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Product Detailed Parameters
- Description：IC CLK BUFFER 1:4 140MHZ 8SOIC
- Series：-
- Package：Tube
- Mfr：Renesas Electronics Corporation
- Type：Fanout Buffer (Distribution)
- Number of Circuits：1
- Ratio - Input:Output：1:04
- Differential - Input:Output：No/No
- Input：LVCMOS
- Output：LVCMOS
- Frequency - Max：140 MHz
- Voltage - Supply：3V ~ 3.6V
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The Renesas 2304NZLDCGI is a high-performance, low skew, low jitter 1:4 LVCMOS clock buffer. It supports a synchronous glitch-free Output Enable function to eliminate incorrect output clock cycles during enable or disable transitions. The device operates on a 1.8V to 3.3V power supply and features an industrial temperature range from -40°C to +85°C. At 3.3V, the maximum propagation delay is 2.1ns, with a maximum output-to-output skew of 40ps. It is housed in an 8-pin SOIC package.
Feature Summary
- Low input to output propagation delay (1.8ns at 3.3V)
- Low output skew: 40ps max
- Glitch-free Output Enable Function
- 1.8V to 3.3V power supply
Applications
- PCI/PCI-X applications
- Networking applications
Procurement Notes
Verify the ordering suffix 'DCGI' corresponds to the 8-SOIC tube carrier type. Confirm RoHS compliance and Pb-Free configuration as indicated by the 'G' suffix in the part number. Ensure the industrial temperature range (-40°C to +85°C) matches the design requirements.
Selection Notes
Select this component for designs requiring low skew and jitter in 1:4 clock distribution. Ensure board layout maintains identical trace geometries and loads for all four outputs to achieve the specified 40ps skew. A 0.01µF decoupling capacitor should be placed close to VDD and GND pins.
Part Context
The 2304NZLDCGI belongs to the 2304NZL series of high-performance clock buffers. It is available in multiple packages including DFN, TSSOP, and SOIC. The 'DCGI' designation specifically identifies the 8-pin SOIC variant packaged in tubes.
Replacement Considerations
Other variants within the 2304NZL family include 2304NZLPGGI (TSSOP) and 2304NZLNTGI (DFN). These share the same electrical characteristics but differ in physical package dimensions and pin pitch.
FAQ
What is the maximum operating frequency?
The maximum input frequency is 200 MHz when operating at 2.5V or 3.3V.
How does the Output Enable function work?
The Output Enable (OE) pin controls the outputs synchronously. Outputs are enabled when OE is HIGH and forced to logic LOW when OE is LOW, eliminating intermediate incorrect clock cycles.
What external components are required?
A minimum of a 0.01µF decoupling capacitor between VDD and GND is required. Termination resistors should be used on each clock output if the trace length exceeds 1 inch.
