CDC203DWG4 Equivalent & Substitute Parts

Part Overview

The CDC203DWG4 is a 6-channel inverter logic IC manufactured by Texas Instruments in a 20-SOIC surface mount package. This part is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. The CDC203DWG4 provides basic logic inversion functionality with low quiescent current and fast propagation delay suitable for 3.3V logic systems.

Substiute Parts

CDC203DWG4

Texas InstrumentsIn Stock: 756CDC203DWG4 Datasheet

Current PartRFQ

CDC203DW

Texas InstrumentsIn Stock: 2199CDC203DW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The CDC203DW qualifies as a direct substitute for the CDC203DWG4 based on the following criteria:

Matching Electrical Parameters:

• Logic Type: Inverter (6 channels, 1 input per channel)
• Supply Voltage: 3V ~ 3.6V
• Quiescent Current: 4 µA maximum
• Output Current: 12mA high and low
• Input Logic Levels: 0.9V ~ 1.1V (low), 2.1V ~ 2.5V (high)
• Propagation Delay: 6.1ns @ 3.3V, 30pF

Matching Mechanical Parameters:

• Package Type: 20-SOIC surface mount
• Physical Dimensions: 0.295" × 7.50mm width

Compliance Alignment:

• RoHS3 Compliant
• MSL Rating: 1 (Unlimited)

The CDC203DW differs only in packaging format (tube versus the original's unspecified packaging) and product status (active versus discontinued), with no electrical or functional differences.

Parameter Comparison

Engineering Selection Recommendations

The CDC203DW is the appropriate substitute for the discontinued CDC203DWG4. Both parts are manufactured by Texas Instruments and maintain identical electrical specifications and package dimensions. The CDC203DW carries active product status, ensuring availability for procurement and support. Both parts meet ROHS3 compliance requirements and carry MSL-1 ratings, suitable for standard handling and storage conditions. Selection of the CDC203DW eliminates obsolescence risk while maintaining full functional and mechanical compatibility with existing designs.

Frequently Asked Questions (FAQ)

Q: Can CDC203DW be used as a direct replacement for CDC203DWG4? A: Yes. Both parts are identical in electrical performance, logic configuration, supply voltage, output current, propagation delay, and 20-SOIC package dimensions. The CDC203DW is the active equivalent.

Q: What is the difference between CDC203DWG4 and CDC203DW? A: The CDC203DWG4 is discontinued, while the CDC203DW is active. Packaging format differs (original unspecified versus tube), but electrical and mechanical specifications are identical.

Q: Are there any compatibility concerns when switching from CDC203DWG4 to CDC203DW? A: No compatibility concerns exist. Both parts operate within the same voltage range (3V ~ 3.6V), accept identical input logic levels, and produce identical output current and propagation delay characteristics. PCB footprints are identical.

Q: What is the 20-SOIC package specification? A: The 20-SOIC package is a surface mount dual-in-line package measuring 0.295 inches in width and 7.50mm overall. This package accommodates the six inverter circuits with standard lead spacing.

Q: Are both parts RoHS compliant? A: Yes. Both CDC203DWG4 and CDC203DW are ROHS3 compliant and carry MSL-1 moisture sensitivity ratings, meeting current environmental and handling standards.