Infineon Technologies CY23FP12OXC-003

Overview

CY23FP12OXC-003 from Cypress Semiconductor is a field-programmable zero-delay clock buffer with integrated PLL, delivering twelve low-skew LVCMOS outputs (six per bank), 35 ps typical output-to-output skew, 110 ps cycle-cycle jitter, and dual 2.5 V/3.3 V supply support for independent bank voltage control. It operates from 10 MHz to 200 MHz and is used in high-performance ASIC/microprocessor reference clock distribution systems requiring phase alignment and fault-tolerant switchover.

For engineers reviewing the CY23FP12OXC-003 datasheet, CY23FP12OXC-003 pinout, CY23FP12OXC-003 application, or CY23FP12OXC-003 equivalent, key selection criteria include programmable input/output dividers (M/N/X), S1/S2-selectable four-function personalities, REFSEL-based dual-reference switchover, auto power-down on REF failure, and bank-level three-state control for EMI reduction.

Technical Context

The CY23FP12OXC-003 implements a fully programmable PLL architecture with user-configurable M (1–256) and N (1–256) dividers, enabling precise frequency synthesis between 10 MHz and 200 MHz. Its feedback path supports internal (CLKA0) or external topology, and lock detection is embedded in the PLL control logic.

It features two independent output banks (A and B), each with six LVCMOS outputs, separate VDD/VSS rails (2.5 V or 3.3 V), individual output enable/inversion per pair, and S1/S2-driven configuration switching across four preprogrammed functional sets-including direct REF pass-through, PLL-enabled synthesis, and mixed-source operation.

Key Specifications

Pinout & Package

28-pin SSOP package with exposed pad (non-thermal), 0.635 mm pitch, 10.16 mm × 5.33 mm body size. Dual-bank power architecture isolates Bank A (pins 17, 21, 20, 24), Bank B (pins 8, 12, 5, 9), and core (pins 13, 16).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar zero-delay clock buffer applications.

Compared with IDT5V9885BGI and NB3N502FG, the CY23FP12OXC-003 uniquely combines field programmability, dual-reference switchover, bank-isolated voltage control, and auto power-down-enabling one device to replace multiple fixed-function buffers in evolving, high-reliability clock architectures.

Availability

CY23FP12OXC-003 is available at Aetrix Electronics and suitable for high-speed microprocessor clock distribution, ASIC reference clock synthesis, and redundant system clock switchover requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across temperature and voltage.

Supply support for CY23FP12OXC-003 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Cypress Semiconductor (now part of Infineon Technologies) is a fabless semiconductor company specializing in programmable system-on-chip (PSoC), memory, and timing solutions for industrial, automotive, and consumer applications.

The CY23FP12 product line delivers field-programmable clock distribution ICs optimized for high-speed digital systems requiring jitter-critical, multi-output, and fault-resilient timing-targeting ASIC, FPGA, and microprocessor-based platforms.

FAQ

What programming tools are required to configure the CY23FP12OXC-003?

The CY23FP12OXC-003 must be programmed before mounting using a flash programmer. Cypress's CY3672-USB Development Kit with CY3692 Socket Adapter supports sample and prototype programming. For production, third-party programmers from BP Microsystems and HiLo Systems are qualified. Configuration is defined via CyberClocks software, which generates JEDEC files specifying M/N/X dividers, output inversions, drive strength, and S1/S2 personality mapping.

Does the CY23FP12OXC-003 support spread-spectrum clocking (SSC)?

Yes-the CY23FP12OXC-003 is spread-spectrum aware. Its PLL architecture and internal filtering are designed to maintain low jitter and stable lock even when driven by spread-spectrum reference inputs, making it suitable for EMI-sensitive applications such as notebook platforms and PCIe add-in cards where SSC is mandated.

How does the REFSEL pin enable glitch-free clock switchover?

When REFSEL transitions, the device synchronously switches the active reference input (REF1 or REF2) while maintaining PLL lock state and output phase continuity. The internal logic ensures that the selected REF is validated for stability before routing, preventing runt pulses or phase discontinuities-critical for telecom and broadcast equipment with strict uptime requirements.

Can the CY23FP12OXC-003 operate without an external crystal or oscillator?

No-it requires an external LVCMOS/LVTTL reference clock (10–200 MHz) applied to REF1 or REF2. It does not contain an internal oscillator or crystal driver. The device functions as a programmable buffer/synthesizer, not a standalone clock generator; all timing originates from the supplied reference input.