74ACT16245DLG4 Equivalent & Substitute Parts

Part Overview

The 74ACT16245DLG4 is a non-inverting transceiver logic IC manufactured by Texas Instruments, featuring 2 elements with 8 bits per element and 3-state output capability. This 48-SSOP surface mount device operates within a 4.5V to 5.5V supply voltage range and is rated for -40°C to 85°C operating temperature. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing system support and new designs.

Key Parameters

Parameter	Value
Logic Type	Transceiver, Non-Inverting
Number of Elements	2
Number of Bits per Element	8
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

Substitute Part Grouping Explanation

Substitution of the 74ACT16245DLG4 is determined by strict equivalence across the following parameters: logic type (non-inverting transceiver), element count (2), bits per element (8), output type (3-state), output current specifications (24mA high and low), supply voltage range (4.5V to 5.5V), operating temperature range (-40°C to 85°C), and physical package (48-BSSOP). All identified substitute parts maintain identical electrical and mechanical specifications. Substitutes are grouped by product status and manufacturer to facilitate selection based on availability and compliance requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Logic Type	Elements	Bits/Element	Output Type	Current (mA)	Supply Voltage	Temp Range	Package	Product Status	RoHS	MSL
74ACT16245DLG4	Texas Instruments	Non-Inverting	2	8	3-State	24/24	4.5-5.5V	-40 to 85°C	48-BSSOP	Discontinued	ROHS3	1
74ACT16245DL	Texas Instruments	Non-Inverting	2	8	3-State	24/24	4.5-5.5V	-40 to 85°C	48-BSSOP	Last Time Buy	ROHS3	1
CY74FCT162245TPVC	National Semiconductor	Non-Inverting	2	8	3-State	24/24	4.5-5.5V	-40 to 85°C	48-BSSOP	Active	Not specified	Not specified
74ACT16623DL	Texas Instruments	Non-Inverting	2	8	3-State	24/24	4.5-5.5V	-40 to 85°C	48-BSSOP	Last Time Buy	ROHS3	1
74FCT162245ATPVG	Renesas Electronics Corporation	Non-Inverting	2	8	3-State	24/24	4.5-5.5V	-40 to 85°C	48-BSSOP	Obsolete	ROHS3	3
74FCT162H245ATPVC	Texas Instruments	Non-Inverting	2	8	3-State	24/24	4.5-5.5V	-40 to 85°C	48-BSSOP	Obsolete	ROHS3	1
74FCT162H245CTPVC	Cypress Semiconductor Corp	Non-Inverting	2	8	3-State	24/24	4.5-5.5V	-40 to 85°C	48-BSSOP	Active	Not specified	1
CY74FCT162245ATPVC	Cypress Semiconductor Corp	Non-Inverting	2	8	3-State	24/24	4.5-5.5V	-40 to 85°C	48-BSSOP	Active	Not specified	1
CY74FCT162245CTPVC	Texas Instruments	Non-Inverting	2	8	3-State	24/24	4.5-5.5V	-40 to 85°C	48-BSSOP	Obsolete	ROHS3	1

Engineering Selection Recommendations

For new designs and ongoing production, prioritize parts with Active product status. CY74FCT162245TPVC (National Semiconductor), 74FCT162H245CTPVC (Cypress Semiconductor), CY74FCT162245ATPVC (Cypress Semiconductor), and CY74FCT162245CTPVC (Texas Instruments) maintain active availability. All substitute parts meet ROHS3 compliance where specified and maintain identical electrical performance within the specified operating parameters.

For legacy system support where the original 74ACT16245DLG4 is no longer available, 74ACT16245DL represents the manufacturer-recommended alternative from Texas Instruments, currently in Last Time Buy status. This part maintains identical specifications and ROHS3 compliance with MSL rating of 1.

Parts with Obsolete status (74FCT162245ATPVG, 74FCT162H245ATPVC, CY74FCT162245CTPVC) remain electrically equivalent but may have limited availability. The 74FCT162245ATPVG carries MSL rating of 3 (168 Hours), which may impact moisture-sensitive storage requirements compared to MSL 1 alternatives.

Frequently Asked Questions (FAQ)

Q: Can I directly replace 74ACT16245DLG4 with any of the listed substitutes?

A: Yes. All listed parts maintain identical electrical specifications: 2-element, 8-bit non-inverting transceiver with 3-state output, 24mA output current, 4.5V to 5.5V supply voltage, -40°C to 85°C operating temperature, and 48-BSSOP package. Physical and functional compatibility is assured.

Q: What is the difference between 74ACT16245DL and 74ACT16245DLG4?

A: Both parts are electrically identical. The primary difference is packaging: 74ACT16245DL is supplied in Tube packaging, while 74ACT16245DLG4 uses a different packaging designation. Both maintain ROHS3 compliance and MSL rating of 1.

Q: Why are some substitutes marked as Obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. These parts may still be available from inventory but are not recommended for new designs. Active status parts are preferred for long-term supply chain stability.

Q: Does MSL rating affect substitution compatibility?

A: MSL (Moisture Sensitivity Level) rating does not affect electrical compatibility but impacts storage and handling requirements. MSL 1 (Unlimited) parts like 74ACT16245DL, 74FCT162H245ATPVC, and CY74FCT162245ATPVC require no special moisture control. MSL 3 parts like 74FCT162245ATPVG require controlled storage (168 hours maximum at 30°C/60% RH before baking).

Q: Are all substitutes available in the same 48-BSSOP package?

A: Yes. All listed substitute parts use the 48-BSSOP (0.295", 7.50mm Width) package, ensuring mechanical compatibility with existing PCB layouts and sockets.

Q: Which substitute offers the best long-term availability?

A: CY74FCT162245TPVC (National Semiconductor), 74FCT162H245CTPVC (Cypress Semiconductor), and CY74FCT162245ATPVC (Cypress Semiconductor) maintain Active product status, indicating ongoing production and supply availability.

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