NC7ST08P5 AND Gate IC Equivalent & Substitute Parts

Part Overview

The NC7ST08P5 is a single-channel 2-input AND gate logic IC manufactured by onsemi, housed in a 5-pin SC-70-5 (SOT-353) surface mount package. This part operates within a 4.5V to 5.5V supply voltage range and is designed for general-purpose logic applications requiring compact form factors.

The NC7ST08P5 is currently discontinued at DiGi Electronics. Equivalent and substitute parts are available from active product lines that maintain electrical compatibility while offering improved availability, extended temperature ranges, or enhanced performance characteristics.

Key Parameters

Parameter	NC7ST08P5
Logic Type	AND Gate
Number of Circuits	1
Number of Inputs	2
Voltage - Supply	4.5V ~ 5.5V
Current - Quiescent (Max)	1 µA
Current - Output High, Low	2mA, 2mA
Input Logic Level - Low	0.8V
Input Logic Level - High	2V
Max Propagation Delay @ V, Max CL	26ns @ 5.5V, 50pF
Operating Temperature	-40°C ~ 85°C
Package / Case	5-TSSOP, SC-70-5, SOT-353
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the NC7ST08P5 are classified based on the following critical parameters that determine functional compatibility:

Core Electrical Parameters (Must Match or Exceed):

Logic Type: AND Gate with 1 channel, 2 inputs
Supply Voltage Range: Minimum 4.5V ~ 5.5V compatibility
Input Logic Levels: Low ≤ 0.8V, High ≥ 2V
Package / Case: 5-TSSOP, SC-70-5, SOT-353 (pin-compatible packages)
RoHS3 Compliance and MSL Level 1

Performance Characteristics (May Vary):

Propagation Delay: Faster alternatives acceptable
Output Current: Higher drive capability acceptable
Operating Temperature: Extended ranges acceptable
Supply Voltage Range: Wider ranges acceptable

Substitutes are grouped into two categories:

Parametric Equivalent (Identical Electrical Specifications): NC7ST08P5X maintains identical electrical parameters with different packaging format (Tape & Reel vs. Cut Tape).
Similar Manufacturer Parts (Enhanced Performance): Parts from the 74AHCT1G08 and 74VHC1GT08 series provide faster propagation delays, higher output drive current, and extended temperature ranges while maintaining full electrical compatibility with the NC7ST08P5 supply voltage and logic level requirements.

Parameter Comparison

Parameter	NC7ST08P5	NC7ST08P5X	M74VHC1GT08DFT2G	74AHCT1G08GW,125	SN74AHCT1G08DBVR	SN74AHCT1G08DCKR	SN74AHCT1G08DCKT
Manufacturer	onsemi	onsemi	onsemi	Nexperia USA Inc.	Texas Instruments	Texas Instruments	Texas Instruments
Logic Type	AND Gate	AND Gate	AND Gate	AND Gate	AND Gate	AND Gate	AND Gate
Number of Circuits	1	1	1	1	1	1	1
Number of Inputs	2	2	2	2	2	2	2
Voltage - Supply	4.5V ~ 5.5V	4.5V ~ 5.5V	3V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V
Current - Quiescent (Max)	1 µA	1 µA	1 µA	1 µA	1 µA	1 µA	1 µA
Current - Output High, Low	2mA, 2mA	2mA, 2mA	8mA, 8mA	8mA, 8mA	8mA, 8mA	8mA, 8mA	8mA, 8mA
Input Logic Level - Low	0.8V	0.8V	0.53V ~ 0.8V	0.8V	0.8V	0.8V	0.8V
Input Logic Level - High	2V	2V	1.4V ~ 2V	2V	2V	2V	2V
Max Propagation Delay @ V, Max CL	26ns @ 5.5V, 50pF	26ns @ 5.5V, 50pF	7.9ns @ 5V, 50pF	7.9ns @ 5V, 50pF	7.9ns @ 5V, 50pF	7.9ns @ 5V, 50pF	7.9ns @ 5V, 50pF
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-55°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Package / Case	5-TSSOP, SC-70-5, SOT-353	5-TSSOP, SC-70-5, SOT-353	5-TSSOP, SC-70-5, SOT-353	5-TSSOP, SC-70-5, SOT-353	SC-74A, SOT-753	5-TSSOP, SC-70-5, SOT-353	5-TSSOP, SC-70-5, SOT-353
Product Status	Discontinued at DiGi Electronics	Active	Active	Active	Active	Active	Obsolete
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): Select NC7ST08P5X when the original NC7ST08P5 is unavailable. This part maintains identical electrical and thermal specifications with only packaging format differences (Tape & Reel vs. Cut Tape). Both parts are onsemi products with ROHS3 compliance and MSL Level 1 rating.

For Enhanced Performance Applications: The 74AHCT1G08 series (SN74AHCT1G08DCKR, SN74AHCT1G08DBVR, 74AHCT1G08GW,125) and M74VHC1GT08DFT2G provide superior performance characteristics while maintaining full electrical compatibility:

Faster propagation delay (7.9ns vs. 26ns)
Higher output drive current (8mA vs. 2mA)
Extended operating temperature range (-40°C to 125°C vs. -40°C to 85°C)
All parts maintain 4.5V ~ 5.5V supply voltage compatibility and identical logic level thresholds

Package Compatibility Considerations:

SN74AHCT1G08DBVR uses SOT-23-5 package (SC-74A, SOT-753), which differs from the NC7ST08P5 SC-70-5 package. PCB layout modification is required.
SN74AHCT1G08DCKR, SN74AHCT1G08DCKT, 74AHCT1G08GW,125, and M74VHC1GT08DFT2G maintain SC-70-5 / 5-TSSOP package compatibility for direct board-level substitution.

Availability and Product Status:

NC7ST08P5X: Active status with 10,279 units in stock
SN74AHCT1G08DCKR: Active status with 18,500 units in stock
74AHCT1G08GW,125: Active status with 13,023 units in stock
SN74AHCT1G08DBVR: Active status with 47,300 units in stock
M74VHC1GT08DFT2G: Active status with 95,300 units in stock
SN74AHCT1G08DCKT: Obsolete status; avoid for new designs

All recommended substitutes maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with standard manufacturing and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can I use SN74AHCT1G08DBVR as a direct replacement for NC7ST08P5?

A: Electrical compatibility is confirmed. However, SN74AHCT1G08DBVR uses SOT-23-5 package (SC-74A, SOT-753) while NC7ST08P5 uses SC-70-5 package. Pin assignments differ, requiring PCB layout modification. For direct board-level substitution without layout changes, use SN74AHCT1G08DCKR or 74AHCT1G08GW,125 instead.

Q: What are the key differences between NC7ST08P5 and the 74AHCT1G08 series?

A: Both maintain identical supply voltage (4.5V ~ 5.5V) and logic level thresholds (Low 0.8V, High 2V). The 74AHCT1G08 series offers faster propagation delay (7.9ns vs. 26ns), higher output drive current (8mA vs. 2mA), and extended temperature range (-40°C to 125°C vs. -40°C to 85°C). All are functionally compatible AND gates with 1 channel and 2 inputs.

Q: Is M74VHC1GT08DFT2G compatible with NC7ST08P5?

A: Yes. M74VHC1GT08DFT2G maintains the same logic function, package (SC-70-5), and supply voltage compatibility (3V ~ 5.5V range includes the 4.5V ~ 5.5V requirement). It provides faster propagation delay (7.9ns) and higher output current (8mA). Input logic levels are slightly wider (Low 0.53V ~ 0.8V, High 1.4V ~ 2V), ensuring full compatibility with NC7ST08P5 signal levels.

Q: Why is NC7ST08P5X recommended over other substitutes?

A: NC7ST08P5X is the parametric equivalent, maintaining identical electrical specifications, operating temperature range, and output drive characteristics. It differs only in packaging format (Tape & Reel). Select this part when performance specifications must remain unchanged from the original design. For new designs or when improved performance is acceptable, 74AHCT1G08 series parts offer superior speed and drive capability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (NC7ST08P5X, M74VHC1GT08DFT2G, 74AHCT1G08GW,125, SN74AHCT1G08DBVR, SN74AHCT1G08DCKR, SN74AHCT1G08DCKT) are ROHS3 compliant with MSL Level 1 rating, meeting standard environmental and manufacturing requirements.

Q: Can I use SN74AHCT1G08DCKT for new production?

A: SN74AHCT1G08DCKT is listed as Obsolete status. For new designs and production, select from active status parts: SN74AHCT1G08DCKR, 74AHCT1G08GW,125, SN74AHCT1G08DBVR, or M74VHC1GT08DFT2G. These ensure long-term supply chain availability and support.

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