CY2309ZXC-1HT
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 16-TSSOP (0.173", 4.40mm Width) |
| Mfr | Infineon Technologies |
| Mounting Type | Surface Mount |
| Operating Temperature | 0°C ~ 70°C |
| Type | Fanout Buffer (Distribution), Zero Delay Buffer |
| Number of Circuits | 1 |
| Output | LVCMOS |
| Supplier Device Package | 16-TSSOP |
| Input | LVCMOS, LVTTL |
| Voltage - Supply | 3V ~ 3.6V |
| Ratio - Input:Output | 1:9 |
| PLL | Yes with Bypass |
| Differential - Input:Output | No/No |
| Divider/Multiplier | No/No |
| Frequency - Max | 133.33MHz |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | CY2309 |
| REACH Status | REACH Unaffected |
| Standard Package | 2,500 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
CY2309ZXC-1HT 3.3V Zero Delay Clock Buffer IC 133.33MHz 1 16-TSSOP
The CY2309ZXC-1HT is a low-cost, high-performance 3.3V Zero Delay Clock Buffer designed for precise clock distribution in digital systems requiring minimized signal skew and propagation delay. Featuring a single input to nine output (1:9) fanout ratio, this device utilizes an integrated Phase-Locked Loop (PLL) to align the phase of its outputs with the input clock, effectively achieving "zero" propagation delay under locked conditions. Manufactured initially by Cypress Semiconductor (now under Infineon Technologies), it accepts LVCMOS/LVTTL inputs and delivers nine LVCMOS outputs, making it an essential component for maintaining synchronization and signal integrity across multiple loads in networking, computing, and communication equipment.
CY2309ZXC-1HT Functional Operation and Applications
The core of the CY2309ZXC-1HT's functionality is its internal PLL, which locks to the incoming reference clock and drives the voltage-controlled oscillator (VCO) to generate multiple low-skew output copies. An external feedback pin (FBK) is typically connected to one of the outputs, allowing the PLL to compensate for any board-level trace delays and achieve true zero delay at that specific load point. This architecture is ideal for applications such as driving multiple high-speed memory modules (e.g., SDRAM arrays), distributing clocks to various processors or ASICs on a motherboard, or serving as a clean clock fanout buffer in telecommunication line cards where timing alignment is critical.
Alternative Cypress Clock Buffer Models
● CY2308SXC-1 (Infineon Technologies): An 8-output zero-delay buffer in an SOIC-16 package, offering similar PLL-based functionality but with one fewer output channel and a different footprint.
● IDT2309B-1HPG8 (Integrated Device Technology): A 9-output zero-delay buffer from a different major supplier, providing a direct second-source alternative with a TSSOP-16 package for pin-compatible replacement.
● MC100LVEL14DWR2G (onsemi): A 3.3V ECL 1:5 clock distribution chip offering very high-speed, differential signal capability for applications requiring ECL logic levels, though with a different interface standard and pinout.
