CY74FCT16245TPVC Equivalent & Substitute Parts

Part Overview

The CY74FCT16245TPVC 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 component operates within the 4.5V to 5.5V supply voltage range and is housed in a 48-SSOP package. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new design implementations.

Key Parameters

Parameter	Value
Manufacturer Part Number	CY74FCT16245TPVC
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	32mA, 64mA
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 for the CY74FCT16245TPVC is determined by the following critical parameters:

Functional Equivalence: Logic type (Transceiver, Non-Inverting), number of elements (2), and bits per element (8) must remain constant.

Electrical Compatibility: Supply voltage range, output current specifications, and operating temperature range define the electrical substitution boundaries.

Package Compatibility: The 48-SSOP or 48-TSSOP package footprints are mechanically and electrically compatible for PCB integration.

Compliance Requirements: RoHS3 compliance and MSL ratings ensure regulatory and manufacturing process compatibility.

Substitute parts are grouped into two categories:

Direct Functional Equivalents (74FCT Series): Parts maintaining identical supply voltage (4.5V ~ 5.5V), output current (32mA, 64mA), and package compatibility with active product status.
Functional Equivalents with Reduced Output Current (74FCT162245 Series): Parts with identical supply voltage and package compatibility but reduced output current (24mA, 24mA), suitable for applications not requiring maximum drive capability.
Low-Voltage Alternative (SN74LVCR16245ADLR): A voltage-reduced substitute operating at 1.65V ~ 3.6V with lower output current, applicable only to systems designed for low-voltage operation.

Parameter Comparison

Part Number	Manufacturer	Logic Type	Elements / Bits	Output Current (H/L)	Supply Voltage	Package	Product Status	MSL
CY74FCT16245TPVC	Texas Instruments	Transceiver, Non-Inverting	2 / 8	32mA, 64mA	4.5V ~ 5.5V	48-BSSOP	Obsolete	1
SN74LVCR16245ADLR	Texas Instruments	Transceiver, Non-Inverting	2 / 8	12mA, 12mA	1.65V ~ 3.6V	48-BSSOP	Active	1
74FCT162245ATPAG	Renesas Electronics Corporation	Transceiver, Non-Inverting	2 / 8	24mA, 24mA	4.5V ~ 5.5V	48-TSSOP	Obsolete	1
74FCT162245ATPVG	Renesas Electronics Corporation	Transceiver, Non-Inverting	2 / 8	24mA, 24mA	4.5V ~ 5.5V	48-SSOP	Obsolete	3
74FCT162245CTPAG	IDT, Integrated Device Technology Inc	Transceiver, Non-Inverting	2 / 8	24mA, 24mA	4.5V ~ 5.5V	48-TSSOP	Active	Not specified
74FCT162245CTPAG8	IDT, Integrated Device Technology Inc	Transceiver, Non-Inverting	2 / 8	24mA, 24mA	4.5V ~ 5.5V	48-TSSOP	Active	Not specified
74FCT16245ATPAG	IDT, Integrated Device Technology Inc	Transceiver, Non-Inverting	2 / 8	32mA, 64mA	4.5V ~ 5.5V	48-TSSOP	Active	Not specified
74FCT16245ATPAG8	Renesas Electronics Corporation	Transceiver, Non-Inverting	2 / 8	32mA, 64mA	4.5V ~ 5.5V	48-TSSOP	Active	1
74FCT16245CTPAG	Renesas Electronics Corporation	Transceiver, Non-Inverting	2 / 8	32mA, 64mA	4.5V ~ 5.5V	48-TSSOP	Active	1
74FCT16245CTPAG8	Renesas Electronics Corporation	Transceiver, Non-Inverting	2 / 8	32mA, 64mA	4.5V ~ 5.5V	48-TSSOP	Active	1
74FCT16245CTPVG8	IDT, Integrated Device Technology Inc	Transceiver, Non-Inverting	2 / 8	32mA, 64mA	4.5V ~ 5.5V	48-SSOP	Active	Not specified

Engineering Selection Recommendations

For Direct Replacement (Identical Output Current):

Select 74FCT16245ATPAG, 74FCT16245ATPAG8, 74FCT16245CTPAG, 74FCT16245CTPAG8, or 74FCT16245CTPVG8. These parts maintain the 32mA/64mA output current specification of the original CY74FCT16245TPVC. Parts with active product status (74FCT16245ATPAG, 74FCT16245ATPAG8, 74FCT16245CTPAG, 74FCT16245CTPAG8, 74FCT16245CTPVG8) are preferred for new designs and ongoing production. All are RoHS3 compliant and operate within the identical 4.5V ~ 5.5V supply voltage range.

For Reduced Output Current Applications:

Select 74FCT162245ATPAG, 74FCT162245ATPVG, 74FCT162245CTPAG, or 74FCT162245CTPAG8. These parts provide 24mA/24mA output current, suitable for applications where maximum drive capability is not required. Parts with active product status (74FCT162245CTPAG, 74FCT162245CTPAG8) are preferred.

For Low-Voltage System Integration:

Select SN74LVCR16245ADLR only if the system operates at 1.65V ~ 3.6V supply voltage. This part is active and RoHS3 compliant but provides reduced output current (12mA, 12mA) and is not suitable for 5V systems.

Package Considerations:

The 48-BSSOP package (0.295" width) is directly compatible with the original CY74FCT16245TPVC. The 48-TSSOP package (0.240" width) offers a smaller footprint and is compatible with updated PCB designs. Both packages are mechanically and electrically interchangeable for this logic function.

Frequently Asked Questions (FAQ)

Q: Can I use 74FCT162245 series parts as direct replacements for CY74FCT16245TPVC?

A: The 74FCT162245 series maintains functional equivalence (2 elements, 8 bits per element, non-inverting transceiver, 3-state output) and operates within the same 4.5V ~ 5.5V supply voltage range. However, output current is reduced from 32mA/64mA to 24mA/24mA. Substitution is valid only if the application does not require the higher output current specification.

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

A: Both are 48-pin small-outline packages suitable for surface mount assembly. The 48-BSSOP has a 0.295" width, while the 48-TSSOP has a 0.240" width. The TSSOP package offers a smaller footprint. Both are electrically and mechanically compatible for this logic function, though PCB layout must accommodate the specific package dimensions.

Q: Are all substitute parts RoHS3 compliant?

A: All listed substitute parts are RoHS3 compliant. The original CY74FCT16245TPVC is also RoHS3 compliant. Compliance status is maintained across all recommended substitutes.

Q: Why is the CY74FCT16245TPVC classified as obsolete?

A: The original part is obsolete, but functionally equivalent active alternatives are available from multiple manufacturers including Renesas Electronics Corporation and IDT. Active product status ensures continued availability and manufacturing support.

Q: Can I substitute SN74LVCR16245ADLR in a 5V system?

A: No. The SN74LVCR16245ADLR operates at 1.65V ~ 3.6V supply voltage and is not suitable for 5V systems. This part is applicable only to low-voltage system designs.

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

A: MSL indicates the maximum time a component can be exposed to moisture before soldering. MSL 1 (Unlimited) allows indefinite storage without moisture control. MSL 3 (168 Hours) requires moisture control during storage and handling. For production environments with standard moisture control, both levels are acceptable.

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