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Product Detailed Parameters
- Description：75.69 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：75.69 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)：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 18QHTF21-75.690-PD is a 75.69 MHz crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a supply voltage of 1.8V and utilizes LVCMOS output logic. The device features a standard package with dimensions of 2.0 x 1.6 mm in a surface-mount, no-lead configuration. It supports standby functionality for power management.
Feature Summary
- Supports standby mode for power down operations
- Utilizes LVCMOS output logic interface
- Compact 4-SMD no-lead package design
Applications
- General clock signal generation
- Digital circuit timing references
- Embedded system clock sources
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Confirm that the 1.8V supply voltage aligns with the target system's power rails. Ensure the 2.0x1.6mm footprint matches the PCB layout constraints. Check for any specific handling instructions regarding the no-lead package type during assembly processes.
Selection Notes
Select this component when a low-voltage 1.8V operation is required for clock generation. The compact 2.0x1.6mm size is suitable for space-constrained designs. LVCMOS output compatibility ensures direct interfacing with standard digital logic families. Verify that the 75.69MHz frequency meets the precise timing needs of the application without requiring external dividers.
Part Context
This part belongs to the Mercury Electronics XO series, designed for general-purpose clock applications. The manufacturer specializes in frequency control products, offering various frequencies within this package family. The 'PD' suffix typically indicates specific packaging or processing details defined by the manufacturer.
Replacement Considerations
Direct substitutes must match the 75.69MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm footprint. Cross-reference with other manufacturers offering identical electrical specifications and pinout configurations to ensure functional equivalence in the target circuit.
