CDC1104RVKR

Overview

The CDC1104RVKR is a configurable low-frequency clock buffer manufactured by Texas Instruments. It features one input and four outputs, providing a 1:4 fan-out capability for TTL signals. The device operates within a supply voltage range of 3.8V to 5.5V and supports a maximum frequency of 120 Hz. It is designed for surface-mount assembly in a 12-WQFN package measuring 3x3 mm. The component functions reliably across an extended industrial temperature range from -40°C to +85°C.

Feature Summary

• Configurable 1-to-4 output clock buffering architecture
• TTL-compatible input and output signal levels
• Low-frequency operation with a maximum frequency of 120 Hz
• Compact 12-WQFN (3x3 mm) surface-mount packaging

Applications

• Clock distribution for 3D display systems
• Low-frequency timing synchronization circuits
• Industrial control system clock buffers

Procurement Notes

Verify the supplier-device-package designation as 12-WQFN (3x3) to ensure correct footprint compatibility during PCB layout. Confirm that the operating temperature range meets the specific environmental requirements of the target application, as the device is rated for -40°C to +85°C. Ensure the power supply voltage remains strictly within the 3.8V to 5.5V limits to maintain proper logic level performance.

Selection Notes

Select this component when a single TTL source must drive four separate TTL loads at frequencies up to 120 Hz. The 12-WQFN package is suitable for space-constrained designs requiring surface-mount technology. Verify that the load capacitance and trace lengths are compatible with the low-frequency operation to prevent signal integrity issues.

Part Context

This part belongs to the family of configurable clock buffers designed for low-frequency applications. Unlike high-speed differential buffers, this device focuses on simple TTL fan-out. The 'R' suffix typically indicates the tape and reel packaging format, while 'VKR' specifies the specific 12-WQFN variant and temperature grade.

Replacement Considerations

Direct replacements must support 1:4 TTL fan-out, operate below 120 Hz, and fit the 12-WQFN (3x3) package. Verify pinout compatibility and supply voltage ranges before substitution.