74FCT162H245CTPACT Equivalent & Substitute Parts

Part Overview

The 74FCT162H245CTPACT is a non-inverting transceiver logic IC manufactured by Texas Instruments, featuring 2 elements with 8 bits per element and 3-state output capability in a 48-TSSOP package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	74FCT162H245CTPACT
Manufacturer	Texas Instruments
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-TFSOP (0.240", 6.10mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the 74FCT162H245CTPACT are grouped based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

Logic Type: Transceiver, Non-Inverting
Number of Elements: 2
Number of Bits per Element: 8
Output Type: 3-State
Package / Case: 48-TFSOP (0.240", 6.10mm Width)
Operating Temperature Range: -40°C ~ 85°C (TA)
Voltage Supply Range: 4.5V ~ 5.5V
Current Output Capability: 24mA High, 24mA Low

Substitution Categories:

Category 1: Parametric Equivalents (Identical Electrical Specifications) Parts that match all critical electrical parameters and package specifications. These include 74FCT162245ATPACT, 74FCT162245CTPACT, 74FCT162H245ATPACT, and CY74FCT162245TPACT. All are obsolete 74FCT series devices with identical supply voltage, output current, and thermal characteristics.

Category 2: Manufacturer Recommended Substitutes (Different Electrical Characteristics) The SN74LVCR162245DGGR represents a manufacturer-recommended alternative with reduced supply voltage range (2.7V ~ 3.6V) and lower output current (12mA, 12mA). This part is active status and suitable for applications where lower voltage operation is acceptable. The 74ACT16245DGGR maintains identical voltage and current specifications but represents an alternative active-status option.

Category 3: Cross-Manufacturer Variants (Same Base Function, Different Packaging) Parts such as 74FCT162245ATPAG (Renesas), 74FCT162245ATPVG (Renesas), 74FCT162245CTPAG (IDT), and 74FCT16245ATPAG (IDT) provide equivalent functionality with variations in packaging format and manufacturer source.

Parameter Comparison

Part Number	Manufacturer	Logic Type	Elements / Bits	Output Type	Current (H/L)	Voltage Supply	Temp Range	Package	Status
74FCT162H245CTPACT	Texas Instruments	Transceiver, Non-Inverting	2 / 8	3-State	24mA, 24mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TFSOP	Obsolete
74FCT162245ATPACT	Texas Instruments	Transceiver, Non-Inverting	2 / 8	3-State	24mA, 24mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TFSOP	Obsolete
74FCT162245CTPACT	Texas Instruments	Transceiver, Non-Inverting	2 / 8	3-State	24mA, 24mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TFSOP	Obsolete
74FCT162H245ATPACT	Texas Instruments	Transceiver, Non-Inverting	2 / 8	3-State	24mA, 24mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TFSOP	Obsolete
CY74FCT162245TPACT	Texas Instruments	Transceiver, Non-Inverting	2 / 8	3-State	24mA, 24mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TFSOP	Obsolete
74ACT16245DGGR	Texas Instruments	Transceiver, Non-Inverting	2 / 8	3-State	24mA, 24mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TFSOP	Active
SN74LVCR162245DGGR	Texas Instruments	Transceiver, Non-Inverting	2 / 8	3-State	12mA, 12mA	2.7V ~ 3.6V	-40°C ~ 85°C	48-TFSOP	Active
74FCT162245ATPAG	Renesas Electronics	Transceiver, Non-Inverting	2 / 8	3-State	24mA, 24mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TFSOP	Obsolete
74FCT162245ATPVG	Renesas Electronics	Transceiver, Non-Inverting	2 / 8	3-State	24mA, 24mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-BSSOP	Obsolete
74FCT162245CTPAG	IDT	Transceiver, Non-Inverting	2 / 8	3-State	24mA, 24mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TFSOP	Active
74FCT16245ATPAG	IDT	Transceiver, Non-Inverting	2 / 8	3-State	32mA, 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TFSOP	Active

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): The 74FCT162245CTPAG (IDT, Active status) provides the most direct replacement with identical electrical specifications (24mA output current, 4.5V ~ 5.5V supply) and the same 48-TFSOP package. This part is currently in active production status, ensuring long-term availability and supply chain stability.

For Active-Status Alternatives: The 74ACT16245DGGR (Texas Instruments, Active status) maintains identical voltage supply and output current specifications while offering active product status. This part is suitable for new designs requiring long-term component availability.

For Low-Voltage Applications: The SN74LVCR162245DGGR (Texas Instruments, Active status) is appropriate only for applications where the reduced supply voltage range (2.7V ~ 3.6V) and lower output current (12mA, 12mA) are acceptable. This part is not suitable for direct replacement in 5V systems.

For Higher Output Current Requirements: The 74FCT16245ATPAG (IDT, Active status) provides increased output current capability (32mA High, 64mA Low) while maintaining the same supply voltage range and package. This part is suitable for applications requiring higher drive capability.

Compliance Considerations: All listed substitute parts maintain ROHS3 compliance and EAR99 ECCN classification consistent with the original part. Moisture sensitivity levels vary; verify MSL requirements for your specific assembly process.

Frequently Asked Questions (FAQ)

Q: Can the SN74LVCR162245DGGR directly replace the 74FCT162H245CTPACT?

A: No. While both are non-inverting transceivers with identical pin count and package, the SN74LVCR162245DGGR operates at 2.7V ~ 3.6V supply voltage compared to the 4.5V ~ 5.5V requirement of the 74FCT162H245CTPACT. Direct substitution is only possible if your circuit operates at the lower voltage range. Output current is also reduced (12mA vs. 24mA).

Q: What is the difference between 74FCT162245ATPAG and 74FCT16245ATPAG?

A: The 74FCT162245ATPAG maintains the original 24mA output current specification. The 74FCT16245ATPAG provides higher output current (32mA High, 64mA Low). Both use the same 48-TFSOP package and 4.5V ~ 5.5V supply voltage. Selection depends on your circuit's current drive requirements.

Q: Why is the 74FCT162H245CTPACT marked as obsolete?

A: Obsolete status indicates the part is no longer in active production. The 74FCT162245CTPAG (IDT) and 74ACT16245DGGR (Texas Instruments) are active-status alternatives that provide equivalent or superior specifications with assured long-term availability.

Q: Are all substitute parts available in the same package?

A: Most substitutes use the 48-TFSOP package. The 74FCT162245ATPVG uses a 48-BSSOP package (0.295", 7.50mm Width), which is physically larger. Verify PCB layout compatibility before selecting this variant.

Q: What is the significance of the MSL (Moisture Sensitivity Level) difference?

A: The original part has MSL 1 (Unlimited), meaning no moisture bake-out is required. The 74FCT162245ATPVG has MSL 3 (168 Hours), requiring moisture control during storage and assembly. Verify your manufacturing process can accommodate this requirement.

Q: Can I use 74FCT162245CTPAG as a drop-in replacement?

A: Yes. The 74FCT162245CTPAG matches all critical electrical parameters (24mA output, 4.5V ~ 5.5V supply, -40°C ~ 85°C operating range) and uses the identical 48-TFSOP package. It is currently in active production status.

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