74VCX16722MTDX Equivalent & Substitute Parts

Part Overview

The 74VCX16722MTDX is a D-Type flip-flop logic integrated circuit manufactured by onsemi, featuring 1 element with 22-bit configuration and tri-state non-inverted output. This component operates at a clock frequency of 250 MHz with a maximum propagation delay of 3.6ns at 3.3V with 30pF load. The device is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement planning.

Substiute Parts

74VCX16722MTDX

onsemiIn Stock: 735674VCX16722MTDX Datasheet

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SN74AVC16722DGGR

Texas InstrumentsIn Stock: 1223SN74AVC16722DGGR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74VCX16722MTDX is determined by the following critical parameters:

Functional Equivalence Requirements:

• D-Type flip-flop architecture with 1 element and 22-bit configuration
• Tri-state, non-inverted output configuration
• Positive edge trigger mechanism
• 64-TFSOP package with identical physical dimensions (0.240", 6.10mm Width)
• Surface mount mounting type

Electrical Compatibility Parameters:

• Supply voltage range must encompass or be compatible with 1.2V ~ 3.6V
• Operating temperature range: -40°C ~ 85°C
• Output drive capability: 24mA minimum for both high and low states
• Propagation delay performance within acceptable system timing margins

Compliance & Certification:

• REACH compliance status
• Moisture sensitivity level classification
• ECCN and HTSUS classifications for regulatory alignment

The SN74AVC16722DGGR from Texas Instruments meets these substitution criteria through identical functional architecture, package specification, and operating temperature range, with enhanced electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The SN74AVC16722DGGR qualifies as a functional substitute for the 74VCX16722MTDX based on the following engineering criteria:

Functional Compatibility: Both devices implement identical D-Type flip-flop architecture with 22-bit configuration, tri-state non-inverted output, and positive edge triggering. Package specifications are identical, enabling direct physical replacement without PCB redesign.

Regulatory & Compliance Alignment: Both components share identical REACH compliance status, ECCN classification (EAR99), HTSUS code (8542.39.0001), and moisture sensitivity level (MSL 1). This ensures equivalent regulatory treatment and supply chain compatibility.

Active Production Status: The SN74AVC16722DGGR is in active production status, whereas the 74VCX16722MTDX is obsolete. This substitution addresses long-term component availability and supply chain continuity.

Performance Trade-offs: The substitute exhibits faster propagation delay (2.6ns versus 3.6ns) and improved timing performance, which is advantageous for most applications. However, the substitute operates at a lower maximum clock frequency (175 MHz versus 250 MHz) and provides reduced output drive current (12mA versus 24mA). Applications requiring the full 250 MHz clock frequency or maximum 24mA output drive must evaluate system timing margins and load requirements before substitution.

Supply Voltage Consideration: The substitute's minimum supply voltage is 1.4V compared to 1.2V for the original part. Applications operating below 1.4V require alternative solutions.

Frequently Asked Questions (FAQ)

Q: Can the SN74AVC16722DGGR directly replace the 74VCX16722MTDX in existing designs?

A: Physical and functional replacement is possible due to identical package specifications and core logic architecture. However, electrical parameter differences must be evaluated. The substitute's reduced output drive current (12mA versus 24mA) and lower maximum clock frequency (175 MHz versus 250 MHz) require verification against system load and timing requirements.

Q: What is the primary reason for substitution?

A: The 74VCX16722MTDX is obsolete. The SN74AVC16722DGGR is an active production equivalent that maintains functional compatibility while ensuring long-term component availability.

Q: Are there packaging differences between these parts?

A: No. Both components use the 64-TFSOP package with identical physical dimensions (0.240", 6.10mm Width) and surface mount configuration. No PCB layout modifications are required.

Q: How do the propagation delay specifications compare?

A: The SN74AVC16722DGGR exhibits faster propagation delay (2.6ns at 3.3V, 30pF load) compared to the 74VCX16722MTDX (3.6ns at 3.3V, 30pF load). This faster performance is generally beneficial for system timing margins.

Q: What is the impact of the reduced output drive current?

A: The substitute provides 12mA output drive versus 24mA for the original part. Applications with high capacitive or resistive loads must verify that the reduced drive current is sufficient to meet timing and signal integrity requirements.

Q: Are there supply voltage compatibility issues?

A: The substitute's minimum supply voltage is 1.4V versus 1.2V for the original part. Applications operating at 1.2V or 1.3V require the original component or alternative solutions.

Q: Do both parts have identical regulatory compliance?

A: Yes. Both components share identical REACH compliance status, ECCN classification (EAR99), HTSUS code (8542.39.0001), and moisture sensitivity level (MSL 1), ensuring equivalent regulatory treatment.

Q: What is the quiescent current difference?

A: The SN74AVC16722DGGR has higher quiescent current (40 µA) compared to the 74VCX16722MTDX (20 µA). For battery-powered or ultra-low-power applications, this difference may be significant.