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Product Detailed Parameters
- Description：12.688375 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：12.688375 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)：22mA
- 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 18QHTF21-12.688375-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 12.688375 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD, no lead package, designed for surface-mount applications requiring precise timing signals.
Feature Summary
- Supports LVCMOS output logic for digital interface compatibility
- Includes enable/disable control functionality for power management
- Utilizes a 4-SMD no lead package for surface-mount integration
Applications
- General purpose clock signal generation
- Digital circuit timing reference
- Embedded system clock sources
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against the target application design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the LVCMOS output swing is compatible with the receiving logic inputs to guarantee reliable signal integrity during operation.
Selection Notes
Select this component when a low-voltage 1.8V supply is required for the oscillator circuit. The LVCMOS output is suitable for standard digital logic families. Consider the 4-SMD package size constraints and the need for an enable pin to manage power consumption in battery-operated or standby-sensitive designs.
Part Context
This part belongs to the 18QHTF21 series of standard oscillators from Mercury Electronics. The series offers various frequencies with consistent electrical characteristics. The -OE suffix typically denotes specific packaging or tape-and-reel options within the manufacturer's catalog structure.
Replacement Considerations
Direct substitutes include other 12.688375 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pinout compatibility and enable logic polarity. Cross-reference with similar Mercury models like the 18QHTF21-12.688375-PD if package variations are acceptable.
