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PI74LPT16245AV Equivalent & Substitute Parts
Part Overview
The PI74LPT16245AV is a non-inverting transceiver logic IC manufactured by Diodes Incorporated, featuring 2 elements with 8 bits per element and 3-state output capability. Designed for 3.6V operation in a 48-SSOP package, this component is classified as obsolete. Due to its obsolete status and limited inventory availability (936 pcs), identifying functionally equivalent substitute parts is necessary for ongoing design support and production continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | PI74LPT16245AV |
| 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 | 2.7V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 48-BSSOP (0.295", 7.50mm Width) |
| Product Status | Obsolete |
| RoHS Status | RoHS non-compliant |
Substitute Part Grouping Explanation
Substitute parts for the PI74LPT16245AV are qualified based on the following critical parameters:
- Logic Type: Transceiver, Non-Inverting (identical function)
- Number of Elements: 2 (identical configuration)
- Number of Bits per Element: 8 (identical bit width)
- Output Type: 3-State (identical output capability)
- Current - Output High, Low: 24mA, 24mA (identical drive capability)
- Voltage - Supply: Compatible range (minimum 2.7V, maximum 3.6V)
- Operating Temperature: -40°C ~ 85°C minimum (identical or extended range)
- Mounting Type: Surface Mount (identical)
- Package / Case: 48-BSSOP or 48-TFSOP (both 48-pin packages, mechanically compatible)
Substitutes are grouped into two package variants: 48-BSSOP (original package) and 48-TFSOP (smaller footprint alternative). All qualified substitutes maintain identical electrical specifications for transceiver operation, output drive current, and supply voltage compatibility.
Parameter Comparison
| Part Number | Manufacturer | Logic Type | Elements / Bits | Output Type | Current (mA) | Voltage Supply | Temp Range | Package | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|---|
| PI74LPT16245AV | Diodes Inc. | Non-Inverting | 2 / 8 | 3-State | 24, 24 | 2.7V ~ 3.6V | -40°C ~ 85°C | 48-BSSOP | Obsolete | Non-compliant |
| 74LCX16245MTD | onsemi | Non-Inverting | 2 / 8 | 3-State | 24, 24 | 2V ~ 3.6V | -40°C ~ 85°C | 48-TSSOP | Last Time Buy | ROHS3 Compliant |
| 74LCX16245MTDX | onsemi | Non-Inverting | 2 / 8 | 3-State | 24, 24 | 2V ~ 3.6V | -40°C ~ 85°C | 48-TSSOP | Active | ROHS3 Compliant |
| 74LVC16245APAG | Renesas | Non-Inverting | 2 / 8 | 3-State | 24, 24 | 2.7V ~ 3.6V | -40°C ~ 85°C | 48-TSSOP | Active | ROHS3 Compliant |
| 74LVC16245APAG8 | Renesas | Non-Inverting | 2 / 8 | 3-State | 24, 24 | 2.7V ~ 3.6V | -40°C ~ 85°C | 48-TSSOP | Active | ROHS3 Compliant |
| 74LVC16245APVG | Renesas | Non-Inverting | 2 / 8 | 3-State | 24, 24 | 2.7V ~ 3.6V | -40°C ~ 85°C | 48-BSSOP | Last Time Buy | ROHS3 Compliant |
| 74LVC16245APVG8 | Renesas | Non-Inverting | 2 / 8 | 3-State | 24, 24 | 2.7V ~ 3.6V | -40°C ~ 85°C | 48-BSSOP | Active | ROHS3 Compliant |
| 74LVCH16245APAG | Renesas | Non-Inverting | 2 / 8 | 3-State | 24, 24 | 2.7V ~ 3.6V | -40°C ~ 85°C | 48-TSSOP | Active | ROHS3 Compliant |
| 74LVCH16245APAG8 | Renesas | Non-Inverting | 2 / 8 | 3-State | 24, 24 | 2.7V ~ 3.6V | -40°C ~ 85°C | 48-TSSOP | Active | ROHS3 Compliant |
| SN74LVC16245ADGG | Texas Instruments | Non-Inverting | 2 / 8 | 3-State | 24, 24 | 1.65V ~ 3.6V | -40°C ~ 125°C | 48-TSSOP | Active | ROHS3 Compliant |
| SN74LVC16245ADGGR | Texas Instruments | Non-Inverting | 2 / 8 | 3-State | 24, 24 | 1.65V ~ 3.6V | -40°C ~ 125°C | 48-TSSOP | Active | ROHS3 Compliant |
Engineering Selection Recommendations
For replacement of the obsolete PI74LPT16245AV, the following selection criteria apply:
Package Compatibility: The original 48-BSSOP package is maintained by 74LVC16245APVG and 74LVC16245APVG8 (Renesas). These provide direct PCB layout compatibility without redesign. The 48-TSSOP package variants offer a smaller footprint alternative if board space optimization is acceptable.
Product Status and Availability: Active status parts ensure long-term availability and production continuity. SN74LVC16245ADGGR (Texas Instruments) and 74LCX16245MTDX (onsemi) are designated as active products with substantial inventory. Renesas 74LVC and 74LVCH series parts are also active with confirmed stock levels.
Compliance Requirements: All substitute parts listed are ROHS3 compliant, addressing modern regulatory requirements. The original PI74LPT16245AV is RoHS non-compliant, making compliant substitutes necessary for new designs and updated production runs.
Extended Operating Range: SN74LVC16245ADGG and SN74LVC16245ADGGR (Texas Instruments) provide extended temperature range (-40°C ~ 125°C) and lower minimum supply voltage (1.65V), offering enhanced performance margins in demanding applications.
Frequently Asked Questions (FAQ)
Q: Can I use a 48-TSSOP package substitute in place of the original 48-BSSOP package?
A: No direct PCB substitution is possible without layout modification. Both packages are 48-pin configurations but have different physical dimensions and pin spacing. The 48-TSSOP (0.240" width) is narrower than 48-BSSOP (0.295" width). PCB footprint redesign is required for package conversion.
Q: What is the difference between 74LVC16245APAG and 74LVC16245APAG8?
A: Both parts are electrically identical non-inverting transceivers with 2 elements and 8 bits per element. The primary difference is packaging: 74LVC16245APAG is supplied in Tube packaging, while 74LVC16245APAG8 is supplied in Tape & Reel (TR) format. Selection depends on assembly process requirements and quantity needs.
Q: Are Texas Instruments SN74LVC16245ADGG variants fully compatible with the PI74LPT16245AV?
A: Electrical compatibility is confirmed for all specified parameters: 2-element, 8-bit non-inverting transceiver with 3-state output, 24mA drive current, and 3.6V maximum supply voltage. The Texas Instruments parts offer extended operating temperature range (-40°C ~ 125°C versus -40°C ~ 85°C) and lower minimum supply voltage (1.65V versus 2.7V), making them functionally superior. Package conversion from 48-BSSOP to 48-TSSOP is required.
Q: Why is 74LCX16245MTDX recommended over 74LCX16245MTD?
A: Both onsemi 74LCX variants are electrically identical. The 74LCX16245MTDX is designated as Active product status with higher inventory (32,954 pcs) compared to 74LCX16245MTD (Last Time Buy status with 15,517 pcs). For long-term production continuity, the active status part is preferred.
Q: What is the significance of Moisture Sensitivity Level (MSL) differences?
A: MSL ratings indicate storage and handling requirements. PI74LPT16245AV has MSL 1 (unlimited shelf life). Most substitutes have MSL 1 or MSL 2 (1 year). Lower MSL numbers provide longer usable shelf life without special storage conditions. This parameter does not affect electrical compatibility but impacts supply chain logistics and component handling procedures.
Q: Can I mix different substitute part manufacturers in the same production run?
A: All listed substitutes meet identical electrical specifications for transceiver function, output drive, and supply voltage. However, manufacturing process variations between Diodes, onsemi, Renesas, and Texas Instruments may introduce minor timing or threshold differences not specified in the provided parameters. Design validation testing is recommended when combining multiple manufacturers in production.
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