74FCT162245ATA Equivalent & Substitute Parts

Part Overview

The PI74FCT162245ATA is a non-inverting transceiver logic IC manufactured by Diodes Incorporated, designed for 2-element, 8-bit per element configurations with 3-state output capability. Operating within a 4.5V to 5.5V supply range, this component is housed in a 48-TSSOP package and rated for -40°C to 85°C operating temperatures. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing system support and new designs.

Key Parameters

Parameter	Value
Manufacturer Part Number	PI74FCT162245ATA
Manufacturer	Diodes Incorporated
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)
Mounting Type	Surface Mount
Package / Case	48-TFSOP (0.240", 6.10mm Width)
Supplier Device Package	48-TSSOP
Base Product Number	74FCT162245
Product Status	Obsolete
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the PI74FCT162245ATA is determined by strict alignment of the following electrical and mechanical parameters:

Primary Substitution Criteria:

Logic Type: Transceiver, Non-Inverting
Number of Elements: 2
Number of Bits per Element: 8
Output Type: 3-State
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) or 48-BSSOP (0.295", 7.50mm Width)
Supplier Device Package: 48-TSSOP or 48-SSOP

Secondary Consideration:

Current - Output High, Low: 24mA, 24mA (primary specification) or 32mA, 64mA (higher current capability, backward compatible)

Substitute parts are grouped into two categories based on package type and current output specifications. Parts maintaining identical current ratings (24mA, 24mA) with 48-TFSOP packaging provide direct electrical equivalence. Parts with enhanced current output (32mA, 64mA) or alternative package geometries (48-BSSOP) remain functionally compatible within the defined electrical operating envelope.

Parameter Comparison

Part Number	Manufacturer	Logic Type	Elements	Bits/Element	Output Type	Current (H/L)	Voltage Supply	Temp Range	Package	Product Status	RoHS Status
PI74FCT162245ATA	Diodes Inc.	Non-Inverting	2	8	3-State	24mA, 24mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TFSOP	Obsolete	Non-compliant
74FCT162245ATPAG	Renesas Electronics	Non-Inverting	2	8	3-State	24mA, 24mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TFSOP	Obsolete	ROHS3 Compliant
74FCT162245ATPACT	Texas Instruments	Non-Inverting	2	8	3-State	24mA, 24mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TFSOP	Obsolete	ROHS3 Compliant
74FCT162245ATPVCT	Cypress Semiconductor	Non-Inverting	2	8	3-State	24mA, 24mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-BSSOP	Active	Not specified
74FCT162245ATPVG	Renesas Electronics	Non-Inverting	2	8	3-State	24mA, 24mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-BSSOP	Obsolete	ROHS3 Compliant
74FCT162245CTPACT	Texas Instruments	Non-Inverting	2	8	3-State	24mA, 24mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TFSOP	Obsolete	ROHS3 Compliant
74FCT162245CTPAG	IDT	Non-Inverting	2	8	3-State	24mA, 24mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TFSOP	Active	Not specified
74FCT162245CTPAG8	IDT	Non-Inverting	2	8	3-State	24mA, 24mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TFSOP	Active	Not specified
74FCT16245ATPAG	IDT	Non-Inverting	2	8	3-State	32mA, 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TFSOP	Active	Not specified
74FCT16245ATPAG8	Renesas Electronics	Non-Inverting	2	8	3-State	32mA, 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TFSOP	Active	ROHS3 Compliant
74FCT16245ATPVG	IDT	Non-Inverting	2	8	3-State	32mA, 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-BSSOP	Active	Not specified

Engineering Selection Recommendations

Direct Electrical Equivalents (24mA, 24mA Output Current):

For applications requiring identical electrical specifications with improved compliance status, the 74FCT162245ATPAG (Renesas Electronics) and 74FCT162245ATPACT (Texas Instruments) provide direct substitution in 48-TFSOP packaging. Both parts maintain the original 24mA output current specification and operate within the identical voltage and temperature envelope. These parts carry ROHS3 compliance, addressing regulatory requirements absent in the original PI74FCT162245ATA.

The 74FCT162245CTPAG and 74FCT162245CTPAG8 (both IDT) offer active product status, ensuring continued availability and manufacturing support. These parts maintain full electrical equivalence with the original specification.

Alternative Package Geometry (48-BSSOP):

The 74FCT162245ATPVCT (Cypress Semiconductor) provides active product status with identical electrical specifications but in a 48-BSSOP package (0.295", 7.50mm width versus 0.240", 6.10mm width). This substitution requires PCB layout modification to accommodate the wider package footprint.

Enhanced Current Capability (32mA, 64mA Output Current):

The 74FCT16245ATPAG (IDT) and 74FCT16245ATPAG8 (Renesas Electronics) provide higher output current capability (32mA high, 64mA low) while maintaining all other electrical parameters. These parts are backward compatible with the original specification and offer active product status. The 74FCT16245ATPAG8 includes ROHS3 compliance. The 74FCT16245ATPVG (IDT) offers the same enhanced current specification in 48-BSSOP packaging.

Frequently Asked Questions (FAQ)

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

A: Yes. Higher output current capability is backward compatible. The substitute part can deliver the required 24mA without performance degradation. The enhanced current capacity provides additional design margin for signal integrity.

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

A: Both are surface-mount packages with 48 pins. The 48-TFSOP has a width of 0.240" (6.10mm), while the 48-BSSOP has a width of 0.295" (7.50mm). Substitution between these packages requires PCB layout modification to accommodate the different footprint dimensions.

Q: Are all substitute parts RoHS compliant?

A: No. The original PI74FCT162245ATA is RoHS non-compliant. Several substitutes (74FCT162245ATPAG, 74FCT162245ATPACT, 74FCT16245ATPAG8) carry ROHS3 compliance. Others do not specify compliance status. Verify RoHS requirements for your application before selection.

Q: What is the difference between active and obsolete product status?

A: Active parts are in current production with guaranteed availability and manufacturing support. Obsolete parts are no longer manufactured; availability depends on remaining inventory. For new designs, prioritize active status parts: 74FCT162245ATPVCT, 74FCT162245CTPAG, 74FCT162245CTPAG8, 74FCT16245ATPAG, 74FCT16245ATPAG8, and 74FCT16245ATPVG.

Q: Can I substitute a 74FCT16245 series part for a 74FCT162245 series part?

A: Yes, with the noted difference in output current. The 74FCT16245 series (74FCT16245ATPAG, 74FCT16245ATPAG8, 74FCT16245ATPVG) provides 32mA, 64mA output current versus the original 24mA, 24mA. All other electrical and functional parameters remain equivalent.

Q: What packaging options are available for active products?

A: Active product substitutes are available in two package geometries: 48-TFSOP (0.240", 6.10mm width) and 48-BSSOP (0.295", 7.50mm width). The 48-TFSOP option provides direct footprint compatibility with the original PI74FCT162245ATA.

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