74FCT162H245CTPVC Equivalent & Substitute Parts

Part Overview

The 74FCT162H245CTPVC 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-SSOP package. This part is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and procurement continuity. The device operates within a 4.5V to 5.5V supply voltage range and is rated for -40°C to 85°C operating temperature.

Key Parameters

Parameter	Value
Manufacturer Part Number	74FCT162H245CTPVC
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-BSSOP (0.295", 7.50mm Width)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 74FCT162H245CTPVC is determined by the following critical parameters:

Functional Equivalence Requirements:

Logic type: Transceiver, Non-Inverting
Number of elements: 2
Number of bits per element: 8
Output type: 3-State
Operating temperature range: -40°C ~ 85°C

Electrical Compatibility Parameters:

Voltage supply range: 4.5V ~ 5.5V (primary requirement) or 2.7V ~ 3.6V (low-voltage alternative)
Output current capability: 24mA minimum (high/low)
Package compatibility: 48-SSOP or 48-TSSOP

Substitute parts are categorized into two groups:

Group 1 - Parametric Equivalents (Identical Electrical Specifications): Parts maintaining 4.5V ~ 5.5V supply voltage, 24mA output current, and equivalent functional parameters. These include 74ACT16245DL and CY74FCT162245TPVC.

Group 2 - Manufacturer Recommended Substitutes (Functional Equivalents with Variations): Parts with identical functional architecture but differing in supply voltage (2.7V ~ 3.6V), output current (12mA or 32mA/64mA), or package format (48-TSSOP). These include SN74LVCR162245DLR, 74FCT162245ATPAG, 74FCT162245CTPAG, and related variants.

Parameter Comparison

Part Number	Manufacturer	Logic Type	Elements / Bits	Output Current (H/L)	Supply Voltage	Package	Product Status
74FCT162H245CTPVC	Texas Instruments	Transceiver, Non-Inverting	2 / 8	24mA, 24mA	4.5V ~ 5.5V	48-BSSOP	Obsolete
SN74LVCR162245DLR	Texas Instruments	Transceiver, Non-Inverting	2 / 8	12mA, 12mA	2.7V ~ 3.6V	48-BSSOP	Active
74ACT16245DL	Texas Instruments	Transceiver, Non-Inverting	2 / 8	24mA, 24mA	4.5V ~ 5.5V	48-BSSOP	Last Time Buy
CY74FCT162245TPVC	National Semiconductor	Transceiver, Non-Inverting	2 / 8	24mA, 24mA	4.5V ~ 5.5V	48-BSSOP	Active
74FCT162245ATPAG	Renesas Electronics Corporation	Transceiver, Non-Inverting	2 / 8	24mA, 24mA	4.5V ~ 5.5V	48-TSSOP	Obsolete
74FCT162245CTPAG	IDT, Integrated Device Technology Inc	Transceiver, Non-Inverting	2 / 8	24mA, 24mA	4.5V ~ 5.5V	48-TSSOP	Active
74FCT162245CTPAG8	IDT, Integrated Device Technology Inc	Transceiver, Non-Inverting	2 / 8	24mA, 24mA	4.5V ~ 5.5V	48-TSSOP	Active
74FCT16245ATPAG	IDT, Integrated Device Technology Inc	Transceiver, Non-Inverting	2 / 8	32mA, 64mA	4.5V ~ 5.5V	48-TSSOP	Active
74FCT16245ATPAG8	Renesas Electronics Corporation	Transceiver, Non-Inverting	2 / 8	32mA, 64mA	4.5V ~ 5.5V	48-TSSOP	Active
74FCT16245ATPVG	IDT, Integrated Device Technology Inc	Transceiver, Non-Inverting	2 / 8	32mA, 64mA	4.5V ~ 5.5V	48-BSSOP	Active
74FCT16245CTPAG	Renesas Electronics Corporation	Transceiver, Non-Inverting	2 / 8	32mA, 64mA	4.5V ~ 5.5V	48-TSSOP	Active

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance):

CY74FCT162245TPVC is the preferred direct substitute, maintaining identical output current specifications (24mA, 24mA), supply voltage range (4.5V ~ 5.5V), and 48-BSSOP package format. This part is manufactured by National Semiconductor and carries Active product status, ensuring long-term availability and supply chain stability.

74ACT16245DL provides an alternative parametric equivalent with identical electrical characteristics and Active product status from Texas Instruments, though classified as Last Time Buy. This part maintains the same 48-BSSOP package and electrical specifications.

For Supply Voltage Flexibility:

SN74LVCR162245DLR is suitable for applications requiring lower supply voltage operation (2.7V ~ 3.6V). This part features reduced output current (12mA, 12mA) and Active product status from Texas Instruments. Selection of this part requires verification that reduced output current meets system requirements.

For Package Format Alternatives:

74FCT162245CTPAG and 74FCT162245CTPAG8 provide Active status alternatives in 48-TSSOP package format with identical electrical specifications (24mA, 24mA output current, 4.5V ~ 5.5V supply). These parts are manufactured by IDT and accommodate designs requiring the narrower 48-TSSOP footprint.

74FCT16245ATPAG, 74FCT16245ATPAG8, 74FCT16245ATPVG, and 74FCT16245CTPAG offer enhanced output current capability (32mA, 64mA) with Active product status. These parts are suitable for applications requiring higher drive capability while maintaining 4.5V ~ 5.5V supply voltage compatibility.

Compliance Considerations:

All recommended substitutes maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, consistent with the original part specifications. Selection should prioritize parts with Active product status to ensure sustained availability and manufacturing support.

Frequently Asked Questions (FAQ)

Q: Can SN74LVCR162245DLR replace 74FCT162H245CTPVC in existing designs?

A: SN74LVCR162245DLR is functionally equivalent but operates at 2.7V ~ 3.6V supply voltage with reduced output current (12mA vs. 24mA). Direct substitution requires verification that the lower supply voltage and output current meet system requirements. The part is not suitable for 5V-only designs without voltage regulation modifications.

Q: What is the difference between 48-BSSOP and 48-TSSOP packages?

A: 48-BSSOP (0.295", 7.50mm width) and 48-TSSOP (0.240", 6.10mm width) are both surface-mount packages with identical pin counts and functionality. The 48-TSSOP is narrower and requires PCB layout adjustment. Electrical performance is equivalent; selection depends on available PCB footprint space.

Q: Why do some substitutes have higher output current (32mA, 64mA)?

A: Parts such as 74FCT16245ATPAG and 74FCT16245CTPAG feature enhanced output current capability, providing greater drive strength for applications requiring higher fan-out or lower impedance loads. These parts are backward-compatible with designs specified for 24mA output current but offer additional performance margin.

Q: Is CY74FCT162245TPVC a direct replacement for the obsolete 74FCT162H245CTPVC?

A: Yes. CY74FCT162245TPVC maintains identical electrical specifications (24mA output current, 4.5V ~ 5.5V supply voltage), identical package format (48-BSSOP), and equivalent functional architecture. The part carries Active product status, ensuring sustained availability.

Q: What compliance certifications apply to all substitute parts?

A: All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating. REACH status is unaffected for all parts. These certifications are consistent with the original 74FCT162H245CTPVC specifications.

Q: Can I use 74FCT162245ATPAG as a substitute if my PCB is designed for 48-BSSOP?

A: No. 74FCT162245ATPAG uses 48-TSSOP package format, which has different pin spacing and footprint dimensions than 48-BSSOP. PCB layout modification is required. For 48-BSSOP compatibility, select CY74FCT162245TPVC, 74ACT16245DL, or 74FCT16245ATPVG.

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