PI74FCT16245CTAE Equivalent & Substitute Parts

Part Overview

The PI74FCT16245CTAE is a non-inverting transceiver logic IC manufactured by Diodes Incorporated, featuring 2 elements with 8 bits per element and 3-state output capability. This 48-TSSOP surface mount device operates across a 4.5V to 5.5V supply voltage range and is rated for -40°C to 85°C operating temperature. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

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)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the PI74FCT16245CTAE is determined by strict equivalence across the following critical parameters:

Logic type: Transceiver, Non-Inverting
Element and bit configuration: 2 elements, 8 bits per element
Output type: 3-State
Supply voltage range: 4.5V ~ 5.5V
Operating temperature range: -40°C ~ 85°C
Package type: 48-TFSOP or compatible package variants
RoHS and compliance status

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

Group 1 (Matching Output Current: 32mA High, 64mA Low): Direct functional equivalents with identical electrical performance characteristics.

Group 2 (Reduced Output Current: 24mA High, 24mA Low): Parts with lower output drive capability, suitable for applications not requiring maximum current delivery.

Parameter Comparison

Part Number	Manufacturer	Product Status	Output Current (High/Low)	Package / Case	Packaging Type	Inventory
PI74FCT16245CTAE	Diodes Incorporated	Obsolete	32mA, 64mA	48-TFSOP (0.240", 6.10mm)	-	1017 Pcs
74FCT16245CTPAG8	Renesas Electronics	Active	32mA, 64mA	48-TFSOP (0.240", 6.10mm)	Tape & Reel (TR)	3400 Pcs
CY74FCT16245CTPACT	Texas Instruments	Obsolete	32mA, 64mA	48-TFSOP (0.240", 6.10mm)	-	2100 Pcs
74FCT162245ATPACT	Texas Instruments	Obsolete	24mA, 24mA	48-TFSOP (0.240", 6.10mm)	Cut Tape (CT) & Digi-Reel®	3200 Pcs
74FCT162245ATPAG	Renesas Electronics	Obsolete	24mA, 24mA	48-TFSOP (0.240", 6.10mm)	Tube	1114 Pcs
74FCT162245ATPVCT	Cypress Semiconductor	Active	24mA, 24mA	48-BSSOP (0.295", 7.50mm)	Bulk	2060 Pcs
74FCT162245ATPVG	Renesas Electronics	Obsolete	24mA, 24mA	48-BSSOP (0.295", 7.50mm)	Tube	1214 Pcs
74FCT162245CTPACT	Texas Instruments	Obsolete	24mA, 24mA	48-TFSOP (0.240", 6.10mm)	Tape & Reel (TR)	873 Pcs
74FCT162245CTPAG	IDT, Integrated Device Technology	Active	24mA, 24mA	48-TFSOP (0.240", 6.10mm)	Bulk	2527 Pcs
74FCT162245CTPAG8	IDT, Integrated Device Technology	Active	24mA, 24mA	48-TFSOP (0.240", 6.10mm)	Bulk	2175 Pcs
74FCT16245ATPAG8	Renesas Electronics	Active	32mA, 64mA	48-TFSOP (0.240", 6.10mm)	Cut Tape (CT)	6497 Pcs

Engineering Selection Recommendations

For Direct Electrical Equivalence (32mA/64mA Output Current):

Select 74FCT16245CTPAG8 (Renesas Electronics, Active status) or 74FCT16245ATPAG8 (Renesas Electronics, Active status) when full output current capability is required. Both parts maintain identical electrical specifications to the PI74FCT16245CTAE and are currently in active production status, ensuring long-term availability and supply chain stability.

For Reduced Output Current Applications (24mA/24mA Output Current):

Select 74FCT162245CTPAG (IDT, Active status) or 74FCT162245CTPAG8 (IDT, Active status) when lower output drive is acceptable. These parts are actively manufactured and provide ROHS3 compliance with stable inventory levels.

Package Consideration:

Parts specified as 48-BSSOP (0.295", 7.50mm width) such as 74FCT162245ATPVCT and 74FCT162245ATPVG feature a wider package footprint compared to the standard 48-TFSOP (0.240", 6.10mm width). PCB layout modifications are required for these variants.

Compliance and Certification:

All recommended substitute parts maintain ROHS3 compliance and REACH unaffected status, consistent with the original PI74FCT16245CTAE specifications.

Frequently Asked Questions (FAQ)

Q: Can I use a 74FCT162245 series part as a direct replacement for the PI74FCT16245CTAE?

A: The 74FCT162245 series parts are functionally equivalent in logic type, element count, and bit configuration. However, output current specifications differ: 74FCT162245 variants deliver 24mA/24mA versus the original 32mA/64mA. Selection depends on your circuit's current requirements. If your design operates within 24mA/24mA limits, substitution is valid.

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

A: Both are 48-pin surface mount packages for the 74FCT series transceivers. The 48-TFSOP measures 0.240" (6.10mm) in width, while the 48-BSSOP measures 0.295" (7.50mm) in width. The wider BSSOP package requires PCB layout modifications and cannot be used as a direct footprint replacement for TFSOP designs.

Q: Why is the PI74FCT16245CTAE listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. Active substitute parts from Renesas Electronics and IDT ensure continued availability for new designs and ongoing production support.

Q: Are all substitute parts ROHS3 compliant?

A: All recommended substitute parts listed maintain ROHS3 compliance and REACH unaffected status, matching the environmental and regulatory requirements of the original PI74FCT16245CTAE.

Q: Which substitute part offers the best long-term availability?

A: 74FCT162245CTPAG and 74FCT162245CTPAG8 from IDT maintain active production status with substantial inventory levels (2527 and 2175 units respectively), providing optimal supply chain continuity.

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