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Product Detailed Parameters
- Description：7.69 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：7.69 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)：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 18QHTF21-7.690-PD is a crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 7.69 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and features 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. This component is designed for timing applications requiring precise clock signals in space-constrained electronic systems.
Feature Summary
- Supports low voltage operation at 1.8V
- Includes standby mode for power reduction
- Compact surface-mount package design
Applications
- General purpose clock generation
- Embedded system timing
- Portable electronics
Procurement Notes
Verify the specific ordering suffix and frequency tolerance against the official datasheet to ensure compatibility with target circuit requirements. Confirm that the 1.8V supply voltage aligns with the system's power rails. Check for any specific handling instructions related to the no-lead SMD package during assembly processes.
Selection Notes
Select this component when a small form factor oscillator is required for 1.8V logic interfaces. Ensure the 7.69 MHz frequency matches the system clock needs. Consider the standby feature if power efficiency is critical. Verify that the 2.0x1.6mm footprint fits within the PCB layout constraints.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies and voltage options. The series is known for providing reliable timing solutions in a miniature package. The 'PD' suffix typically indicates the presence of a power-down control pin, allowing for active management of the oscillator's state.
FAQ
Does the 18QHTF21-7.690-PD support power-down functionality?
Yes, the datasheet indicates it includes a standby or power-down function.
What is the output logic type for this oscillator?
The device uses LVCMOS (Low Voltage Complementary Metal-Oxide-Semiconductor) output logic.
