SN74V273-6PZA Equivalent & Substitute Parts

Part Overview

The SN74V273-6PZA is a synchronous FIFO logic component manufactured by Texas Instruments, featuring 288K memory capacity (32K x 9 configuration) with 4.5ns access time and 166MHz data rate. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The component operates within a 3.15V to 3.45V supply range and is housed in an 80-LQFP surface mount package.

Substiute Parts

SN74V273-6PZA

Texas InstrumentsIn Stock: 2351SN74V273-6PZA Datasheet

Current PartRFQ

72V273L6PFG

Renesas Electronics CorporationIn Stock: 114472V273L6PFG Datasheet

UpgradeRFQ

72V273L10PFG

Renesas Electronics CorporationIn Stock: 242372V273L10PFG Datasheet

MFR RecommendedRFQ

SN74V293-6PZA

Texas InstrumentsIn Stock: 1191SN74V293-6PZA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN74V273-6PZA is determined by the following critical parameters: memory size configuration, synchronous FIFO function, uni-directional bus architecture, supply voltage range, operating temperature range, and surface mount package type. All substitute parts must maintain compatibility across these core electrical and mechanical specifications.

The substitute parts are grouped into two categories:

Direct Equivalent (72V273L6PFG): Maintains identical memory size (288K), data rate (166MHz), voltage supply, bus directional type, and operating temperature range. Differs in access time (4ns versus 4.5ns) and manufacturer (Renesas Electronics Corporation). Package type is 80-TQFP, which is mechanically compatible with 80-LQFP footprints.

Functional Equivalent with Reduced Performance (72V273L10PFG): Maintains identical memory size (288K), voltage supply, bus directional type, and operating temperature range. Operates at reduced data rate (100MHz versus 166MHz) and longer access time (6.5ns versus 4.5ns). Manufacturer is Renesas Electronics Corporation with 80-TQFP package.

Higher Capacity Equivalent (SN74V293-6PZA): Maintains identical manufacturer (Texas Instruments), data rate (166MHz), access time (4.5ns), voltage supply, bus directional type, and operating temperature range. Provides increased memory capacity (1.125M versus 288K) in 80-LQFP package.

Parameter Comparison

Engineering Selection Recommendations

72V273L6PFG Selection: This Renesas Electronics substitute provides improved performance with 4ns access time (faster than the original 4.5ns) while maintaining identical memory capacity and data rate. The part is active in production status, ensuring long-term availability. The 80-TQFP package is mechanically compatible with 80-LQFP footprints. MSL rating of 3 provides superior moisture protection compared to the original MSL 4 rating. ROHS3 compliance and EAR99 export classification are maintained.

72V273L10PFG Selection: This Renesas Electronics option is suitable for applications where reduced performance specifications are acceptable. Operating at 100MHz data rate and 6.5ns access time, this part maintains identical memory capacity and voltage specifications. Active production status ensures availability. MSL rating of 3 provides improved moisture handling. Select this substitute only when system timing requirements permit the reduced performance parameters.

SN74V293-6PZA Selection: This Texas Instruments substitute maintains identical performance characteristics (166MHz, 4.5ns) and package type (80-LQFP) as the original part. The primary distinction is increased memory capacity (1.125M versus 288K), which provides additional depth for FIFO buffering. Active production status ensures long-term procurement viability. This option is suitable for designs requiring higher memory capacity within the same performance envelope.

Frequently Asked Questions (FAQ)

Q: Can 72V273L6PFG be used as a direct replacement for SN74V273-6PZA?

A: Yes, 72V273L6PFG is functionally compatible. Both parts maintain identical memory size (288K), data rate (166MHz), voltage supply (3.15V ~ 3.45V), and operating temperature range (0°C ~ 70°C). The 80-TQFP package is mechanically compatible with 80-LQFP footprints. The 4ns access time of 72V273L6PFG is faster than the original 4.5ns specification, providing improved performance margin.

Q: What is the difference between 72V273L6PFG and 72V273L10PFG?

A: Both parts are Renesas Electronics synchronous FIFOs with identical 288K memory capacity. The primary differences are data rate (166MHz versus 100MHz) and access time (4ns versus 6.5ns). Select 72V273L6PFG for applications requiring full 166MHz performance. Select 72V273L10PFG only when system timing permits reduced performance specifications.

Q: Why would SN74V293-6PZA be selected over other substitutes?

A: SN74V293-6PZA provides increased memory capacity (1.125M versus 288K) while maintaining identical performance characteristics (166MHz, 4.5ns) and package type (80-LQFP) as the original SN74V273-6PZA. This option is suitable for designs requiring deeper FIFO buffering without performance compromise.

Q: Are all substitute parts ROHS3 compliant?

A: Yes, all substitute parts listed (72V273L6PFG, 72V273L10PFG, and SN74V293-6PZA) are ROHS3 compliant, matching the compliance status of the original SN74V273-6PZA.

Q: What is the MSL rating difference between the original part and substitutes?

A: The original SN74V273-6PZA has MSL rating 4 (72 hours). Both Renesas substitutes (72V273L6PFG and 72V273L10PFG) have MSL rating 3 (168 hours), providing superior moisture protection. SN74V293-6PZA maintains MSL rating 4 (72 hours) consistent with the original part.

Q: Are there package compatibility considerations?

A: The original SN74V273-6PZA uses 80-LQFP package. Renesas substitutes (72V273L6PFG and 72V273L10PFG) use 80-TQFP package. Both package types are mechanically compatible with identical 14x14mm footprints and pin counts. SN74V293-6PZA maintains the original 80-LQFP package type.