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Product Detailed Parameters
- Description：72.4 MHz XO 1.8V 2.0X1.6 MM OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：72.4 MHz
- Function：Enable/Disable
- Output：LVCMOS
- Voltage - Supply：1.8V
- Frequency Stability：±50ppm
- Absolute Pull Range (APR)：-
- Operating Temperature：-40°C ~ 85°C
- Spread Spectrum Bandwidth：-
- Current - Supply (Max)：26mA
- Ratings：-
- Mounting Type：Surface Mount
- Package / Case：4-SMD, No Lead
- Size / Dimension：0.079" L x 0.063" W (2.00mm x 1.60mm)
- Height - Seated (Max)：0.031" (0.80mm)
- Supplier Device Package：-
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Overview
The 18QHTF21-72.400-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 72.4 MHz with a frequency stability of ±50 ppm. The device supports an LVCMOS output format and functions within a supply voltage range of 1.8V. Maximum current consumption is specified at 26 mA. It features an enable/disable control function and is designed for operation across a temperature range of -40°C to +85°C. The component is housed in a compact 4-SMD, No Lead package.
Feature Summary
- Supports LVCMOS output signal format
- Includes hardware enable and disable control functionality
- Operates on a single 1.8V power supply
- Designed for industrial temperature environments
Applications
- General clock generation for digital circuits
- Timing reference for embedded systems
- Communication interface synchronization
Procurement Notes
Verify the specific suffix 'OE' indicates the required enable pin configuration against the official datasheet. Confirm that the 1.8V supply voltage aligns with the target system's power rails. Ensure the 4-SMD no-lead package footprint matches the PCB layout design specifications before finalizing procurement orders.
Selection Notes
Select this component when a precise 72.4 MHz timing source is required for low-voltage logic interfaces. The ±50 ppm stability is suitable for general-purpose applications where high-precision frequency control is not critical. Consider the enable feature if power management during idle states is necessary for the specific application design.
Part Context
This part belongs to the 18QHTF series of surface-mount oscillators from Mercury Electronics. The series typically offers various frequency options and voltage levels. The 18QHTF21 variant specifically denotes the 1.8V supply version with the standard XO function and LVCMOS output characteristics common to this product line.
Replacement Considerations
Direct substitutes include other 72.4 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify compatibility regarding pinout definitions, specifically the enable pin location, and ensure the replacement meets the same ±50 ppm stability and temperature range requirements.
