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PI74FCT16245CTVE Equivalent & Substitute Parts
Part Overview
The PI74FCT16245CTVE is a 16-bit non-inverting transceiver logic IC manufactured by Diodes Incorporated in a 48-SSOP package. This component features 2 elements with 8 bits per element, 3-state output capability, and operates across a 4.5V to 5.5V supply voltage range. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity.
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 | 32mA, 64mA |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 48-BSSOP (0.295", 7.50mm Width) |
| Series | 74FCT |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the PI74FCT16245CTVE are grouped based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:
- Logic Type: Transceiver, Non-Inverting (must match)
- Number of Elements: 2 (must match)
- Number of Bits per Element: 8 (must match)
- Output Type: 3-State (must match)
- Voltage - Supply: 4.5V ~ 5.5V (must match)
- Operating Temperature: -40°C ~ 85°C (must match)
- Mounting Type: Surface Mount (must match)
- Series: 74FCT (must match)
Substitutes are divided into two categories based on output current specifications and package form factor:
Category A - Direct Pin/Electrical Equivalents (32mA/64mA output current, 48-BSSOP package): These parts maintain identical output current ratings and the same 48-BSSOP package footprint as the main part.
Category B - Functional Equivalents with Modified Output Current (24mA/24mA output current, 48-TSSOP or 48-BSSOP packages): These parts provide equivalent functionality but with reduced output current specifications and may use alternative package form factors (48-TSSOP vs 48-BSSOP). These require design verification for current-limited applications.
Parameter Comparison
| Part Number | Manufacturer | Output Current (High/Low) | Package / Case | Product Status | Packaging Type | Inventory |
|---|---|---|---|---|---|---|
| PI74FCT16245CTVE | Diodes Incorporated | 32mA, 64mA | 48-BSSOP (0.295", 7.50mm) | Obsolete | Bulk | 1144 Pcs |
| 74FCT16245CTPVG8 | IDT | 32mA, 64mA | 48-BSSOP (0.295", 7.50mm) | Active | Bulk | 1402 Pcs |
| CY74FCT16245CTPVCT | Texas Instruments | 32mA, 64mA | 48-BSSOP (0.295", 7.50mm) | Obsolete | Tape & Reel (TR) | 2000 Pcs |
| 74FCT162245ATPACT | Texas Instruments | 24mA, 24mA | 48-TFSOP (0.240", 6.10mm) | Obsolete | Cut Tape (CT) & Digi-Reel | 3200 Pcs |
| 74FCT162245ATPAG | Renesas Electronics | 24mA, 24mA | 48-TFSOP (0.240", 6.10mm) | Obsolete | Tube | 1114 Pcs |
| 74FCT162245ATPVCT | Cypress Semiconductor | 24mA, 24mA | 48-BSSOP (0.295", 7.50mm) | Active | Bulk | 2060 Pcs |
| 74FCT162245ATPVG | Renesas Electronics | 24mA, 24mA | 48-BSSOP (0.295", 7.50mm) | Obsolete | Tube | 1214 Pcs |
| 74FCT162245CTPACT | Texas Instruments | 24mA, 24mA | 48-TFSOP (0.240", 6.10mm) | Obsolete | Tape & Reel (TR) | 873 Pcs |
| 74FCT162245CTPAG | IDT | 24mA, 24mA | 48-TFSOP (0.240", 6.10mm) | Active | Bulk | 2527 Pcs |
| 74FCT162245CTPAG8 | IDT | 24mA, 24mA | 48-TFSOP (0.240", 6.10mm) | Active | Bulk | 2175 Pcs |
| 74FCT16245ATPAG | IDT | 32mA, 64mA | 48-TFSOP (0.240", 6.10mm) | Active | Bulk | 6679 Pcs |
Engineering Selection Recommendations
For Direct Replacement (No Design Modification Required):
The 74FCT16245CTPVG8 (IDT, Active status) is the primary direct substitute. It maintains identical output current specifications (32mA/64mA) and 48-BSSOP package footprint. Active product status ensures long-term availability and supply chain stability.
For Applications Tolerant of Reduced Output Current:
Parts with 24mA/24mA output current ratings (74FCT162245 series) are functionally equivalent but require design verification for current-limited applications. Among these, the 74FCT162245CTPAG (IDT, Active status) and 74FCT162245ATPVCT (Cypress Semiconductor, Active status) offer the best long-term procurement viability due to active product status.
For Package Form Factor Flexibility:
The 74FCT16245ATPAG (IDT, Active status) provides 32mA/64mA output current with a 48-TFSOP package (0.240" width vs. 0.295" for BSSOP). This option is suitable for space-constrained designs where the narrower package footprint is beneficial.
Compliance Considerations:
All listed substitutes maintain ROHS3 compliance and EAR99 export classification consistent with the original part. Moisture Sensitivity Level (MSL) varies between 1 (Unlimited) and 3 (168 Hours); verify MSL requirements for your specific assembly and storage conditions.
Frequently Asked Questions (FAQ)
Q: Can I use a 74FCT162245 series part as a direct replacement for the PI74FCT16245CTVE?
A: The 74FCT162245 series parts are functionally equivalent but feature reduced output current (24mA/24mA vs. 32mA/64mA). Direct substitution is possible only if your circuit design does not require the higher output current specifications of the original part. Verify load impedance and current requirements before substitution.
Q: What is the difference between 48-BSSOP and 48-TSSOP packages?
A: Both are 48-pin surface mount packages. The 48-BSSOP (Shrink Small Outline Package) has a body width of 0.295" (7.50mm), while the 48-TSSOP (Thin Shrink Small Outline Package) has a body width of 0.240" (6.10mm). The TSSOP is narrower and suitable for space-constrained PCB layouts. Pin pitch and electrical characteristics remain compatible.
Q: Are all substitute parts ROHS3 compliant?
A: All listed substitute parts maintain ROHS3 compliance. Verify specific compliance documentation with your supplier for your intended application and regional requirements.
Q: What does MSL 1 (Unlimited) vs. MSL 3 (168 Hours) mean for my assembly process?
A: Moisture Sensitivity Level (MSL) indicates the maximum time a component can be exposed to ambient conditions (typically 30°C/60% RH) before soldering. MSL 1 (Unlimited) allows indefinite storage without special handling. MSL 3 (168 Hours) requires the component to be soldered within 168 hours of package opening or requires baking to restore moisture absorption capacity. Verify your assembly process requirements and storage conditions.
Q: Which substitute offers the best long-term availability?
A: Parts with Active product status offer the best long-term procurement viability. The 74FCT16245CTPVG8 (IDT, Active) is recommended for direct replacement. For reduced-current applications, the 74FCT162245CTPAG (IDT, Active) and 74FCT162245ATPVCT (Cypress Semiconductor, Active) are preferred options.
Q: Can I mix different manufacturers' parts in the same design?
A: Yes. All listed substitutes meet identical electrical and functional specifications for the 74FCT series transceiver logic. Different manufacturers' parts are interchangeable provided they maintain the same output current rating and package footprint for your specific application requirements.
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