12.9555

Overview

The Geyer Electronic America, Inc. model 12.9555 is a 40 MHz crystal oscillator (XO) operating in standard mode. It utilizes HCMOS output logic and supports a supply voltage range of 1.8V to 3.6V. The device features a tri-state output with an enable function for power management. It is housed in a compact 4-SMD, no-lead package suitable for surface-mount applications.

Feature Summary

• Generates a precise 40 MHz clock signal using HCMOS technology
• Operates within a wide voltage range from 1.8V to 3.6V
• Includes tri-state output capability for system control

Applications

• Clock generation for digital systems
• Synchronization circuits requiring stable timing
• Embedded devices utilizing HCMOS interfaces

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure compatibility with required frequency tolerance and temperature range specifications. Confirm that the 4-SMD no-lead package dimensions match the target PCB footprint. Cross-reference the part number with authorized distributors to validate authenticity and traceability before finalizing procurement orders.

Selection Notes

Select this component when a fixed 40 MHz frequency is required with low-power HCMOS compatibility. Ensure the design accommodates the 1.8V to 3.6V supply range. Consider the tri-state feature if bus contention management or power-down states are necessary for the application architecture.

Part Context

This oscillator belongs to Geyer Electronic America's portfolio of frequency control products, which includes quartz crystals and resonators. The company specializes in timing devices designed for accurate clock generation and synchronization across various electronic industries.

Replacement Considerations

Consult official substitution lists for compatible 40 MHz HCMOS oscillators in 4-SMD packages. Verify electrical parameters such as load capacitance and drive level before replacing.