ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：7.654321 MHz XO 1.8V 2.0X1.6 PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：7.654321 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：-
Download product information
Overview
The 18QHTF21-7.654321-PD is a 7.654321 MHz crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a supply voltage of 1.8V and utilizes LVCMOS output logic. The device features an enable/disable function with standby power-down capability, making it suitable for low-power applications. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0mm x 1.6mm.
Feature Summary
- Operates at a precise frequency of 7.654321 MHz with LVCMOS output logic
- Supports 1.8V supply voltage for efficient power management
- Includes enable/disable functionality with standby power-down mode
Applications
- Battery-powered portable devices requiring low current consumption
- Handheld label printers and similar mobile equipment
- Systems needing precise frequency control with minimal power draw
Procurement Notes
Verify the specific ordering suffix to ensure compatibility with required enable/disable or standby functions. Confirm that the 1.8V supply voltage aligns with the target system design. Check the package type to ensure it matches the PCB footprint requirements. Review the datasheet for exact electrical specifications before integration.
Selection Notes
Select this component when a stable 7.654321 MHz clock source is needed with strict power constraints. The 1.8V operation makes it ideal for modern low-voltage digital circuits. Consider the small 2.0x1.6mm package size for space-constrained designs. Ensure the LVCMOS output level is compatible with the receiving logic inputs.
Part Context
This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies and supply voltages, typically utilizing LVCMOS outputs. The 'PD' suffix indicates specific power-down or standby capabilities within the product line.
Replacement Considerations
Direct substitutes include other 7.654321 MHz XO models with 1.8V LVCMOS outputs and identical 4-SMD footprints. Verify pinout compatibility and electrical parameters such as load capacitance and drive strength before replacement.
