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Product Detailed Parameters
- Description：13.40155 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：13.40155 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)：22mA
- 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 18QHTF21-13.40155-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 13.40155 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a Standby (Power Down) control function to manage power consumption. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.
Feature Summary
- LVCMOS output logic for digital interface compatibility
- Integrated standby mode for power management
- Compact surface-mount form factor
Applications
- Digital signal processing systems
- Communication equipment clocking
- Embedded microcontroller timing sources
Procurement Notes
Verify the specific suffix PD indicates the Standby (Power Down) control feature when sourcing replacements. Confirm that the 1.8V supply voltage requirement aligns with the target system design. Ensure the 4-SMD No Lead package footprint matches the PCB layout constraints. Cross-reference the 13.40155 MHz frequency specification against application requirements.
Selection Notes
Select this component when a precise 13.40155 MHz reference is required with low-power standby capabilities. The LVCMOS output ensures direct interfacing with standard digital logic families. Consider the 1.8V operating voltage for compatibility with modern low-voltage integrated circuits. The small 2.0x1.6mm package is suitable for space-constrained designs.
Part Context
This model belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options. The PD suffix specifically denotes the inclusion of a power-down pin or control mechanism, distinguishing it from models without standby functionality.
Replacement Considerations
Direct substitutes must match the 13.40155 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package. Verify that any replacement also includes the Standby (Power Down) control feature indicated by the PD suffix.
