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74FCT162245CTPACT Equivalent & Substitute Parts
Part Overview
The 74FCT162245CTPACT is a non-inverting transceiver logic integrated circuit manufactured by Texas Instruments. This device functions as a 2-element, 8-bit per element transceiver with 3-state output capability, housed in a 48-TSSOP surface mount package. The part operates across a 4.5V to 5.5V supply voltage range and is rated for -40°C to 85°C operating temperature.
The 74FCT162245CTPACT carries an Obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for legacy systems utilizing this component.
Substiute Parts
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 | 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 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the 74FCT162245CTPACT is determined by the following critical parameters:
Functional Equivalence Parameters:
- Logic Type: Transceiver, Non-Inverting
- Number of Elements: 2
- Number of Bits per Element: 8
- Output Type: 3-State
- Operating Temperature Range: -40°C ~ 85°C (TA)
Electrical Compatibility Parameters:
- Voltage - Supply: 4.5V ~ 5.5V
- Current - Output High, Low: 24mA, 24mA
Physical Compatibility Parameters:
- Mounting Type: Surface Mount
- Package / Case: 48-TFSOP (0.240", 6.10mm Width)
- Supplier Device Package: 48-TSSOP
Compliance Parameters:
- RoHS Status: ROHS3 Compliant
- Moisture Sensitivity Level (MSL): 1 (Unlimited)
Substitute parts must match all functional equivalence parameters and physical compatibility parameters. Electrical parameters (current output and supply voltage) define the substitution category. Parts with identical electrical parameters are direct parametric equivalents. Parts with different electrical parameters (such as reduced output current or different supply voltage ranges) are classified as alternative solutions requiring design review.
Parameter Comparison
| Part Number | Manufacturer | Series | Product Status | Voltage - Supply | Current - Output High, Low | Operating Temperature | Package / Case | RoHS Status |
|---|---|---|---|---|---|---|---|---|
| 74FCT162245CTPACT | Texas Instruments | 74FCT | Obsolete | 4.5V ~ 5.5V | 24mA, 24mA | -40°C ~ 85°C | 48-TFSOP | ROHS3 Compliant |
| SN74LVCR162245DGGR | Texas Instruments | 74LVCR | Active | 2.7V ~ 3.6V | 12mA, 12mA | -40°C ~ 85°C | 48-TFSOP | ROHS3 Compliant |
| 74ACT16245DGGR | Texas Instruments | 74ACT | Active | 4.5V ~ 5.5V | 24mA, 24mA | -40°C ~ 85°C | 48-TFSOP | ROHS3 Compliant |
| 74FCT162245ATPACT | Texas Instruments | 74FCT | Obsolete | 4.5V ~ 5.5V | 24mA, 24mA | -40°C ~ 85°C | 48-TFSOP | ROHS3 Compliant |
| 74FCT162H245ATPACT | Texas Instruments | 74FCT | Obsolete | 4.5V ~ 5.5V | 24mA, 24mA | -40°C ~ 85°C | 48-TFSOP | ROHS3 Compliant |
| 74FCT162H245CTPACT | Texas Instruments | 74FCT | Obsolete | 4.5V ~ 5.5V | 24mA, 24mA | -40°C ~ 85°C | 48-TFSOP | ROHS3 Compliant |
| CY74FCT162245TPACT | Texas Instruments | 74FCT | Obsolete | 4.5V ~ 5.5V | 24mA, 24mA | -40°C ~ 85°C | 48-TFSOP | ROHS3 Compliant |
| 74FCT162245ATPAG | Renesas Electronics Corporation | 74FCT | Obsolete | 4.5V ~ 5.5V | 24mA, 24mA | -40°C ~ 85°C | 48-TFSOP | ROHS3 Compliant |
| 74FCT162245CTPAG | IDT, Integrated Device Technology Inc | 74FCT | Active | 4.5V ~ 5.5V | 24mA, 24mA | -40°C ~ 85°C | 48-TFSOP | ROHS3 Compliant |
| 74FCT16245ATPAG | IDT, Integrated Device Technology Inc | 74FCT | Active | 4.5V ~ 5.5V | 32mA, 64mA | -40°C ~ 85°C | 48-TFSOP | Not specified |
| 74FCT16245ATPAG8 | Renesas Electronics Corporation | 74FCT | Active | 4.5V ~ 5.5V | 32mA, 64mA | -40°C ~ 85°C | 48-TFSOP | ROHS3 Compliant |
Engineering Selection Recommendations
Direct Parametric Equivalents (Identical Electrical and Physical Specifications):
The following parts are direct parametric equivalents to the 74FCT162245CTPACT, matching all critical electrical parameters (4.5V ~ 5.5V supply, 24mA output current) and physical specifications:
- 74ACT16245DGGR (Texas Instruments, 74ACT series, Active status): Provides identical electrical performance with active product status, ensuring long-term availability and manufacturing support.
- 74FCT162245CTPAG (IDT, Integrated Device Technology Inc, Active status): Maintains 74FCT series compatibility with active product status, supporting continued supply chain access.
- 74FCT162245ATPAG (Renesas Electronics Corporation, Obsolete status): Functionally equivalent within the 74FCT series but carries obsolete status.
- 74FCT162245ATPACT (Texas Instruments, Obsolete status): Functionally equivalent within the 74FCT series but carries obsolete status.
- 74FCT162H245ATPACT (Texas Instruments, Obsolete status): Functionally equivalent within the 74FCT series but carries obsolete status.
- 74FCT162H245CTPACT (Texas Instruments, Obsolete status): Functionally equivalent within the 74FCT series but carries obsolete status.
- CY74FCT162245TPACT (Texas Instruments, Obsolete status): Functionally equivalent within the 74FCT series but carries obsolete status.
Alternative Solutions (Different Electrical Specifications):
-
SN74LVCR162245DGGR (Texas Instruments, 74LVCR series, Active status): Operates at reduced supply voltage (2.7V ~ 3.6V) with reduced output current (12mA, 12mA). This part is suitable only for applications where the lower voltage and current specifications are compatible with system requirements.
-
74FCT16245ATPAG (IDT, Active status): Provides higher output current (32mA, 64mA) compared to the original specification. This part is suitable for applications requiring enhanced drive capability.
-
74FCT16245ATPAG8 (Renesas Electronics Corporation, Active status): Provides higher output current (32mA, 64mA) compared to the original specification. This part is suitable for applications requiring enhanced drive capability.
All recommended substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with modern manufacturing and environmental standards.
Frequently Asked Questions (FAQ)
Q: Can the SN74LVCR162245DGGR be used as a direct replacement for the 74FCT162245CTPACT?
A: The SN74LVCR162245DGGR is not a direct replacement. While it maintains the same logic type, element count, bit configuration, and package, it operates at a different supply voltage range (2.7V ~ 3.6V versus 4.5V ~ 5.5V) and provides reduced output current (12mA, 12mA versus 24mA, 24mA). Substitution is only valid if the application circuit operates at the lower voltage and current requirements are satisfied.
Q: What is the difference between 74FCT162245CTPAG and 74FCT162245CTPACT?
A: Both parts are functionally identical in electrical and logical specifications. The primary difference is the packaging designation: CTPAG indicates a specific packaging format from IDT, while CTPACT indicates the Texas Instruments packaging format. Both maintain the same 48-TSSOP physical package and electrical performance.
Q: Why are there multiple obsolete parts listed as equivalents?
A: Multiple obsolete variants exist within the 74FCT series due to historical manufacturing by different suppliers and packaging variations. These parts are functionally equivalent but carry obsolete status. For new designs or long-term production, active status parts such as 74ACT16245DGGR or 74FCT162245CTPAG are recommended.
Q: Can 74FCT16245ATPAG or 74FCT16245ATPAG8 be used in place of 74FCT162245CTPACT?
A: These parts provide higher output current capability (32mA, 64mA versus 24mA, 24mA) and maintain the same supply voltage range and package specifications. They are functionally compatible and can be used as substitutes when higher drive current is acceptable or beneficial to the application. Both parts carry active product status.
Q: Are all substitute parts ROHS3 compliant?
A: All listed substitute parts are ROHS3 compliant except 74FCT16245ATPAG, for which RoHS status is not specified in the provided data. Compliance verification is required before selection for applications with RoHS requirements.
Q: What is the significance of the 48-TFSOP package specification?
A: The 48-TFSOP package is a thin fine-pitch shrink small outline package with 0.240" width and 6.10mm overall width. All substitute parts maintain this identical package specification, ensuring mechanical and electrical compatibility with existing PCB layouts and socket designs.
Q: Which substitute part offers the best long-term availability?
A: The 74ACT16245DGGR (Texas Instruments, 74ACT series) and 74FCT162245CTPAG (IDT) both carry active product status, indicating ongoing manufacturing and supply chain support. These parts are recommended for applications requiring extended component availability.
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