ASFLMB-18.432MHZ-LR-T footprint, schematic symbol and 3D model by ABRACON

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ASFLMB-18.432MHZ-LR-T Details

Manufacturer Part Number:
ASFLMB-18.432MHZ-LR-T
Rohs Code:
Yes
Part Life Cycle Code:
Active
Package Description:
ROHS COMPLIANT, ULTRA MINIATURE, PLASTIC, QFN-4
Country Of Origin:
Thailand
Factory Lead Time:
8 Weeks
Manufacturer:
Abracon Corporation
YTEOL:
6.5
Additional Feature:
TRI-STATE; STANDBY; ENABLE/DISABLE FUNCTION; TR; SUPPLY VOLTAGE 1.8V AND 2.5V ALSO AVAILLABLE
Fall Time-Max:
2 ns
Frequency Adjustment-Mechanical:
NO
Frequency Stability:
25%
JESD-609 Code:
e4
Mounting Feature:
SURFACE MOUNT
Number of Terminals:
4
Operating Frequency-Nom:
18.432 MHz
Operating Temperature-Max:
85 °C
Operating Temperature-Min:
-40 °C
Oscillator Type:
CMOS
Output Load:
10 KOHM, 15 pF
Package Body Material:
PLASTIC/EPOXY
Physical Dimension:
5.0mm x 3.2mm x 0.85mm
Rise Time-Max:
2 ns
Supply Voltage-Nom:
3.3 V
Surface Mount:
YES
Symmetry-Max:
55/45 %
Terminal Finish:
Nickel/Palladium/Gold (Ni/Pd/Au)

Abracon recommends a symmetrical PCB layout with a solid ground plane, and the oscillator should be placed as close as possible to the microcontroller or IC. A minimum of 2-layer PCB is recommended, with the oscillator on the top layer and the ground plane on the bottom layer.
To ensure the oscillator starts up correctly, Abracon recommends applying power to the device slowly (dv/dt < 10V/ms) and ensuring that the power supply is stable and noise-free. Additionally, the oscillator should be decoupled from the power supply with a 10nF to 100nF capacitor.
The ASFLMB-18.432MHZ-LR-T has an operating temperature range of -40°C to +85°C, but it's recommended to operate within -20°C to +70°C for optimal performance and reliability.
Abracon recommends handling the oscillator with ESD-protective equipment and following proper ESD handling procedures to prevent damage. The oscillator has an internal ESD protection diode, but it's not a substitute for proper ESD handling practices.
Abracon recommends storing the oscillator in a dry, cool place (temperature range: -20°C to +40°C, humidity < 60%) and away from direct sunlight. The oscillator should be stored in its original packaging or a similar ESD-protective package.

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