PI74FCT16245ATA Equivalent & Substitute Parts

Part Overview

The PI74FCT16245ATA is a non-inverting transceiver logic IC manufactured by Diodes Incorporated, designed for 2-element, 8-bit per element data transmission with 3-state output capability. This component operates within a 4.5V to 5.5V supply voltage range and is housed in a 48-TSSOP package. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

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	32mA, 64mA
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	48-TFSOP (0.240", 6.10mm Width)
Series	74FCT

Substitute Part Grouping Explanation

Substitution eligibility for the PI74FCT16245ATA is determined by strict alignment with the following critical parameters:

Logic Type & Configuration: Must be non-inverting transceiver with 2 elements and 8 bits per element
Output Characteristics: 3-state output capability required
Electrical Performance: Supply voltage range 4.5V ~ 5.5V and operating temperature -40°C ~ 85°C
Package Compatibility: 48-pin surface mount package (TFSOP or SSOP variants acceptable)
Base Product Number: 74FCT16245 or 74FCT162245 series

Substitute parts are grouped into two categories based on output current specifications:

Category A - Direct Current Match (32mA/64mA): 74FCT16245ATPAG (IDT), 74FCT16245ATPAG8 (Renesas), 74FCT16245ATPVG (IDT)

Category B - Reduced Current Output (24mA/24mA): 74FCT162245ATPACT (Texas Instruments), 74FCT162245ATPAG (Renesas), 74FCT162245ATPVCT (Cypress), 74FCT162245ATPVG (Renesas), 74FCT162245CTPACT (Texas Instruments), 74FCT162245CTPAG (IDT), 74FCT162245CTPAG8 (IDT)

Parameter Comparison

Part Number	Manufacturer	Product Status	Current Output (High/Low)	Package Type	Inventory
PI74FCT16245ATA	Diodes Incorporated	Obsolete	32mA / 64mA	48-TFSOP	1012 Pcs
74FCT16245ATPAG	IDT	Active	32mA / 64mA	48-TFSOP	6679 Pcs
74FCT16245ATPAG8	Renesas Electronics	Active	32mA / 64mA	48-TFSOP	6497 Pcs
74FCT16245ATPVG	IDT	Active	32mA / 64mA	48-BSSOP	1310 Pcs
74FCT162245ATPACT	Texas Instruments	Obsolete	24mA / 24mA	48-TFSOP	3200 Pcs
74FCT162245ATPAG	Renesas Electronics	Obsolete	24mA / 24mA	48-TFSOP	1114 Pcs
74FCT162245ATPVCT	Cypress Semiconductor	Active	24mA / 24mA	48-BSSOP	2060 Pcs
74FCT162245ATPVG	Renesas Electronics	Obsolete	24mA / 24mA	48-BSSOP	1214 Pcs
74FCT162245CTPACT	Texas Instruments	Obsolete	24mA / 24mA	48-TFSOP	873 Pcs
74FCT162245CTPAG	IDT	Active	24mA / 24mA	48-TFSOP	2527 Pcs
74FCT162245CTPAG8	IDT	Active	24mA / 24mA	48-TFSOP	2175 Pcs

Engineering Selection Recommendations

Primary Substitutes (Recommended for New Designs)

For applications requiring identical output current specifications (32mA/64mA), select from active-status parts: 74FCT16245ATPAG (IDT) or 74FCT16245ATPAG8 (Renesas). Both maintain the 48-TFSOP package and full electrical compatibility with the original PI74FCT16245ATA.

Secondary Substitutes (Reduced Current Output)

Parts in the 74FCT162245 series provide functional equivalence with reduced output current (24mA/24mA). Active-status alternatives include 74FCT162245CTPAG (IDT) and 74FCT162245CTPAG8 (IDT) in 48-TFSOP packaging, or 74FCT162245ATPVCT (Cypress) in 48-BSSOP packaging. These are suitable for applications where the lower output current meets system requirements.

Compliance Considerations

The 74FCT16245ATPAG8 (Renesas) carries RoHS3 compliance certification, making it preferable for applications subject to environmental regulations. The 74FCT162245CTPAG and 74FCT162245CTPAG8 (both IDT) also provide active product status with RoHS3 compliance in the reduced-current category.

Frequently Asked Questions (FAQ)

Q: Can I use a 74FCT162245 series part as a direct replacement for the PI74FCT16245ATA?

A: The 74FCT162245 series provides functional equivalence in logic configuration and package form, but with reduced output current (24mA/64mA versus 32mA/64mA). Substitution is valid only if your circuit design accommodates the lower output current specifications.

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

A: Both are 48-pin surface mount packages. The 48-TFSOP (Thin Shrink Small Outline Package) has a 0.240" width, while the 48-BSSOP (Broad Shrink Small Outline Package) has a 0.295" width. PCB layout and footprint compatibility must be verified before substitution.

Q: Are there active-status alternatives available?

A: Yes. For matching output current (32mA/64mA), the 74FCT16245ATPAG (IDT) and 74FCT16245ATPAG8 (Renesas) are both active products. For reduced-current applications, 74FCT162245CTPAG (IDT), 74FCT162245CTPAG8 (IDT), and 74FCT162245ATPVCT (Cypress) are active alternatives.

Q: Does product status affect substitution eligibility?

A: Product status does not affect electrical or functional compatibility. However, active-status parts offer better long-term availability and supply chain reliability compared to obsolete classifications.

Q: What certifications should I consider for regulated applications?

A: RoHS3 compliance is available on multiple substitute options including 74FCT16245ATPAG8 (Renesas) and all 74FCT162245 variants from IDT. REACH compliance is consistent across all listed alternatives.

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