CDCDB803RSLT Equivalent & Substitute Parts

Part Overview

The CDCDB803RSLT is an active clock buffer integrated circuit manufactured by Texas Instruments, classified as a Clock/Timing component. This device functions as a 1:8 clock buffer with a maximum frequency rating of 250 MHz, designed for applications requiring differential clock distribution. The part is currently in Active product status with 854 units in stock.

Substitute parts become necessary when the primary part number reaches end-of-life status, experiences supply constraints, or when alternative packaging formats better suit manufacturing requirements. The CDCDB803RSLT and its equivalents maintain identical electrical and mechanical specifications, enabling direct substitution within the same application circuit.

Key Parameters

Parameter	Value
Type	Clock Buffer
Number of Circuits	1
Ratio - Input:Output	1:8
Differential - Input:Output	Yes/Yes
Input Signal Type	Clock, HCSL
Output Signal Type	Clock, HCSL
Frequency - Max	250 MHz
Voltage - Supply	3V ~ 3.6V
Operating Temperature Range	-40°C ~ 105°C (TA)
Mounting Type	Surface Mount
Package / Case	48-VFQFN Exposed Pad
Supplier Device Package	48-VQFN (6x6)
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the CDCDB803RSLT is determined by strict parametric equivalence across the following critical specifications:

Electrical Parameters:

Clock buffer functionality with 1:8 input-to-output ratio
Differential input and output signal support (HCSL)
Maximum frequency of 250 MHz
Supply voltage range of 3V to 3.6V
Operating temperature range of -40°C to 105°C

Mechanical Parameters:

Surface mount technology
48-VFQFN package with exposed pad
6x6 mm supplier device package footprint

Packaging Format Variations: Substitute parts differ only in tape and reel configuration (Tape & Reel versus Cut Tape & Digi-Reel®), which does not affect electrical performance or circuit-level compatibility. All substitute parts maintain identical pinout, signal characteristics, and thermal properties.

Parameter Comparison

Part Number	Manufacturer	Type	Ratio	Frequency Max	Supply Voltage	Operating Temp	Package	Packaging Format	Product Status	Inventory (Pcs)
CDCDB803RSLT	Texas Instruments	Clock Buffer	1:8	250 MHz	3V ~ 3.6V	-40°C ~ 105°C	48-VFQFN	Tape & Reel (TR)	Active	854
CDCDB800RSLR	Texas Instruments	Clock Buffer	1:8	250 MHz	3V ~ 3.6V	-40°C ~ 105°C	48-VFQFN	Cut Tape (CT) & Digi-Reel®	Active	16200
CDCDB803ERSLR	Texas Instruments	Clock Buffer	1:8	250 MHz	3V ~ 3.6V	-40°C ~ 105°C	48-VFQFN	Tape & Reel (TR)	Active	5001
CDCDB803ERSLT	Texas Instruments	Clock Buffer	1:8	250 MHz	3V ~ 3.6V	-40°C ~ 105°C	48-VFQFN	Tape & Reel (TR)	Active	926
CDCDB803RSLR	Texas Instruments	Clock Buffer	1:8	250 MHz	3V ~ 3.6V	-40°C ~ 105°C	48-VFQFN	Cut Tape (CT) & Digi-Reel®	Active	3200

Engineering Selection Recommendations

All substitute parts listed maintain Active product status with Texas Instruments, ensuring continued manufacturer support and availability. Selection between CDCDB803RSLT and its equivalents should be based on the following criteria:

Packaging Format Compatibility: The CDCDB803RSLT is supplied in Tape & Reel (TR) format. Equivalent parts CDCDB800RSLR and CDCDB803RSLR are supplied in Cut Tape (CT) & Digi-Reel® format. Selection depends on manufacturing equipment compatibility and assembly line requirements.

Compliance Considerations: CDCDB803ERSLR and CDCDB803ERSLT carry ROHS3 Compliant certification and REACH Unaffected status. The primary part CDCDB803RSLT and alternatives CDCDB800RSLR and CDCDB803RSLR do not carry these designations. For applications requiring specific environmental compliance documentation, CDCDB803ERSLR or CDCDB803ERSLT are appropriate selections.

Inventory Availability: CDCDB800RSLR offers the highest inventory level at 16,200 units. CDCDB803RSLR provides 3,200 units. CDCDB803ERSLR and CDCDB803ERSLT offer 5,001 and 926 units respectively. Inventory levels should be evaluated against project lead time requirements.

Frequently Asked Questions (FAQ)

Q: Can CDCDB803RSLT be replaced with CDCDB800RSLR in production?

A: Yes. Both parts are parametrically equivalent clock buffers with identical electrical specifications, pinout, and package dimensions. The difference is packaging format: CDCDB803RSLT uses Tape & Reel while CDCDB800RSLR uses Cut Tape & Digi-Reel®. Substitution is valid if manufacturing equipment supports the alternative packaging format.

Q: What is the difference between CDCDB803RSLT and CDCDB803ERSLT?

A: Both parts are electrically and mechanically identical 1:8 clock buffers with 250 MHz maximum frequency. The primary difference is compliance certification: CDCDB803ERSLT carries ROHS3 Compliant and REACH Unaffected designations, while CDCDB803RSLT does not. Select CDCDB803ERSLT for applications requiring environmental compliance documentation.

Q: Are all substitute parts pin-compatible with CDCDB803RSLT?

A: Yes. All listed substitute parts use the 48-VFQFN package with identical pinout and signal assignments. Direct PCB-level substitution is supported without circuit modification.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel and Cut Tape & Digi-Reel® formats contain identical die and internal circuitry. Packaging format affects only handling, storage, and assembly line compatibility, not electrical characteristics or frequency response.

Q: Which substitute part should be selected for highest inventory availability?

A: CDCDB800RSLR provides the highest inventory at 16,200 units. This part is suitable for applications where Cut Tape & Digi-Reel® packaging is compatible with manufacturing processes.

Q: Can CDCDB803RSLT operate at frequencies below 250 MHz?

A: Yes. The 250 MHz specification is the maximum rated frequency. The device operates at all frequencies from DC to 250 MHz within the specified supply voltage and temperature ranges.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message