: ±25 ppm ;  B: ±50 ppm;  C:±100 ppm
Industrial (-40°C to +85°C):
D: ±25 ppm ;  E: ±50 ppm;  F:±100 ppm
Output Voltage High: 1 2.4 V min.;(at 80% VDD)
Output Voltage Low: 0 0.4 V max. (at 20% VDD)
Rise Time / Fall Time 1.2 n sec. max. (20% VDD ↔ 80% VDD)
Load 15 pF
Start-up Time 2 ms typical; 5 ms max.
Current Consumption 25 mA typical; Frequency dependent
Duty Cycle 50%±5%. ( CL=15 pF ;at 50% VDD)
Cycle-to-Cycle Jitter ±100 ps typical;±150 ps max.
Output Impedance 40 ohms typical
Static Discharge Voltage >2000 V (per MIL-STD-883, method 3015)
Storage Temperature -65°C to +150°C
Aging ±5 ppm per year max.;  TA=+25°C
Packaging 16 mm tape and reel. 1000 pcs per reel
Option on Pad 1 No Option available. Do not connect.
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