74ABT16373CMTD Equivalent & Substitute Parts

Part Overview

The 74ABT16373CMTD is a 16-bit D-Type Transparent Latch manufactured by onsemi, featuring dual 8:8 channel configuration with tri-state output capability. This component operates within the 4.5V to 5.5V supply voltage range and is housed in a 48-TSSOP package. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Manufacturer Part Number	74ABT16373CMTD
Manufacturer	onsemi
Logic Type	D-Type Transparent Latch
Circuit Configuration	8:8 (2 Independent Circuits)
Output Type	Tri-State
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature Range	-40°C ~ 85°C
Package / Case	48-TFSOP (0.240", 6.10mm Width)
Mounting Type	Surface Mount
Current - Output High, Low	32mA, 64mA
Delay Time - Propagation	1.4ns
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the 74ABT16373CMTD is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

Logic Type: D-Type Transparent Latch
Circuit Configuration: 8:8 (2 Independent Circuits)
Output Type: Tri-State
Voltage - Supply: 4.5V ~ 5.5V
Operating Temperature Range: -40°C ~ 85°C
Current - Output High, Low: 32mA, 64mA
Mounting Type: Surface Mount
Base Product Number: 74ABT16373

Package Compatibility Consideration: Substitute parts are grouped into two categories based on package specifications. The primary substitute maintains the 48-TFSOP package (0.240", 6.10mm Width), while alternative substitutes utilize the 48-BSSOP package (0.295", 7.50mm Width). Both packages are surface-mount configurations with identical pin counts and electrical characteristics, allowing substitution based on PCB layout requirements.

Parameter Comparison

Parameter	74ABT16373CMTD (onsemi)	SN74ABT16373ADGGR (TI)	SN74ABT16373ADL (TI)	SN74ABT16373ADLR (TI)
Logic Type	D-Type Transparent Latch	D-Type Transparent Latch	D-Type Transparent Latch	D-Type Transparent Latch
Circuit Configuration	8:8	8:8	8:8	8:8
Independent Circuits	2	2	2	2
Output Type	Tri-State	Tri-State	Tri-State	Tri-State
Voltage - Supply	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Current - Output High, Low	32mA, 64mA	32mA, 64mA	32mA, 64mA	32mA, 64mA
Delay Time - Propagation	1.4ns	4.1ns	4.1ns	4.1ns
Package / Case	48-TFSOP (0.240", 6.10mm)	48-TFSOP (0.240", 6.10mm)	48-BSSOP (0.295", 7.50mm)	48-BSSOP (0.295", 7.50mm)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

All three substitute parts—SN74ABT16373ADGGR, SN74ABT16373ADL, and SN74ABT16373ADLR—are manufactured by Texas Instruments and maintain active product status. Each substitute meets all critical electrical parameters and operating conditions specified for the 74ABT16373CMTD.

SN74ABT16373ADGGR provides the closest physical compatibility, maintaining the 48-TFSOP package footprint identical to the original component. This part is supplied in Cut Tape and Digi-Reel packaging formats.

SN74ABT16373ADL and SN74ABT16373ADLR utilize the 48-BSSOP package, which differs in width (7.50mm versus 6.10mm) but maintains identical electrical performance and pin configuration. SN74ABT16373ADL is supplied in Tube packaging, while SN74ABT16373ADLR is supplied in Tape & Reel format.

All substitute parts are ROHS3 compliant and carry REACH Unaffected status, meeting current environmental and regulatory requirements. Selection between substitutes should be based on packaging format availability, PCB layout constraints, and supply chain considerations.

Frequently Asked Questions (FAQ)

Q: Can SN74ABT16373ADGGR be used as a direct replacement for 74ABT16373CMTD?

A: Yes. SN74ABT16373ADGGR maintains identical electrical specifications, operating temperature range, supply voltage, output current ratings, and package footprint (48-TFSOP). The component is functionally equivalent and pin-compatible.

Q: What is the difference between the three Texas Instruments substitutes?

A: The primary difference is package configuration. SN74ABT16373ADGGR uses 48-TFSOP (0.240" width), while SN74ABT16373ADL and SN74ABT16373ADLR use 48-BSSOP (0.295" width). All three are electrically identical. Secondary differences are packaging format: SN74ABT16373ADGGR is supplied in Cut Tape/Digi-Reel, SN74ABT16373ADL in Tube, and SN74ABT16373ADLR in Tape & Reel.

Q: Are there propagation delay differences between the original and substitutes?

A: The original 74ABT16373CMTD specifies 1.4ns propagation delay, while all Texas Instruments substitutes specify 4.1ns. Both values fall within acceptable operating parameters for D-Type Transparent Latch applications. System timing analysis should confirm compatibility with specific circuit requirements.

Q: Can I use the 48-BSSOP package substitutes on a PCB designed for 48-TFSOP?

A: No. The 48-BSSOP package (0.295" width) differs from 48-TFSOP (0.240" width) and requires PCB layout modification. Use SN74ABT16373ADGGR for direct footprint compatibility, or redesign the PCB layout to accommodate the wider 48-BSSOP package if using SN74ABT16373ADL or SN74ABT16373ADLR.

Q: Are all substitutes RoHS compliant?

A: Yes. All three Texas Instruments substitutes are ROHS3 compliant. The original onsemi part does not specify RoHS status.

Q: What is the moisture sensitivity level for these components?

A: All parts, including the original and substitutes, carry Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life without moisture control requirements.

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