2305NZ-1HDCGI

Overview

The Renesas 2305NZ-1HDCGI is a high-speed clock buffer designed for non-zero delay applications. It accepts one reference input and drives five low-skew outputs, operating within a frequency range of 10 MHz to 133 MHz. The device utilizes an advanced sub-micron CMOS process with a supply voltage of 2.5 V (range 2.3 V to 2.7 V). Key electrical parameters include a maximum propagation delay of 8.7 ns and output skew less than 250 ps. It supports tri-state mode for board-level testing and features full CMOS outputs with 25 mA drive capability at TTL levels.

Feature Summary

• Non-zero delay architecture with 8.7 ns maximum propagation delay
• Five LVCMOS outputs with <250 ps skew and 25 mA drive capability
• Operates on 2.5 V supply (2.3 V to 2.7 V) up to 133 MHz
• Tri-state mode support for board-level testing

Applications

• SDRAM clock distribution
• Telecom systems
• Datacom equipment
• PC motherboards and workstations
• Critical path delay designs

Procurement Notes

Verify the specific suffix 'NZ' indicates the commercial temperature grade (0°C to +70°C) and 2.5V operation, distinct from the industrial grade '-1DCGI' variant. Confirm package availability in SOIC-8 tubes or cut tape as per distributor stock. Ensure compatibility with 2.5V logic levels rather than standard 3.3V systems.

Selection Notes

Select this component when a fixed propagation delay is acceptable or required for timing alignment, unlike zero-delay buffers. Verify that the system operates at 2.5V; for 3.3V applications, consider the 2305-1 series instead. Check if the commercial temperature range (0°C to +70°C) meets environmental requirements versus the industrial range (-40°C to +85°C).

Part Context

This part belongs to the IDT 2305 family of clock buffers, now manufactured by Renesas Electronics following the acquisition of Integrated Device Technology (IDT). The 2305NZ variant specifically targets 2.5V applications, distinguishing it from the 3.3V 2305-1 series. It serves as a high-performance solution for distributing reference clocks in high-speed digital systems.