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Infineon Technologies CY29775AI — Clock & Timing ICs
Infineon Technologies

CY29775AI Spread Aware Clock Driver, 200 MHz, 52-TQFP

MPNCY29775AI
End of Life

Cypress Spread Aware™ CY29775AI, PLL-based fanout distribution / zero delay buffer, 200 MHz max, LVCMOS I/O, 2:14 input-to-output ratio, 52-TQFP, industrial temp -40°C to 85°C.

$3.37Ref. price · indicative, final on quote
CY29775AI datasheet
Packaging52-TQFP
StockContact for availability
MOQ1 pcs
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Specifications

CY29775AI Technical Specifications
ParameterValue
TypeFanout Distribution, Zero Delay Buffer
SeriesSpread Aware™
Mounting typeSurface Mount
Voltage2.375V ~ 3.465V
Frequency200MHz
Operating temperature-40°C ~ 85°C (TA)
PLLYes with Bypass
InputLVCMOS
OutputLVCMOS
PackageBulk
Case52-TQFP
Divider (Multiplier)Yes/No
Number of circuits1
Ratio - Input:Output2:14
Differential - Input:OutputNo/No

Product details

The CY29775AI is a PLL-based clock driver from Cypress, part of the Spread Aware™ family. It functions as both a fanout distribution buffer and a zero delay buffer, taking a single LVCMOS input and distributing it across 14 outputs with controlled skew. The integrated PLL can be bypassed, letting you switch between zero-delay synthesis and simple fanout modes without a board change. The 52-TQFP package (10x10 mm) keeps the footprint compact for dense backplane designs.

The Spread Aware™ PLL tracks spread-spectrum clock inputs without losing lock. This preserves EMI reduction at the board level.

2:14 fanout — routing for a 14-load clock tree

The 2:14 input-to-output ratio provides two input pins and 14 LVCMOS outputs. All outputs share one PLL, so output-to-output skew is deterministic.

Lifecycle and sourcing posture

RoHS non-compliant — this part uses lead-bearing solder terminals. If your assembly line requires Pb-free reflow, verify your exemption or plan for a hand-solder / selective-solder step. No direct RoHS-compliant equivalent is listed in the family, so a cross-ship with a lead-free clock buffer may require a different footprint.

Frequently asked questions

Is CY29775AI suitable for zero delay buffer applications?

Yes. The device type is explicitly listed as a Zero Delay Buffer, and the PLL can be bypassed if you need simple fanout instead. The 2:14 ratio and 200 MHz ceiling cover most telecom and industrial clock trees.

Is CY29775AI RoHS compliant?

No. Plan for leaded solder processes or a RoHS exemption.

What is the equivalent or alternative to CY29775AI?

The CY2305SXI-1HT is a functional alternative from the same Cypress family: it is also a fanout buffer / zero delay buffer, but with a 1:5 ratio, 133.33 MHz max frequency, and a 3.0 V supply only. The CY29775AI offers more outputs (14 vs 5), higher frequency (200 MHz vs 133.33 MHz), and a wider supply range (2.375 V to 3.465 V). The CY2305SXI-1HT comes in a smaller package (8-SOIC) and is RoHS compliant — trade-offs depend on your output count and assembly requirements.