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Product Detailed Parameters
- Description：IC CLK BUFFER 1:8 80MHZ 20SOIC
- Series：-
- Package：Tape & Reel (TR)
- Mfr：Texas Instruments
- Type：Fanout Buffer (Distribution)
- Number of Circuits：1
- Ratio - Input:Output：1:08
- Differential - Input:Output：No/No
- Input：TTL
- Output：TTL
- Frequency - Max：80 MHz
- Voltage - Supply：4.75V ~ 5.25V
- Operating Temperature：0°C ~ 70°C
- Mounting Type：Surface Mount
- Package / Case：20-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：20-SOIC
- Grade：-
- Qualification：-
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Overview
The CDC340DWRG4 is a single-channel fanout buffer manufactured by Texas Instruments, designed for clock distribution applications. It features a 1:8 input-to-output ratio and supports TTL input and output logic levels. The device operates within a supply voltage range of 4.75V to 5.25V and delivers a maximum frequency of 80 MHz. Packaged in a 20-SOIC surface-mount case with a width of 7.50mm, it is supplied in tape and reel format. The component is rated for an operating temperature range of 0°C to 70°C.
Feature Summary
- Single circuit configuration with 1:8 fanout ratio
- Supports 80 MHz maximum operating frequency
- TTL input and output logic compatibility
- Operates on 4.75V to 5.25V supply voltage
Applications
- Clock signal distribution in digital systems
- Buffering timing signals for peripheral devices
- Fanout expansion for microcontroller clocks
Procurement Notes
Verify the specific package variant (Tape & Reel) and temperature grade (Commercial, 0°C to 70°C) against system requirements. Confirm that the TTL input/output specifications align with the target interface voltages. Ensure the 20-SOIC footprint matches the PCB layout constraints before procurement.
Selection Notes
Select this component when a single-ended TTL clock source requires driving up to eight downstream loads. Ensure the design environment stays within the 0°C to 70°C commercial temperature range. Verify that the 4.75V to 5.25V power rail is stable to maintain the specified 80 MHz performance without degradation.
Part Context
This part belongs to the Texas Instruments clock buffer and driver category. It serves as a distribution element for timing signals, converting a single input into multiple buffered outputs. The 20-SOIC package allows for surface-mount assembly, suitable for standard PCB manufacturing processes.
Replacement Considerations
Check for parameter-equivalent alternatives such as the CDC340DW if the Tape & Reel packaging is not required. Verify pin compatibility and electrical specifications before substituting.
