SN74HC273PW-P Equivalent & Substitute Parts

Part Overview

The SN74HC273PW-P is a Logic category integrated circuit manufactured by Texas Instruments, classified as a Flip Flop D-Type device with 1 element and 8 bits per element. This component functions as a Master Reset flip flop with non-inverted output, designed for positive edge triggering applications. The device is currently in Active product status with 808 pieces available in new original stock.

The SN74HC273PW-P is packaged in 20-TSSOP surface mount configuration and operates across a supply voltage range of 2V to 6V. Identifying equivalent and substitute parts is necessary when the primary part number becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when supply chain optimization is needed while maintaining identical electrical and mechanical performance.

Substiute Parts

SN74HC273PW-P

Texas InstrumentsIn Stock: 827SN74HC273PW-P Datasheet

Current PartRFQ

SN74HC273PWT

Texas InstrumentsIn Stock: 1144SN74HC273PWT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SN74HC273PW-P are determined by strict equivalence across the following critical parameters:

Functional Parameters: Type (D-Type Flip Flop), Number of Elements (1), Number of Bits per Element (8), Trigger Type (Positive Edge), Output Type (Non-Inverted), and Function (Master Reset) must remain identical.

Electrical Parameters: Clock Frequency (60 MHz), Max Propagation Delay (27 ns @ 6V, 50pF), Voltage Supply Range (2V ~ 6V), Output Current (5.2 mA high and low), Quiescent Current (8 µA), and Input Capacitance (3 pF) must match exactly.

Physical Parameters: Package type (20-TSSOP with 0.173" width, 4.40mm) and Mounting Type (Surface Mount) must be identical to ensure PCB compatibility.

Compliance Parameters: RoHS3 Compliance and MSL Level 1 (Unlimited) must be maintained.

The primary distinction among substitute parts lies in the Supplier Device Package designation, which indicates the distribution format (tube, tape and reel, or bulk) rather than the physical component package itself. Parts with identical base product numbers (74HC273) and package designations (20-TSSOP) but different suffix codes represent the same die and electrical performance with variations only in packaging format and product status.

Parameter Comparison

Engineering Selection Recommendations

SN74HC273PW-P (Primary Part): This part maintains Active product status with 808 pieces in new original stock. It is ROHS3 compliant and carries MSL Level 1 (Unlimited) moisture sensitivity rating. Selection of this part number is appropriate for new designs and applications requiring long-term availability assurance.

SN74HC273PWT (Substitute Part): This part is electrically and functionally identical to the SN74HC273PW-P across all critical parameters. The primary difference is the Supplier Device Package designation (Tape & Reel format) and its Discontinued at DiGi Electronics product status. This part maintains ROHS3 compliance and MSL Level 1 rating. The SN74HC273PWT is suitable for applications where tape and reel packaging is compatible with manufacturing processes, provided that supply continuity is not a critical constraint. With 1065 pieces currently in stock, this part may serve as a temporary substitute when the primary part number experiences supply constraints.

Both parts share identical electrical performance, operating temperature range, and physical package dimensions. Selection between these parts should be based on packaging format requirements and product availability status within the supply chain.

Frequently Asked Questions (FAQ)

Q: Can the SN74HC273PWT be used as a direct replacement for the SN74HC273PW-P in production?

A: Yes, the SN74HC273PWT is electrically and functionally equivalent to the SN74HC273PW-P. Both parts contain identical die, operate at the same clock frequency (60 MHz), propagation delay (27 ns @ 6V, 50pF), and voltage supply range (2V ~ 6V). The only difference is the Supplier Device Package format (Tape & Reel versus standard packaging). Direct PCB compatibility is maintained as both use the 20-TSSOP package with identical pin configuration and spacing.

Q: What is the difference between the Supplier Device Package designations?

A: The Supplier Device Package designation indicates the distribution and delivery format of the component, not the physical package of the die itself. SN74HC273PW-P uses standard packaging, while SN74HC273PWT uses Tape & Reel (TR) format. Both contain the same 20-TSSOP physical package. Tape & Reel format is typically used for high-volume automated assembly processes, while standard packaging may be used for lower-volume or manual assembly applications.

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

A: No. Both the SN74HC273PW-P and SN74HC273PWT maintain identical compliance certifications: ROHS3 Compliant and Moisture Sensitivity Level 1 (Unlimited). Both parts meet the same environmental and regulatory standards.

Q: What should I consider when selecting between these substitute parts?

A: Selection should be based on three factors: (1) Manufacturing process compatibility with packaging format (tape and reel versus standard), (2) Current inventory availability and supply chain status, and (3) Long-term product availability requirements. The SN74HC273PW-P maintains Active status with established supply, while the SN74HC273PWT is Discontinued at DiGi Electronics but currently in stock. For new designs, the Active part is recommended; for existing designs requiring immediate substitution, either part is electrically suitable.

Q: Will substituting these parts require PCB redesign?

A: No. Both parts use the identical 20-TSSOP package with 0.173" width and 4.40mm dimensions. Pin configuration, spacing, and electrical characteristics are identical. No PCB layout modifications are required for substitution.

Q: Are the electrical performance characteristics identical between these parts?

A: Yes. Both parts operate at 60 MHz clock frequency, exhibit 27 ns maximum propagation delay at 6V with 50pF load, support 2V to 6V supply voltage range, deliver 5.2 mA output current (high and low), maintain 8 µA quiescent current, and feature 3 pF input capacitance. Operating temperature range is identical at -40°C to 85°C.