CY29946AXI

Clock Buffers, Drivers Overview

The CY29946AXI is a low-voltage clock distribution buffer supporting 2.5 V or 3.3 V operation with a maximum frequency of 200 MHz. It features two LVCMOS/LVTTL-compatible inputs and ten LVCMOS/LVTTL-compatible outputs, providing a 1:10 fanout ratio. The device supports configurable 1× or 1/2× output ratios and includes three-state control via the MR/OE# pin. It operates within an industrial temperature range of -40°C to +85°C and is housed in a 32-pin TQFP package.

Clock Buffers, Drivers Feature Summary

• Supports 200 MHz clock frequencies with 2.5 V or 3.3 V supply voltages
• Features two selectable LVCMOS/LVTTL inputs and ten LVCMOS/LVTTL outputs
• Provides configurable 1× or 1/2× output divider ratios
• Includes three-state output control and max 250-ps output-to-output skew

Clock Buffers, Drivers Applications

• Clock distribution in high-speed digital systems
• Test clock generation and primary system clock routing
• Driving series or parallel terminated transmission lines

Clock Buffers, Drivers Procurement Notes

Verify component authenticity as Infineon continues to support existing part numbers from the Cypress portfolio. Confirm that the specific ordering suffix matches the required packaging (Tube vs. Tape and Reel) and temperature grade (Industrial). Check for current availability status as the product may be subject to discontinuation notices.

Clock Buffers, Drivers Selection Notes

Select the CY29946AXI when a 1:10 fanout buffer with dual input selection is required. Ensure the design utilizes 2.5 V or 3.3 V logic levels compatible with LVCMOS/LVTTL standards. Verify that the 250-ps skew specification meets the timing requirements of the target application compared to other buffer families.

Clock Buffers, Drivers Part Context

The CY29946AXI belongs to the CY29946 family of clock distribution buffers originally developed by Cypress Semiconductor Corporation. Following Infineon Technologies' acquisition of Cypress, this component remains part of the Infineon product portfolio. The 'AXI' suffix denotes the Industrial temperature range (-40°C to +85°C) and the 32-pin TQFP package configuration.

Clock Buffers, Drivers Replacement Considerations

The datasheet indicates the device is pin-compatible with MPC946 and MPC9446. These parts may serve as direct replacements in existing designs requiring identical pinouts and functionality.