Infineon Technologies CY23S08SC-1H — Clock & Timing ICs
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RoHS Compliant · Lead-Free EIA-481 Standard
Infineon Technologies / Clock & Timing ICs

Cypress CY23S08SC-1H Clock Buffer, Zero Delay Buffer

MPN CY23S08SC-1H
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Cypress CY23S08SC-1H, PLL-based zero delay clock buffer, 1:8 LVCMOS fanout, 140 MHz max, 3V–3.6V supply, 16-SOIC, 0°C to 70°C.

In Stock: 8,323 pcs
MOQ: 1 pcs
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[SPEC] Essential Parameters Snapshot Full Specifications (14)
Package / Case 16-SOIC (0.154", 3.90mm Width)
Supply Voltage 3V ~ 3.6V

Full Technical Specifications

14 Parameters
CY23S08SC-1H specifications
Parameter / AttributeSpecification / Value
TypeClock Buffer, Zero Delay Buffer
MountingSurface Mount
Supply voltage3V ~ 3.6V
Frequency - max140MHz
Operating temperature0°C ~ 70°C (TA)
PLLYes with Bypass
InputLVCMOS, LVTTL
OutputLVCMOS
PackageBulk
Case16-SOIC (0.154\", 3.90mm Width)
Divider (Multiplier)Yes/No
Number of circuits1
Ratio - Input:Output1:8
Differential - Input:OutputNo/No
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Technical Details & Description

PLL-based zero delay buffer with 1:8 fanout

The Cypress CY23S08SC-1H is a PLL-based zero delay clock buffer that takes a single LVCMOS or LVTTL input and distributes it to eight LVCMOS outputs with near-zero propagation delay. The integrated PLL includes a bypass mode, letting you feed the reference clock straight through when the phase-alignment loop is not needed. Maximum output frequency is 140 MHz, which sets the ceiling for the clock trees this part can serve — PCI, Ethernet, or general-purpose synchronous logic up to that speed.

Supply and temperature — fit for indoor digital boards

The single-circuit design serves one clock domain.

Surface-mount assembly keeps the part compatible with reflow processes. The supplier device package is 16-SOIC; no differential I/O on this variant, so it is strictly single-ended clock distribution.

RoHS non-compliant per the original release; if your BOM requires RoHS conformance, verify the revision or plan for a lead-free alternate.

Frequently asked questions

Does CY23S08SC-1H have a PLL?

Yes, the CY23S08SC-1H integrates a PLL with a bypass mode. The PLL phase-aligns the outputs to the input for zero-delay operation; bypass mode feeds the reference clock straight through when the loop is not needed.

What is the equivalent or replacement for CY23S08SC-1H?

The closest functional peer is the CY2305SXI-1HT, which is also a PLL-based zero delay buffer but with a 1:5 fanout ratio and an industrial temperature range of -40°C to 85°C. The CY23S08SC-1H offers a wider 1:8 fanout but only commercial temperature range. If you need the wider fanout and can accept the commercial temperature range, the CY23S08SC-1H is the right fit.

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