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Product Detailed Parameters
- Description：8.9152 MHz XO 1.8V 2.0X1.6 MM PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：8.9152 MHz
- Function：Standby (Power Down)
- 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)：21mA
- 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 18QHTF21-8.9152-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 8.9152 MHz and utilizes LVCMOS output logic levels. The device is designed for a supply voltage of 1.8V and features a power-down capability via a standby control pin. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.
Feature Summary
- Supports low-voltage operation at 1.8V
- Includes standby mode for power management
- Utilizes LVCMOS output interface
Applications
- Portable electronic devices requiring low power consumption
- Communication systems utilizing standard clock frequencies
- Embedded circuits needing precise timing references
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints. Check for any specific handling instructions regarding electrostatic discharge protection during assembly.
Selection Notes
Select this component when a stable 8.9152 MHz reference is required in space-constrained applications. The 1.8V operating voltage makes it suitable for modern low-power digital logic families. The integrated power-down feature allows for energy efficiency in battery-operated devices. Consider the thermal characteristics and stability specifications if operating in varying environmental conditions.
Part Context
This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various standard frequencies within a small form factor. These components are designed to replace through-hole crystals with integrated oscillator solutions, simplifying PCB design and improving reliability in high-volume manufacturing environments.
Replacement Considerations
Direct replacements must match the 8.9152 MHz frequency, 1.8V supply, and 4-SMD 2.0x1.6mm package. Verify compatibility of LVCMOS output drive strength and current consumption. Ensure substitute parts support the same standby control functionality for power management integration.
