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PI74FCT16244ATVE Equivalent & Substitute Parts
Part Overview
The PI74FCT16244ATVE is a 16-bit non-inverting buffer logic IC manufactured by Diodes Incorporated, designed for 3-state output applications in 48-SSOP surface mount packaging. This component operates across a 4.5V to 5.5V supply range with an operating temperature range of -40°C to 85°C. The part is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | PI74FCT16244ATVE |
| Manufacturer | Diodes Incorporated |
| Logic Type | Buffer, Non-Inverting |
| Number of Elements | 4 |
| Number of Bits per Element | 4 |
| 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) |
| Supplier Device Package | 48-SSOP |
| Base Product Number | 74FCT16244 |
| Product Status | Obsolete |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution for the PI74FCT16244ATVE is determined by strict alignment of the following electrical and mechanical parameters:
Critical Substitution Parameters:
- Logic Type: Buffer, Non-Inverting
- Number of Elements: 4
- Number of Bits per Element: 4
- Output Type: 3-State
- Voltage - Supply: 4.5V ~ 5.5V
- Operating Temperature: -40°C ~ 85°C (TA)
- Mounting Type: Surface Mount
- Base Product Number: 74FCT16244 or 74FCT162244 series
Package Compatibility Considerations: Substitute parts are grouped into two package categories: 48-BSSOP (0.295", 7.50mm Width) and 48-TFSOP (0.240", 6.10mm Width). Both packages are surface mount compatible and mechanically interchangeable in most applications, though PCB layout and footprint design must accommodate the specific package width.
Output Current Variations: The main part specifies 32mA (High) and 64mA (Low) output current. Substitute parts with 24mA (High) and 24mA (Low) output current represent reduced drive capability and must be evaluated for application-specific load requirements.
Parameter Comparison
| Part Number | Manufacturer | Logic Type | Output Current (H/L) | Package / Case | Product Status | Inventory |
|---|---|---|---|---|---|---|
| PI74FCT16244ATVE | Diodes Incorporated | Buffer, Non-Inverting | 32mA, 64mA | 48-BSSOP (0.295", 7.50mm) | Obsolete | 1056 Pcs |
| CY74FCT16244ATPVCT | Texas Instruments | Buffer, Non-Inverting | 32mA, 64mA | 48-BSSOP (0.295", 7.50mm) | Discontinued at DiGi Electronics | 710 Pcs |
| 74FCT162244ATPACT | Cypress Semiconductor Corp | Buffer, Non-Inverting | 24mA, 24mA | 48-TFSOP (0.240", 6.10mm) | Active | 3100 Pcs |
| 74FCT162244ATPVCT | Texas Instruments | Buffer, Non-Inverting | 24mA, 24mA | 48-BSSOP (0.295", 7.50mm) | Obsolete | 995 Pcs |
| 74FCT162244ATPVG | IDT, Integrated Device Technology Inc | Buffer, Non-Inverting | 24mA, 24mA | 48-BSSOP (0.295", 7.50mm) | Active | 4078 Pcs |
| 74FCT162244ATPVG8 | Renesas Electronics Corporation | Buffer, Non-Inverting | 24mA, 24mA | 48-BSSOP (0.295", 7.50mm) | Active | 1140 Pcs |
| 74FCT162244CTPACT | Cypress Semiconductor Corp | Buffer, Non-Inverting | 24mA, 24mA | 48-TFSOP (0.240", 6.10mm) | Active | 22385 Pcs |
| 74FCT162244CTPVCT | Cypress Semiconductor Corp | Buffer, Non-Inverting | 24mA, 24mA | 48-BSSOP (0.295", 7.50mm) | Active | 2200 Pcs |
| 74FCT162244CTPVG | IDT, Integrated Device Technology Inc | Buffer, Non-Inverting | 24mA, 24mA | 48-BSSOP (0.295", 7.50mm) | Active | 1661 Pcs |
| 74FCT16244CTPAG8 | Renesas Electronics Corporation | Buffer, Non-Inverting | 32mA, 64mA | 48-TFSOP (0.240", 6.10mm) | Obsolete | 1103 Pcs |
| 74FCT162H244CTPVC | Texas Instruments | Buffer, Non-Inverting | 24mA, 24mA | 48-BSSOP (0.295", 7.50mm) | Obsolete | 2060 Pcs |
Engineering Selection Recommendations
For Direct Replacement (Matching Output Current): The CY74FCT16244ATPVCT (Texas Instruments) and 74FCT16244CTPAG8 (Renesas Electronics Corporation) maintain the original 32mA/64mA output current specification. CY74FCT16244ATPVCT is available in the matching 48-BSSOP package, while 74FCT16244CTPAG8 uses the 48-TFSOP package variant. Both are ROHS3 compliant with MSL 1 rating.
For Active Product Status: The 74FCT162244ATPVG (IDT), 74FCT162244ATPVG8 (Renesas), 74FCT162244CTPACT (Cypress), 74FCT162244CTPVCT (Cypress), and 74FCT162244CTPVG (IDT) are all currently active products. These parts operate with reduced output current (24mA/24mA) compared to the original specification. The 74FCT162244CTPACT and 74FCT162244ATPACT (Cypress) offer the highest inventory availability at 22,385 and 3,100 units respectively.
Package Selection: Applications requiring the original 48-BSSOP (0.295", 7.50mm Width) footprint should prioritize 74FCT162244ATPVG, 74FCT162244ATPVG8, 74FCT162244CTPVCT, or 74FCT162244CTPVG. Applications that can accommodate the narrower 48-TFSOP (0.240", 6.10mm Width) package should consider 74FCT162244ATPACT or 74FCT162244CTPACT for superior inventory availability.
Compliance Considerations: All substitute parts maintain ROHS3 compliance and REACH unaffected status. Moisture sensitivity levels vary between MSL 1 (unlimited) and MSL 3 (168 hours), with MSL 1 parts preferred for extended storage or humid environments.
Frequently Asked Questions (FAQ)
Q: Can I use a substitute part with 24mA/24mA output current instead of the original 32mA/64mA specification?
A: Output current substitution depends on application load requirements. The 24mA/24mA variants have reduced drive capability and must be evaluated against your specific circuit load impedance and timing margins. Direct replacement is not guaranteed without circuit analysis.
Q: What is the difference between 48-BSSOP and 48-TFSOP packages?
A: Both are 48-pin surface mount packages with different body widths. The 48-BSSOP measures 0.295" (7.50mm) wide, while the 48-TFSOP measures 0.240" (6.10mm) wide. PCB footprints and land patterns differ between these packages. Verify your PCB design accommodates the selected package before substitution.
Q: Are obsolete product status parts suitable for new designs?
A: Obsolete parts have reached end-of-life and are no longer manufactured. For new designs, active product status parts such as 74FCT162244ATPVG, 74FCT162244ATPVG8, 74FCT162244CTPACT, 74FCT162244CTPVCT, and 74FCT162244CTPVG are recommended to ensure long-term supply chain availability and manufacturing support.
Q: What does MSL 1 (Unlimited) versus MSL 3 (168 Hours) mean for component handling?
A: Moisture Sensitivity Level (MSL) indicates the maximum time a component can be exposed to ambient humidity before soldering. MSL 1 parts have unlimited shelf life under standard conditions, while MSL 3 parts must be soldered within 168 hours of package opening. MSL 1 parts are preferred for inventory management and extended storage scenarios.
Q: Which substitute part offers the best inventory availability?
A: The 74FCT162244CTPACT (Cypress Semiconductor Corp) in 48-TFSOP package offers the highest inventory at 22,385 units. If 48-BSSOP package compatibility is required, the 74FCT162244ATPVG (IDT) provides 4,078 units in stock.
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