SN74LVC74APW-P Equivalent & Substitute Parts

Part Overview

The SN74LVC74APW-P is a dual D-type flip-flop logic integrated circuit manufactured by Texas Instruments in the 74LVC series. This component functions as a Set(Preset) and Reset element with complementary outputs, designed for positive edge-triggered applications. The device is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across packaging and delivery formats while preserving core functional specifications.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Series	74LVC
Type	D-Type Flip-Flop
Number of Elements	2
Number of Bits per Element	1
Output Type	Complementary
Clock Frequency	150 MHz
Voltage Supply Range	1.65V ~ 3.6V
Operating Temperature	-40°C ~ 125°C (TA)
Package Type	14-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the SN74LVC74APW-P are identified based on strict equivalence of the following critical parameters:

Electrical Equivalence Criteria:

Identical base product number (74LVC74)
Matching clock frequency (150 MHz)
Identical voltage supply range (1.65V ~ 3.6V)
Matching output current specifications (24mA high and low)
Identical quiescent current (10 µA)
Same input capacitance (5 pF)
Identical operating temperature range (-40°C ~ 125°C)
Matching trigger type (Positive Edge)
Identical function (Set/Preset and Reset)
Complementary output type

Mechanical Equivalence Criteria:

Identical package type (14-TSSOP with 0.173", 4.40mm width)
Surface mount mounting type
Same supplier device package designation

Compliance Equivalence Criteria:

ROHS3 compliance maintained
Moisture Sensitivity Level 1 (Unlimited)
Active product status

Substitutes differ only in packaging format (Tube or Tape & Reel) and minor propagation delay variations within acceptable engineering tolerances.

Parameter Comparison

Parameter	SN74LVC74APW-P	SN74LVC74APWT	SN74LVC74APW
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments
Series	74LVC	74LVC	74LVC
Type	D-Type	D-Type	D-Type
Number of Elements	2	2	2
Number of Bits per Element	1	1	1
Output Type	Complementary	Complementary	Complementary
Clock Frequency	150 MHz	150 MHz	150 MHz
Max Propagation Delay @ 3.3V, 50pF	5.4ns	5.2ns	5.2ns
Current - Output High	24mA	24mA	24mA
Current - Output Low	24mA	24mA	24mA
Voltage - Supply	1.65V ~ 3.6V	1.65V ~ 3.6V	1.65V ~ 3.6V
Current - Quiescent (Iq)	10 µA	10 µA	10 µA
Input Capacitance	5 pF	5 pF	5 pF
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Trigger Type	Positive Edge	Positive Edge	Positive Edge
Package / Case	14-TSSOP (0.173", 4.40mm Width)	14-TSSOP (0.173", 4.40mm Width)	14-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active
Packaging Format	Tube	Tape & Reel (TR)	Tube

Engineering Selection Recommendations

All three parts—SN74LVC74APW-P, SN74LVC74APWT, and SN74LVC74APW—maintain Active product status from Texas Instruments and are ROHS3 compliant. Selection between these parts is determined by packaging and delivery requirements rather than electrical performance.

SN74LVC74APW-P (Tube Packaging): Use for applications requiring tube delivery format with standard handling and storage procedures.

SN74LVC74APWT (Tape & Reel Packaging): Use for high-volume automated assembly operations where tape and reel format enables continuous pick-and-place machine feeding.

SN74LVC74APW (Tube Packaging): Use as an alternative tube-packaged option with identical electrical specifications to SN74LVC74APW-P.

All three parts satisfy identical electrical requirements, mechanical compatibility, and regulatory compliance standards. Propagation delay variations (5.4ns for SN74LVC74APW-P versus 5.2ns for SN74LVC74APWT and SN74LVC74APW) remain within acceptable engineering tolerances for 150 MHz clock frequency applications.

Frequently Asked Questions (FAQ)

Q: Can SN74LVC74APWT replace SN74LVC74APW-P in a circuit design?

A: Yes. Both parts are electrically equivalent with identical functional specifications, voltage supply range, clock frequency, output current, and operating temperature range. The difference is packaging format: SN74LVC74APWT uses Tape & Reel delivery while SN74LVC74APW-P uses Tube delivery. Circuit performance is identical.

Q: What is the difference between Tube and Tape & Reel packaging?

A: Tube packaging is used for manual handling and lower-volume applications. Tape & Reel packaging is designed for automated assembly lines with continuous feeding into pick-and-place machines. Both formats contain the same component with identical electrical characteristics.

Q: Are all three parts ROHS3 compliant?

A: Yes. SN74LVC74APW-P, SN74LVC74APWT, and SN74LVC74APW are all ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited).

Q: Why do SN74LVC74APWT and SN74LVC74APW show faster propagation delay (5.2ns) compared to SN74LVC74APW-P (5.4ns)?

A: Both values are within the specified maximum propagation delay at 3.3V with 50pF load. These variations represent normal manufacturing tolerance ranges and do not affect functional equivalence for 150 MHz clock frequency applications.

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes, for circuit design purposes. However, assembly process selection depends on packaging format: Tube format requires manual or semi-automated handling, while Tape & Reel format integrates directly into automated pick-and-place assembly workflows.

Q: What is the Moisture Sensitivity Level (MSL) for these parts?

A: All three parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

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