CY74FCT162245ATPVC Equivalent & Substitute Parts

Part Overview

The CY74FCT162245ATPVC 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 component is classified as obsolete, which necessitates identification of equivalent and substitute parts for ongoing design support and procurement continuity. The part 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	CY74FCT162245ATPVC
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

Substitute Part Grouping Explanation

Substitution of the CY74FCT162245ATPVC 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

Electrical Compatibility Requirements:

Voltage supply range: 4.5V ~ 5.5V (primary criterion) or 2.7V ~ 3.6V (for low-voltage variants)
Output current capability: 24mA minimum (high and low)
Operating temperature range: -40°C ~ 85°C

Physical Compatibility Requirements:

Package type: 48-SSOP or 48-TSSOP
Mounting type: Surface Mount

Substitute parts are grouped into two categories: MFR Recommended substitutes (manufacturer-endorsed alternatives) and Parametric Equivalents (parts meeting identical electrical and functional specifications).

Parameter Comparison

Part Number	Manufacturer	Logic Type	Elements / Bits	Output Current (mA)	Supply Voltage	Package	Product Status
CY74FCT162245ATPVC	Texas Instruments	Transceiver, Non-Inverting	2 / 8	24 / 24	4.5V ~ 5.5V	48-BSSOP	Obsolete
SN74LVCR162245DLR	Texas Instruments	Transceiver, Non-Inverting	2 / 8	12 / 12	2.7V ~ 3.6V	48-BSSOP	Active
74ACT16245DL	Texas Instruments	Transceiver, Non-Inverting	2 / 8	24 / 24	4.5V ~ 5.5V	48-BSSOP	Last Time Buy
CY74FCT162245TPVC	National Semiconductor	Transceiver, Non-Inverting	2 / 8	24 / 24	4.5V ~ 5.5V	48-BSSOP	Active
74FCT162245ATPAG	Renesas Electronics Corporation	Transceiver, Non-Inverting	2 / 8	24 / 24	4.5V ~ 5.5V	48-TSSOP	Obsolete
74FCT162245CTPAG	IDT, Integrated Device Technology Inc	Transceiver, Non-Inverting	2 / 8	24 / 24	4.5V ~ 5.5V	48-TSSOP	Active
74FCT162245CTPAG8	IDT, Integrated Device Technology Inc	Transceiver, Non-Inverting	2 / 8	24 / 24	4.5V ~ 5.5V	48-TSSOP	Active
74FCT16245ATPAG	IDT, Integrated Device Technology Inc	Transceiver, Non-Inverting	2 / 8	32 / 64	4.5V ~ 5.5V	48-TSSOP	Active
74FCT16245ATPAG8	Renesas Electronics Corporation	Transceiver, Non-Inverting	2 / 8	32 / 64	4.5V ~ 5.5V	48-TSSOP	Active
74FCT16245ATPVG	IDT, Integrated Device Technology Inc	Transceiver, Non-Inverting	2 / 8	32 / 64	4.5V ~ 5.5V	48-BSSOP	Active
74FCT16245CTPAG	Renesas Electronics Corporation	Transceiver, Non-Inverting	2 / 8	32 / 64	4.5V ~ 5.5V	48-TSSOP	Active

Engineering Selection Recommendations

Direct Electrical Equivalent (Same Supply Voltage and Output Current):

The 74ACT16245DL and CY74FCT162245TPVC provide identical electrical specifications to the CY74FCT162245ATPVC, maintaining 24mA output current capability and 4.5V to 5.5V supply voltage operation. The 74ACT16245DL carries Last Time Buy status, indicating limited future availability. The CY74FCT162245TPVC maintains Active product status and is available in bulk packaging, making it the preferred direct equivalent for 48-BSSOP package applications.

Higher Output Current Alternatives (32mA/64mA):

The 74FCT16245ATPAG, 74FCT16245ATPAG8, 74FCT16245ATPVG, and 74FCT16245CTPAG provide enhanced output current capability (32mA high, 64mA low) while maintaining identical supply voltage and functional specifications. These parts are suitable for applications requiring higher drive capability. The 74FCT16245ATPVG maintains the 48-BSSOP package format, while others use 48-TSSOP packaging.

Low-Voltage Alternative:

The SN74LVCR162245DLR operates at reduced supply voltage (2.7V to 3.6V) with lower output current (12mA). This part is suitable only for systems designed for low-voltage operation and is not a direct substitute for 5V applications.

Compliance and Availability:

All recommended substitutes maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited). Parts with Active product status (CY74FCT162245TPVC, 74FCT162245CTPAG, 74FCT162245CTPAG8, 74FCT16245ATPAG, 74FCT16245ATPAG8, 74FCT16245ATPVG, 74FCT16245CTPAG) provide long-term procurement security compared to the obsolete original part.

Frequently Asked Questions (FAQ)

Q: Can I use SN74LVCR162245DLR as a direct replacement for CY74FCT162245ATPVC?

A: No. The SN74LVCR162245DLR operates at 2.7V to 3.6V supply voltage, while the CY74FCT162245ATPVC requires 4.5V to 5.5V. This part is suitable only for low-voltage system designs and will not function in 5V applications.

Q: What is the difference between 74FCT162245 and 74FCT16245 part numbers?

A: The 74FCT162245 series maintains 24mA output current specification. The 74FCT16245 series provides higher output current capability (32mA high, 64mA low). Both are functionally equivalent transceiver designs with identical element and bit configurations. Selection depends on application current requirements.

Q: Are 48-BSSOP and 48-TSSOP packages interchangeable?

A: Both packages are 48-pin surface mount configurations with identical pin assignments and electrical function. The 48-BSSOP has a 0.295" width (7.50mm), while the 48-TSSOP has a 0.240" width (6.10mm). PCB layout and footprint design must accommodate the specific package width. Electrical performance is equivalent between package types.

Q: Why is CY74FCT162245TPVC recommended over 74ACT16245DL?

A: Both parts provide identical electrical specifications. The CY74FCT162245TPVC maintains Active product status with ongoing manufacturer support, while 74ACT16245DL is designated Last Time Buy, indicating limited future availability and potential supply constraints.

Q: Can I substitute a part with higher output current (32mA/64mA) in place of the original 24mA specification?

A: Yes. Higher output current capability is a superset of the original specification and will function in all applications designed for the 24mA part. The 74FCT16245 series variants provide this enhanced capability while maintaining all other electrical and functional parameters.

Q: What packaging options are available for equivalent parts?

A: Equivalent parts are available in two surface mount package formats: 48-BSSOP (0.295" width) and 48-TSSOP (0.240" width). The CY74FCT162245TPVC and 74FCT16245ATPVG use 48-BSSOP packaging, matching the original part. Other variants use 48-TSSOP packaging, which requires PCB footprint adjustment due to reduced width.

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