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74FCT162245ATPVCT Equivalent & Substitute Parts
Part Overview
The 74FCT162245ATPVCT is a non-inverting transceiver logic IC manufactured by Texas Instruments, featuring 2 elements with 8 bits per element and 3-state output capability in a 48-SSOP package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.
The 74FCT162245ATPVCT operates at 4.5V to 5.5V supply voltage with output drive capability of 24mA high and 24mA low across an operating temperature range of -40°C to 85°C. The part is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 74FCT162245ATPVCT |
| Manufacturer | Texas Instruments |
| 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) |
| Package / Case | 48-BSSOP (0.295", 7.50mm Width) |
| Product Status | Obsolete |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution for the 74FCT162245ATPVCT is determined by the following critical parameters:
Functional Equivalence Requirements:
- Logic type: Transceiver, Non-Inverting
- Number of elements: 2
- Number of bits per element: 8
- Output type: 3-State
- Package type: 48-SSOP or 48-TSSOP (mechanically compatible)
Electrical Compatibility Requirements:
- Voltage supply range: 4.5V ~ 5.5V (exact match required for direct substitution)
- Output current drive: 24mA high and 24mA low (minimum requirement)
- Operating temperature: -40°C ~ 85°C
Compliance Requirements:
- RoHS3 compliance
- MSL rating: 1 (Unlimited)
Substitute parts are grouped into two categories: manufacturer-recommended substitutes (active product status preferred) and parametric equivalents (matching electrical and functional specifications). Parts with different output current ratings or voltage ranges are listed as parametric equivalents with noted differences.
Parameter Comparison
| Part Number | Manufacturer | Series | Voltage Supply | Output Current (H/L) | Package | Product Status | Inventory |
|---|---|---|---|---|---|---|---|
| 74FCT162245ATPVCT | Texas Instruments | 74FCT | 4.5V ~ 5.5V | 24mA, 24mA | 48-BSSOP | Obsolete | 2060 Pcs |
| SN74LVCR162245DLR | Texas Instruments | 74LVCR | 2.7V ~ 3.6V | 12mA, 12mA | 48-BSSOP | Active | 1900 Pcs |
| 74ACT16245DLR | Texas Instruments | 74ACT | 4.5V ~ 5.5V | 24mA, 24mA | 48-BSSOP | Active | 4302 Pcs |
| 74ACT16623DLR | Texas Instruments | 74ACT | 4.5V ~ 5.5V | 24mA, 24mA | 48-BSSOP | Obsolete | 663 Pcs |
| CY74FCT162245TPVCT | Cypress Semiconductor Corp | 74FCT | 4.5V ~ 5.5V | 24mA, 24mA | 48-BSSOP | Active | 7645 Pcs |
| 74FCT162245ATPAG | Renesas Electronics Corporation | 74FCT | 4.5V ~ 5.5V | 24mA, 24mA | 48-TSSOP | Obsolete | 1114 Pcs |
| 74FCT162245ATPVG | Renesas Electronics Corporation | 74FCT | 4.5V ~ 5.5V | 24mA, 24mA | 48-BSSOP | Obsolete | 1214 Pcs |
| 74FCT162245CTPAG | IDT, Integrated Device Technology Inc | 74FCT | 4.5V ~ 5.5V | 24mA, 24mA | 48-TSSOP | Active | 2527 Pcs |
| 74FCT162245CTPAG8 | IDT, Integrated Device Technology Inc | 74FCT | 4.5V ~ 5.5V | 24mA, 24mA | 48-TSSOP | Active | 2175 Pcs |
| 74FCT16245ATPAG | IDT, Integrated Device Technology Inc | 74FCT | 4.5V ~ 5.5V | 32mA, 64mA | 48-TSSOP | Active | 6679 Pcs |
| 74FCT16245ATPAG8 | Renesas Electronics Corporation | 74FCT | 4.5V ~ 5.5V | 32mA, 64mA | 48-TSSOP | Active | 6497 Pcs |
Engineering Selection Recommendations
Primary Recommendation - Direct Electrical & Functional Match:
The 74ACT16245DLR (Texas Instruments, Active status) provides the closest match with identical voltage supply range (4.5V ~ 5.5V), output current specifications (24mA high/low), and 48-BSSOP package. This part is currently in active production with 4302 units in stock, ensuring long-term availability and supply chain stability.
The CY74FCT162245TPVCT (Cypress Semiconductor Corp, Active status) offers equivalent electrical and functional specifications with the same 74FCT series characteristics and 48-BSSOP package. With 7645 units in inventory, this part provides the highest stock availability among direct equivalents.
Alternative with Package Variation:
The 74FCT162245CTPAG and 74FCT162245CTPAG8 (IDT, Active status) maintain identical electrical specifications but use the 48-TSSOP package (0.240" width versus 0.295" width). These parts are suitable for designs where the narrower package footprint is acceptable or preferred. Both are in active production with 2527 and 2175 units respectively.
Not Recommended for Direct Substitution:
The SN74LVCR162245DLR operates at a different voltage range (2.7V ~ 3.6V) and reduced output current (12mA), making it unsuitable for direct replacement in 5V systems. This part is appropriate only for low-voltage applications requiring redesign consideration.
The 74FCT16245ATPAG and 74FCT16245ATPAG8 feature higher output current ratings (32mA high, 64mA low) and represent a different base product number (74FCT16245 versus 74FCT162245), indicating functional differences beyond simple substitution.
Frequently Asked Questions (FAQ)
Q: Can the SN74LVCR162245DLR replace the 74FCT162245ATPVCT directly?
A: No. The SN74LVCR162245DLR operates at 2.7V to 3.6V supply voltage, while the 74FCT162245ATPVCT requires 4.5V to 5.5V. Direct substitution would result in circuit malfunction. This part is suitable only for low-voltage system designs requiring complete redesign validation.
Q: Are 48-BSSOP and 48-TSSOP packages interchangeable?
A: Both packages are 48-pin SSOP variants with identical pin assignments and electrical compatibility. The primary difference is physical width: 48-BSSOP is 0.295" wide while 48-TSSOP is 0.240" wide. PCB layout and footprint design determine package compatibility. Verify footprint specifications before substitution.
Q: What is the difference between 74FCT162245 and 74FCT16245 base product numbers?
A: These represent different product variants. The 74FCT162245 maintains 24mA output current specifications, while 74FCT16245 provides higher output current (32mA high, 64mA low). Selection depends on circuit current requirements. Verify design specifications before substitution.
Q: Why is the 74FCT162245ATPVCT marked as obsolete?
A: Obsolete status indicates the manufacturer has discontinued production. Active alternatives such as 74ACT16245DLR and CY74FCT162245TPVCT provide equivalent functionality with ongoing manufacturing support and supply availability.
Q: Are all substitute parts ROHS3 compliant?
A: The primary substitute parts listed (74ACT16245DLR, CY74FCT162245TPVCT, 74FCT162245CTPAG, 74FCT162245CTPAG8) are ROHS3 compliant. Verify compliance documentation for specific procurement requirements.
Q: What inventory considerations apply to substitute selection?
A: CY74FCT162245TPVCT offers the highest stock availability (7645 units), followed by 74ACT16245DLR (4302 units). For long-term production requirements, active status parts ensure continued supply. Obsolete parts have limited remaining inventory and should not be selected for new designs.
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