Cypress CY22381SI-146

Overview

The CY22381SI-146 is the next-generation programmable Flash programmable clock for use in networking, telecommunication, datacom, and other general-purpose applications. The CY22381SI-146 offers up to three configurable outputs in a 8-pin SOIC, running off a 3.3 V power supply. The on-chip reference oscillator is designed to run off an 8–30-MHz crystal, or a 1–166-MHz external clock signal. The CY22381SI-146 has a three PLLs driving 3 programmable output clocks. The output clocks are derived from the PLL or the reference frequency (REF). Output post dividers are available for either. The CY223811 is the CY22381SI-146 with NiPdAu lead finish.

■ Three integrated phase-locked loops ■ Ultra-wide divide counters (eight-bit Q, eleven-bit P, and seven-bit post divide) ■ Improved linear crystal load capacitors ■ Flash programmability ■ Field programmability ■ Low-jitter, high-accuracy outputs ■ Power-management options (Shutdown, OE, Suspend) ■ Configurable crystal drive strength ■ Frequency select option through external LVTTL Input ■ 3.3 V operation ■ 8-pin small outline integrated circuit (SOIC) package (CY22381) ■ 8-pin SOIC package with NiPdAu lead finish (CY223811) ■ CyClocks RT™ support

Features