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Product Detailed Parameters
- Description：8.192 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：8.192 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 18QHTF21-8.192-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 8.192 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0mm x 1.6mm.
Feature Summary
- Integrates LVCMOS output logic for standard digital interface compatibility
- Features a dedicated standby mode to reduce power consumption during idle periods
- Utilizes a small-footprint surface-mount package suitable for space-constrained designs
Applications
- Clock signal generation for embedded systems
- Timing reference for microcontrollers and processors
- Data communication interface synchronization
Procurement Notes
Verify the specific suffix 'PD' confirms the power-down capability when reviewing datasheets. Ensure the 1.8V supply requirement aligns with the target circuit design. Confirm the 4-SMD no-lead package type matches the PCB footprint requirements before ordering.
Selection Notes
Select this component when a precise 8.192 MHz timing source is required with low power consumption capabilities. The LVCMOS output ensures direct interfacing with standard logic families. Consider the 1.8V operating voltage constraint and the physical size limitations of the 2.0x1.6mm package during the design phase.
Part Context
This part belongs to the 18QHTF21 series of clock oscillators from Mercury Electronics. The series offers various frequencies and voltage options. The 'PD' suffix typically denotes the inclusion of a power-down control feature, distinguishing it from standard continuous-operation variants within the same family.
Replacement Considerations
Direct substitutes must match the 8.192 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package dimensions. Verify pinout compatibility and electrical specifications against original datasheets before substitution.
