Infineon Technologies CY22392ZXC-345

Overview

CY22392ZXC-345 from Cypress Semiconductor is a three-PLL, flash-programmable clock generator in 16-pin TSSOP packaging, operating at 3.3 V. It delivers up to six configurable clock outputs (CLKA–CLKE, XBUF) with frequencies up to 200 MHz (commercial), supports external crystal (8–30 MHz) or driven reference (up to 166 MHz), and features ultra-wide programmable dividers (11-bit P, 8-bit Q per PLL) plus 7-bit post-dividers for precise frequency synthesis in high-end multimedia and communications systems.

For engineers reviewing the CY22392ZXC-345 datasheet, CY22392ZXC-345 pinout, CY22392ZXC-345 application, or CY22392ZXC-345 equivalent, key selection criteria include its triple-PLL architecture, field-programmable flash memory, 3-bit external frequency select (S0/S1/S2), low-jitter performance (≤400 ps pk-pk), and configurable crystal drive strength for broad oscillator compatibility.

Technical Context

The CY22392ZXC-345 integrates three independent PLLs-each with 11-bit feedback (P) and 8-bit input (Q) dividers-feeding a 4×4 crosspoint switch that routes reference, PLL1, PLL2, or PLL3 to four 7-bit post-divided outputs (CLKA–CLKD). CLKE derives directly from PLL1 with /2, /3, or /4 synchronous division, while XBUF provides buffered reference output.

Frequency selection is controlled via three LVTTL inputs (S0/S1/S2), enabling eight glitch-free configurations for PLL1 frequency and CLKA/CLKB divider register selection. Crystal load capacitance is programmable from 6 pF to 30 pF in 0.375 pF steps using on-die linear capacitors, and the oscillator drive strength is configurable to match diverse crystal characteristics.

Key Specifications

Pinout & Package

Package: 16-pin TSSOP (4.4 mm × 5.0 mm, 0.65 mm pitch), RoHS-compliant, surface-mountable with standard reflow profiles.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar clock generator applications.

Compared with Si5338A-D-GM and ICS8430I-01LFT, the CY22392ZXC-345 uniquely combines flash-based field programmability, on-die crystal load tuning, and triple-PLL flexibility-making it optimal for prototyping, multi-configurable platforms, and applications demanding long-term supply continuity without firmware dependencies.

Availability

CY22392ZXC-345 is available at Aetrix Electronics and suitable for high-speed data acquisition, multimedia SoC timing, industrial Ethernet switches, and FPGA-based programmable logic systems requiring stable component supply, long-lifecycle availability, and field-reprogrammable clocking.

Supply support for CY22392ZXC-345 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 markets.

The CY22392 product line was designed to replace legacy clock generators with field-programmable flash-based architectures, targeting applications needing rapid design iteration, multi-frequency flexibility, and reduced component count in space-constrained systems.

FAQ

What programming tools are required to configure the CY22392ZXC-345?

The CY22392ZXC-345 is programmed using Cypress's CyClocksRT™ software (free download from infineon.com), which generates .jed files. Small-batch programming uses the CY3672 development kit with CY3698 adapter; volume programming is supported by BP Microsystems and HiLo Systems programmers. Pre-programmed units are available with custom part-number extensions.

Can the CY22392ZXC-345 accept a 100 MHz driven reference clock?

Yes-the device accepts driven reference clocks from 1 MHz to 166 MHz (commercial) or 150 MHz (industrial), provided the input duty cycle is 40–60% and measured at VDD/2. When using a driven clock, XTALOUT must be left floating and on-die crystal load capacitors are bypassed automatically.

How does the S2/SUSPEND pin differ from SHUTDOWN/OE?

S2/SUSPEND is configurable via internal registers to selectively suspend individual PLLs or outputs without powering down the entire device-preserving configuration and enabling fast wake-up. SHUTDOWN/OE forces full chip shutdown (IDDS ≤ 5 μA) and resets PLL lock state; relock time is 1–3 ms after exit.

Is the CY22392ZXC-345 qualified for industrial temperature operation?

Yes-the CY22392ZXC-345 is specified for –40°C to +85°C ambient operation, with validated electrical performance including 166 MHz max output frequency, 50–100 mA typical supply current, and 400 ps jitter across the full range. Junction temperature must remain ≤125°C, verified using CyClocksRT power estimation.