SN74HCU7204PWR Equivalent & Substitute Parts

Part Overview

The SN74HCU7204PWR is a 2-channel inverter logic IC manufactured by Texas Instruments in 8-TSSOP surface mount packaging. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The SN74HCU7204 series provides CMOS inverter functionality suitable for logic-level signal inversion applications across a 2V to 6V supply voltage range.

Key Parameters

Parameter	Value
Logic Type	Inverter
Number of Circuits	2
Number of Inputs	2
Voltage - Supply	2V ~ 6V
Current - Quiescent (Max)	2 µA
Current - Output High, Low	5.2mA, 5.2mA
Input Logic Level - Low	0.3V ~ 1.1V
Input Logic Level - High	1.7V ~ 4.8V
Max Propagation Delay @ V, Max CL	14ns @ 6V, 50pF
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	8-TSSOP (0.173", 4.40mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the SN74HCU7204PWR is determined by strict equivalence across the following critical parameters:

Logic Type: Inverter (2-channel, 2-input configuration)
Voltage Supply Range: 2V ~ 6V
Current Specifications: Quiescent 2 µA max; Output 5.2mA high and low
Input Logic Levels: Low 0.3V ~ 1.1V; High 1.7V ~ 4.8V
Propagation Delay: 14ns @ 6V, 50pF
Operating Temperature: -40°C ~ 85°C
Package: 8-TSSOP surface mount
Compliance: ROHS3, MSL 1

All identified substitute parts maintain identical electrical and mechanical specifications, ensuring direct functional replacement without circuit redesign.

Parameter Comparison

Parameter	SN74HCU7204PWR (Main)	SN74HCU7204PWT	SN74HCU7204PW
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments
Logic Type	Inverter	Inverter	Inverter
Number of Circuits	2	2	2
Number of Inputs	2	2	2
Voltage - Supply	2V ~ 6V	2V ~ 6V	2V ~ 6V
Current - Quiescent (Max)	2 µA	2 µA	2 µA
Current - Output High, Low	5.2mA, 5.2mA	5.2mA, 5.2mA	5.2mA, 5.2mA
Input Logic Level - Low	0.3V ~ 1.1V	0.3V ~ 1.1V	0.3V ~ 1.1V
Input Logic Level - High	1.7V ~ 4.8V	1.7V ~ 4.8V	1.7V ~ 4.8V
Max Propagation Delay @ V, Max CL	14ns @ 6V, 50pF	14ns @ 6V, 50pF	14ns @ 6V, 50pF
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	8-TSSOP (0.173", 4.40mm Width)	8-TSSOP (0.173", 4.40mm Width)	8-TSSOP (0.173", 4.40mm Width)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Discontinued at DiGi Electronics	Active

Engineering Selection Recommendations

SN74HCU7204PW is the primary substitute for the SN74HCU7204PWR. This part maintains active product status with Texas Instruments and is available in higher inventory (2168 pcs). It carries identical electrical specifications and ROHS3 compliance. The packaging format differs only in designation (Tray vs. unspecified for the main part), with no impact on functional compatibility.

SN74HCU7204PWT serves as a secondary equivalent. While electrically identical to the main part, its discontinued status at DiGi Electronics may affect long-term procurement availability. This part is suitable for applications where immediate substitution is required but future restocking may be constrained.

Both substitutes are fully compliant with ROHS3 and REACH requirements, maintaining the same MSL rating and operating specifications as the obsolete SN74HCU7204PWR.

Frequently Asked Questions (FAQ)

Q: Can SN74HCU7204PW directly replace SN74HCU7204PWR in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters. No circuit modifications are required for substitution.

Q: What is the difference between the three part numbers?

A: The SN74HCU7204 base part number identifies the device function and specifications. Suffix variations (PWR, PWT, PW) indicate packaging and distribution channel designations. All three maintain identical electrical performance and 8-TSSOP package dimensions.

Q: Is the 8-TSSOP package compatible with existing PCB layouts?

A: Yes. All three parts use the same 8-TSSOP (0.173", 4.40mm Width) surface mount package. PCB footprints and reflow profiles remain unchanged.

Q: Are there compliance or certification differences between these parts?

A: No. All three parts carry ROHS3 compliance, REACH unaffected status, and MSL 1 (Unlimited) rating. Compliance documentation is equivalent across all substitutes.

Q: Which substitute should be selected for new procurement?

A: SN74HCU7204PW is recommended due to active product status and higher inventory availability. This ensures long-term supply chain stability for ongoing production requirements.

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