ICS93786AF

Overview

The ICS93786AF is a DDR Phase Lock Loop Zero Delay Buffer manufactured by Renesas Electronics Corporation. It is designed for low skew and low jitter clock distribution in DDR memory systems. The device operates on a single 3.3V supply voltage and supports frequencies up to 400MHz, corresponding to DDR-II 800 performance. It features an industrial temperature range of 0°C to 70°C and is housed in a 28-lead SSOP package with a width of 5.30mm.

Feature Summary

• Low skew, low jitter PLL clock driver
• Max frequency supported = 400MHz (DDRII 800)
• I2C for functional and output control
• Feedback pins for input to output synchronization

Applications

• DDR I/DDR II memory systems
• Zero delay buffer applications
• Clock distribution networks requiring low skew

Procurement Notes

Verify the specific suffix 'AF' against official Renesas documentation to confirm exact temperature grade and packaging specifications. Ensure compatibility with existing PCB footprints for 28-SSOP packages. Confirm that the 3.3V supply requirement aligns with system power rails. Check for any end-of-life notices or obsolescence status prior to procurement.

Selection Notes

Select this component when designing DDR I or DDR II interfaces requiring precise clock synchronization. The zero-delay buffer feature minimizes propagation delay between input and output clocks. Consider the 400MHz maximum frequency limit for high-speed memory applications. Verify that the 28-SSOP package size fits within the mechanical constraints of the design.

Part Context

This component belongs to the family of DDR I/DDR II Phase Lock Loop Zero Delay Buffers. It is engineered to provide robust clock signals for synchronous dynamic random-access memory (SDRAM) applications. The device integrates PLL technology to generate stable clock outputs with minimal skew relative to the input reference.

Replacement Considerations

Check for direct pin-to-pin replacements within the same Renesas timing product line. Evaluate alternative zero-delay buffers from other manufacturers if availability is constrained. Ensure replacement parts support the required 400MHz frequency and 3.3V operating voltage.