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Product Detailed Parameters
- Description：57.523667 M XO 1.8V 2.0X1.6MM OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：57.523667 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)：24mA
- 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 18QHTF21-57.523667-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 57.523667 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features enable/disable control functionality. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.
Feature Summary
- Supports LVCMOS output logic for digital interface compatibility
- Includes enable/disable pin control for power management
- Utilizes a surface-mount 4-SMD no-lead package design
Applications
- Digital signal processing circuits requiring precise clock timing
- Communication systems utilizing LVCMOS interfaces
- Embedded systems needing low-voltage clock sources
Procurement Notes
Verify the specific suffix OE against official Mercury Electronics documentation to confirm exact electrical tolerances and temperature ranges. Ensure the 1.8V supply requirement aligns with system power rails. Confirm the 4-SMD package footprint matches PCB layout constraints before finalizing procurement orders.
Selection Notes
Select this component when a fixed 57.523667 MHz clock source is required with LVCMOS outputs. The 1.8V operating voltage suits low-power applications. The enable/disable feature allows for dynamic power control. Verify that the 2.0x1.6mm package size fits within the designated area on the circuit board.
Part Context
This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options. The 18QHTF21-OE variant specifically denotes the 1.8V supply version with enable functionality, distinguishing it from other voltage or logic variants in the product line.
Replacement Considerations
Direct substitutes include the 18QHTF21-57.523667-PD from the same manufacturer, which shares identical electrical specifications and package dimensions. Cross-referencing with other manufacturers requires verifying LVCMOS logic levels, 1.8V supply compatibility, and the 4-SMD footprint.
