SN74HC00PWT NAND Gate IC Equivalent & Substitute Parts

Part Overview

The SN74HC00PWT is a 4-channel 2-input NAND gate logic IC manufactured by Texas Instruments in a 14-TSSOP surface mount package. This part is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. The SN74HC00PWT operates across a 2V to 6V supply voltage range with low quiescent current and standard propagation delay characteristics suitable for general-purpose digital logic applications.

Key Parameters

Parameter	Value
Logic Type	NAND Gate
Number of Circuits	4
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	0.5V ~ 1.8V
Input Logic Level - High	1.5V ~ 4.2V
Max Propagation Delay @ 6V, 50pF	15ns
Operating Temperature	-40°C ~ 85°C
Package / Case	14-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the SN74HC00PWT is determined by strict equivalence across the following critical parameters:

Logic function: 4-channel 2-input NAND gate
Package type: 14-TSSOP surface mount
Supply voltage range: 2V ~ 6V minimum
Output current capability: 5.2mA minimum for both high and low states
Input logic thresholds: 0.5V ~ 1.8V (low), 1.5V ~ 4.2V (high)
Propagation delay: 15ns maximum at 6V, 50pF load
Operating temperature: -40°C minimum to 85°C minimum
RoHS3 compliance and MSL Level 1 rating

Substitute parts are grouped by manufacturer and packaging configuration. All listed substitutes maintain identical logic function, package footprint, and core electrical specifications. Variations in quiescent current, maximum propagation delay, and operating temperature range are noted where they exceed the original specification, indicating enhanced or equivalent performance.

Parameter Comparison

Parameter	SN74HC00PWT (TI)	SN74HC00PWR (TI)	MC74HC00ADTR2G (onsemi)	74HC00T14-13 (Diodes)	MM74HC00MTCX (Fairchild)
Manufacturer	Texas Instruments	Texas Instruments	onsemi	Diodes Incorporated	Fairchild Semiconductor
Product Status	Discontinued	Active	Active	Active	Active
Packaging	Cut Tape (CT)	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)	Tape & Reel (TR)	Not specified
Voltage - Supply	2V ~ 6V	2V ~ 6V	2V ~ 6V	2V ~ 6V	2V ~ 6V
Current - Quiescent (Max)	2 µA	2 µA	1 µA	20 µA	2 µA
Current - Output High, Low	5.2mA, 5.2mA	5.2mA, 5.2mA	5.2mA, 5.2mA	5.2mA, 5.2mA	5.2mA, 5.2mA
Input Logic Level - Low	0.5V ~ 1.8V	0.5V ~ 1.8V	0.5V ~ 1.8V	0.5V ~ 1.8V	0.5V ~ 1.8V
Input Logic Level - High	1.5V ~ 4.2V	1.5V ~ 4.2V	1.5V ~ 4.2V	1.5V ~ 4.2V	1.5V ~ 4.2V
Max Propagation Delay @ 6V, 50pF	15ns	15ns	13ns	15ns	15ns
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-55°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 85°C
Package / Case	14-TSSOP (0.173", 4.40mm Width)	14-TSSOP (0.173", 4.40mm Width)	14-TSSOP (0.173", 4.40mm Width)	14-TSSOP (0.173", 4.40mm Width)	14-TSSOP (0.173", 4.40mm Width)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	Not specified
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	Not specified

Engineering Selection Recommendations

SN74HC00PWR (Texas Instruments) — Recommended primary substitute. Active product status with identical electrical specifications to the discontinued SN74HC00PWT. Maintains the same supply voltage range, quiescent current, output drive capability, and propagation delay. Available in both Cut Tape and Digi-Reel packaging options. ROHS3 compliant with MSL Level 1 rating.

MC74HC00ADTR2G (onsemi) — Direct manufacturer alternative with enhanced performance characteristics. Quiescent current reduced to 1 µA and propagation delay improved to 13ns at 6V, 50pF. Extended operating temperature range of -55°C to 125°C provides margin beyond the original specification. Supplied in Tape & Reel packaging. ROHS3 compliant with MSL Level 1 rating.

74HC00T14-13 (Diodes Incorporated) — MFR-recommended substitute with active product status. Maintains core electrical specifications with extended upper operating temperature limit of 125°C. Quiescent current specification of 20 µA is higher than the original part but remains within acceptable limits for general-purpose logic applications. Supplied in Tape & Reel packaging. ROHS3 compliant with MSL Level 1 rating.

MM74HC00MTCX (Fairchild Semiconductor) — Parametric equivalent with active product status. Electrical specifications match the original SN74HC00PWT across all critical parameters. Operating temperature range identical to the original part at -40°C to 85°C. Packaging configuration not specified in available documentation.

Frequently Asked Questions (FAQ)

Q: Can I directly replace SN74HC00PWT with SN74HC00PWR in my circuit?

A: Yes. Both parts are Texas Instruments 74HC00 NAND gate ICs in 14-TSSOP packages with identical electrical specifications. The SN74HC00PWR is the active production equivalent of the discontinued SN74HC00PWT.

Q: What is the difference between the onsemi MC74HC00ADTR2G and the original SN74HC00PWT?

A: The MC74HC00ADTR2G offers improved performance with lower quiescent current (1 µA vs. 2 µA) and faster propagation delay (13ns vs. 15ns). It also supports an extended operating temperature range of -55°C to 125°C compared to -40°C to 85°C. All other electrical parameters remain equivalent.

Q: Are all substitute parts in the same package?

A: Yes. All listed substitutes use the 14-TSSOP surface mount package with identical footprint dimensions of 0.173" width and 4.40mm overall width. PCB layout and reflow soldering parameters remain unchanged.

Q: Does the higher quiescent current of the 74HC00T14-13 affect circuit performance?

A: The 74HC00T14-13 specifies a maximum quiescent current of 20 µA compared to 2 µA for the original part. This represents a worst-case specification and does not affect logic function or output drive capability. For battery-powered or ultra-low-power applications, the lower quiescent current alternatives (SN74HC00PWR, MC74HC00ADTR2G, or MM74HC00MTCX) are preferred.

Q: Are all substitutes RoHS3 compliant?

A: SN74HC00PWR, MC74HC00ADTR2G, and 74HC00T14-13 are confirmed ROHS3 compliant with MSL Level 1 ratings. Fairchild MM74HC00MTCX compliance status is not specified in available documentation.

Q: What packaging options are available for production quantities?

A: SN74HC00PWR is available in both Cut Tape and Digi-Reel packaging. MC74HC00ADTR2G and 74HC00T14-13 are supplied in Tape & Reel format for automated assembly. Packaging selection depends on production volume and assembly equipment compatibility.

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