74ACT16244DLRG4 Equivalent & Substitute Parts

Part Overview

The 74ACT16244DLRG4 is a non-inverting buffer logic IC manufactured by Texas Instruments, designed for 4-element, 4-bit per element configurations with 3-state output capability. This component operates within the 4.5V to 5.5V supply voltage range and is housed in a 48-BSSOP surface mount package. The part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing design requirements and production needs.

Key Parameters

Parameter	Specification
Manufacturer Part Number	74ACT16244DLRG4
Manufacturer	Texas Instruments
Logic Type	Buffer, Non-Inverting
Number of Elements	4
Number of Bits per Element	4
Output Type	3-State
Current - Output High, Low	24mA, 24mA
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	48-BSSOP (0.295", 7.50mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 74ACT16244DLRG4 is determined by strict equivalence across the following critical parameters:

Logic Type: Buffer, Non-Inverting
Number of Elements: 4
Number of Bits per Element: 4
Output Type: 3-State
Current - Output High, Low: 24mA, 24mA
Voltage - Supply: 4.5V ~ 5.5V
Operating Temperature: -40°C ~ 85°C (TA)
Package / Case: 48-BSSOP (0.295", 7.50mm Width)

All substitute parts listed maintain identical electrical and mechanical specifications across these parameters, ensuring direct functional compatibility in circuit applications.

Parameter Comparison

Parameter	74ACT16244DLRG4	74ACT16244DLR	74FCT162244ATPVCT	74FCT162244CTPVCT	CY74FCT162244TPVCT
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Cypress Semiconductor Corp	Cypress Semiconductor Corp
Logic Type	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting
Number of Elements	4	4	4	4	4
Number of Bits per Element	4	4	4	4	4
Output Type	3-State	3-State	3-State	3-State	3-State
Current - Output High, Low	24mA, 24mA	24mA, 24mA	24mA, 24mA	24mA, 24mA	24mA, 24mA
Voltage - Supply	4.5V ~ 5.5V	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	-40°C ~ 85°C
Package / Case	48-BSSOP	48-BSSOP	48-BSSOP	48-BSSOP	48-BSSOP
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	Not specified	Not specified
Product Status	Discontinued	Active	Obsolete	Active	Active

Engineering Selection Recommendations

Primary Recommendation: 74ACT16244DLR

The 74ACT16244DLR is the direct equivalent to the 74ACT16244DLRG4, manufactured by Texas Instruments with Active product status. This part maintains identical electrical specifications and RoHS3 compliance. The primary distinction is packaging format (Cut Tape & Digi-Reel versus the original packaging), which does not affect functional performance. This substitute offers the highest inventory availability at 15,782 pieces.

Secondary Recommendations: CY74FCT162244TPVCT and 74FCT162244CTPVCT

Both Cypress Semiconductor Corp parts (CY74FCT162244TPVCT and 74FCT162244CTPVCT) provide parametric equivalence with Active product status. These parts are from the 74FCT series rather than 74ACT, but maintain all critical electrical and mechanical specifications. CY74FCT162244TPVCT offers 2,311 pieces in inventory, while 74FCT162244CTPVCT provides 2,200 pieces.

Tertiary Option: 74FCT162244ATPVCT

The 74FCT162244ATPVCT from Texas Instruments maintains full parametric equivalence but carries Obsolete product status with limited inventory (995 pieces). This option is suitable only when other alternatives are unavailable.

Frequently Asked Questions (FAQ)

Q: Can the 74ACT16244DLR directly replace the 74ACT16244DLRG4 in existing designs?

A: Yes. The 74ACT16244DLR is a parametric equivalent with identical electrical specifications, output current ratings, supply voltage range, operating temperature range, and 48-BSSOP package dimensions. The only difference is packaging format (Cut Tape & Digi-Reel), which does not affect circuit performance.

Q: What is the difference between 74ACT and 74FCT series buffers?

A: Both series are non-inverting buffer logic ICs with identical electrical parameters for this application. The 74ACT series uses ACT technology, while 74FCT uses FCT technology. For the specified parameters in this comparison, both series deliver equivalent performance.

Q: Are Cypress Semiconductor parts compatible with Texas Instruments designs?

A: Yes, for this application. The CY74FCT162244TPVCT and 74FCT162244CTPVCT maintain all critical electrical specifications, output current ratings, supply voltage, operating temperature, and package dimensions required for direct substitution.

Q: Does packaging format affect circuit compatibility?

A: No. The 74ACT16244DLR (Cut Tape & Digi-Reel) and the original 74ACT16244DLRG4 use the same 48-BSSOP package with identical pin configuration and dimensions. Packaging format refers only to how the components are supplied, not their physical or electrical characteristics.

Q: Which substitute offers the best availability?

A: The 74ACT16244DLR provides the highest inventory availability at 15,782 pieces, making it the most accessible substitute for immediate procurement needs.

Q: Are all substitutes RoHS3 compliant?

A: The 74ACT16244DLR and 74FCT162244ATPVCT are confirmed ROHS3 compliant. RoHS compliance status is not specified for the Cypress Semiconductor parts (CY74FCT162244TPVCT and 74FCT162244CTPVCT) in the provided data.

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