SN74HC04DT Equivalent & Substitute Parts

Part Overview

The SN74HC04DT is a 6-channel inverter logic IC manufactured by Texas Instruments in 14-SOIC surface mount packaging. This part is discontinued at DiGi Electronics but remains available through inventory stock of 4807 pieces. The SN74HC04DT operates across a 2V to 6V supply voltage range with a maximum propagation delay of 16ns at 6V with 50pF load. Given the discontinued status, identifying functionally equivalent alternatives is essential for design continuity and procurement planning.

Key Parameters

Parameter	Value
Logic Type	Inverter
Number of Circuits	6
Number of Inputs	1
Voltage Supply Range	2V ~ 6V
Current - Quiescent (Max)	2 µA
Current - Output High/Low	5.2mA / 5.2mA
Input Logic Level - Low	0.5V ~ 1.8V
Input Logic Level - High	1.5V ~ 4.2V
Max Propagation Delay @ 6V, 50pF	16ns
Operating Temperature	-40°C ~ 85°C
Package / Case	14-SOIC (0.154", 3.90mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the SN74HC04DT is determined by the following criteria:

Primary Substitution Parameters:

Logic Type: Inverter (6 channels, 1 input per channel)
Package Type: 14-SOIC or compatible 14-pin surface mount packages
Voltage Supply Range: 2V ~ 6V minimum
Output Current Capability: 5.2mA minimum for both high and low states
Input Logic Levels: Compatible with 0.5V ~ 1.8V (low) and 1.5V ~ 4.2V (high)
Propagation Delay: 16ns or faster at 6V with 50pF load
Operating Temperature: Minimum -40°C ~ 85°C
Compliance: ROHS3 Compliant, MSL 1

Substitute parts are grouped into three categories:

Parametric Equivalents (Texas Instruments): Parts with identical electrical specifications and packaging, differing only in distribution format (tape & reel vs. cut tape).

Direct Equivalents (Multi-Manufacturer): Parts from onsemi, Nexperia, Diodes, and Toshiba that meet or exceed all electrical parameters while maintaining 14-pin SOIC package compatibility.

Enhanced Performance Variants: Parts with improved specifications (lower propagation delay, extended temperature range, lower quiescent current) that maintain full backward compatibility.

Parameter Comparison

Part Number	Manufacturer	Packaging	Quiescent Current (Max)	Propagation Delay @ 6V, 50pF	Operating Temp Range	Product Status	Inventory
SN74HC04DT	Texas Instruments	Tape & Reel (TR)	2 µA	16ns	-40°C ~ 85°C	Discontinued	4807 Pcs
SN74HC04DR	Texas Instruments	Cut Tape (CT) & Digi-Reel	2 µA	16ns	-40°C ~ 85°C	Active	25400 Pcs
SN74HC04DRG3	Texas Instruments	Tape & Reel (TR)	2 µA	16ns	-40°C ~ 85°C	Active	2100 Pcs
MC74HC04ADR2G	onsemi	Cut Tape (CT) & Digi-Reel	1 µA	13ns	-55°C ~ 125°C	Active	130100 Pcs
MM74HC04M	onsemi	Tube	2 µA	16ns	-40°C ~ 85°C	Active	1133 Pcs
74HC04D,653	Nexperia USA Inc.	Tape & Reel (TR)	2 µA	14ns	-40°C ~ 125°C	Active	2000 Pcs
74HC04S14-13	Diodes Incorporated	Tape & Reel (TR)	20 µA	15ns	-40°C ~ 125°C	Active	1205 Pcs
74HCU04S14-13	Diodes Incorporated	Tape & Reel (TR)	20 µA	12ns	-40°C ~ 125°C	Active	5300 Pcs
MC74HC04ADG	onsemi	Tube	1 µA	13ns	-55°C ~ 125°C	Active	2100 Pcs
NLV74HC04ADR2G	onsemi	Cut Tape (CT) & Digi-Reel	1 µA	13ns	-55°C ~ 125°C	Obsolete	3280 Pcs
TC74HC04AF(EL,F)	Toshiba Semiconductor and Storage	Tape & Reel (TR)	1 µA	13ns	-40°C ~ 85°C	Active	941 Pcs

Engineering Selection Recommendations

Tier 1 - Direct Replacement (Identical Specifications): SN74HC04DR and SN74HC04DRG3 are the primary alternatives, both from Texas Instruments with identical electrical performance to the SN74HC04DT. SN74HC04DR offers significantly higher inventory (25400 pieces) in cut tape format. SN74HC04DRG3 maintains the original tape & reel packaging with 2100 pieces available. Both are active products with full ROHS3 compliance.

Tier 2 - Enhanced Performance Equivalents: MC74HC04ADR2G and MC74HC04ADG from onsemi provide superior specifications with 1 µA quiescent current (vs. 2 µA), 13ns propagation delay (vs. 16ns), and extended operating temperature range (-55°C ~ 125°C vs. -40°C ~ 85°C). MC74HC04ADR2G has exceptional inventory availability (130100 pieces). Both maintain 14-SOIC package compatibility and ROHS3 compliance.

Tier 3 - Alternative Manufacturers: 74HC04D,653 from Nexperia and TC74HC04AF(EL,F) from Toshiba meet or exceed all electrical parameters. Nexperia's part offers 14ns propagation delay and -40°C ~ 125°C operating range. Toshiba's part matches the original temperature range with 13ns propagation delay. Both are active products with full compliance.

Tier 4 - Extended Temperature Range Options: 74HC04S14-13 and 74HCU04S14-13 from Diodes Incorporated support -40°C ~ 125°C operating range. The 74HCU04S14-13 variant offers the fastest propagation delay (12ns) among all alternatives. Note that quiescent current is elevated at 20 µA for both Diodes parts.

Obsolete Parts to Avoid: NLV74HC04ADR2G from onsemi is marked obsolete and should not be selected for new designs despite adequate inventory.

Frequently Asked Questions (FAQ)

Q: Can I use SN74HC04DR as a direct replacement for SN74HC04DT? A: Yes. SN74HC04DR is electrically identical to SN74HC04DT with matching voltage supply range (2V ~ 6V), quiescent current (2 µA), propagation delay (16ns @ 6V, 50pF), and operating temperature (-40°C ~ 85°C). The only difference is packaging format: SN74HC04DR uses cut tape & Digi-Reel distribution while SN74HC04DT uses tape & reel. Both are 14-SOIC packages with identical pinouts and electrical behavior.

Q: What are the advantages of using MC74HC04ADR2G instead of the original SN74HC04DT? A: MC74HC04ADR2G offers three performance improvements: lower quiescent current (1 µA vs. 2 µA), faster propagation delay (13ns vs. 16ns @ 6V, 50pF), and extended operating temperature range (-55°C ~ 125°C vs. -40°C ~ 85°C). It maintains full electrical compatibility with identical voltage supply range, output current capability, and input logic levels. Inventory availability is also significantly higher at 130100 pieces.

Q: Are there package compatibility concerns when substituting these parts? A: Most substitutes use 14-SOIC or 14-SO packages with 0.154" width (3.90mm), which are mechanically and electrically compatible. TC74HC04AF(EL,F) from Toshiba uses a 14-SOP package with 0.209" width (5.30mm), which is physically larger but maintains identical pinout and electrical specifications. Verify PCB footprint compatibility before selecting this variant. All other substitutes use standard 14-SOIC packages.

Q: Can I use 74HCU04S14-13 as a substitute? A: 74HCU04S14-13 is functionally compatible with identical logic type (6-channel inverter), voltage supply range (2V ~ 6V), and output current capability (5.2mA). However, it has different input logic thresholds (0.3V ~ 1.2V low, 1.7V ~ 4.8V high vs. 0.5V ~ 1.8V low, 1.5V ~ 4.2V high) and elevated quiescent current (20 µA vs. 2 µA). Use this part only if your circuit design accommodates these parameter differences.

Q: Why is NLV74HC04ADR2G listed if it is obsolete? A: NLV74HC04ADR2G is included for reference as it was originally listed in the SN74HC04DT substitute list. However, it is marked obsolete and should not be selected for new designs. Active alternatives with superior or equivalent specifications are available from multiple manufacturers.

Q: What is the difference between tape & reel and cut tape packaging? A: Both are surface mount distribution formats for automated assembly. Tape & reel packaging supplies components on continuous tape wound on reels, suitable for high-volume production. Cut tape & Digi-Reel supplies components on tape segments, suitable for lower-volume or mixed-component orders. Electrical performance and component specifications are identical; the choice depends on assembly equipment and order volume requirements.

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