TSI578-CLVY

Overview

The TSI578-CLVY is a Serial RapidIO switch manufactured by Renesas Electronics Corporation, originally developed by Integrated Device Technology. It features a 675-ball Flip-Chip Ball Grid Array (FCBGA) package with a 27 mm x 27 mm body size and 1.00 mm pitch. The device supports multiple Serial RapidIO ports operating at data rates of 1.25 Gbit/s, 2.5 Gbit/s, and 3.125 Gbit/s. Key electrical characteristics include a 1.2V core supply (VDD), a 3.3V I/O supply (VDD_IO), and specific analog supplies for port biasing and reference clocks. The component has a Moisture Sensitivity Level of 3.

Feature Summary

• Supports Serial RapidIO link rates of 1.25 Gbps, 2.5 Gbps, and 3.125 Gbps via hardware pins or software configuration.
• Features a 675-ball FCBGA package with JEDEC 95-1 Section 14 compliance.
• Includes dedicated power domains: 1.2V for digital logic and SERDES, and 3.3V for LVTTL I/O.

Applications

• System interconnect applications requiring high-speed Serial RapidIO switching.

Procurement Notes

Verify the manufacturer origin, as the component was originally produced by Integrated Device Technology before its acquisition by Renesas Electronics. Confirm the specific suffix 'CLVY' against official ordering information to ensure correct speed grade and package variant. Check for product discontinuance notices, as older IDT/Renesas switches may have reached end-of-life status.

Selection Notes

Ensure the design accommodates the 675-ball FCBGA footprint with a 1.00 mm pitch. Verify that the board layout supports the required decoupling for VDD, VDD_IO, SP_AVDD, and REF_AVDD rails. Confirm that the system clocking architecture can provide the necessary P_CLK (nominal 100 MHz) and S_CLK (max 156.25 MHz) signals.

Part Context

This part belongs to the Tsi578 family of Serial RapidIO switches. The 'CLVY' suffix typically denotes specific performance grades or packaging options within the IDT/Renesas portfolio. The hardware manual provides detailed signal descriptions, pin assignments, and layout guidelines essential for integrating this switch into complex embedded systems.

Replacement Considerations

Consult the Tsi578 Hardware Manual ordering section for confirmed substitute part numbers such as TSI578-GCLH, TSI578-GCLV, TSI578-GILH, or TSI578-GILV. Verify compatibility of pinouts and electrical specifications before substitution.

FAQ

What are the supported Serial RapidIO data rates?

The TSI578 supports data rates of 1.25 Gbit/s, 2.5 Gbit/s, and 3.125 Gbit/s, which can be selected via the SP_IO_SPEED pins or software registers.

How is the I2C slave address configured?

The lower 2 bits of the 7-bit I2C slave address are determined by the states of the I2C_SA pins. These values can also be overridden by software after reset.

What is the recommended termination for unused serial ports?

Signals for unused serial ports do not require termination and can be left as No Connects (N/C).