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74ACTQ16245SSC Equivalent & Substitute Parts
Part Overview
The 74ACTQ16245SSC is a non-inverting transceiver logic IC manufactured by onsemi, featuring 2 elements with 8 bits per element and 3-state output capability. This 48-SSOP surface mount device operates across a 4.5V to 5.5V supply range and is rated for -40°C to 85°C operating temperature. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Series | 74ACTQ |
| 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-BSSOP (0.295", 7.50mm Width) |
| Supplier Device Package | 48-SSOP |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution for the 74ACTQ16245SSC is determined by strict equivalence across the following critical parameters:
- Logic Type: Transceiver, Non-Inverting
- Number of Elements: 2
- Number of Bits per Element: 8
- Output Type: 3-State
- 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)
- Current - Output High, Low: 24mA, 24mA
Substitute parts are grouped into two categories: Similar parts that match all critical parameters with active product status, and Parametric Equivalents that maintain functional compatibility while differing in product status or packaging format.
Parameter Comparison
| Part Number | Manufacturer | Series | Logic Type | Elements | Bits/Element | Output Type | Current (mA) | Supply Voltage | Temp Range | Package | Product Status | MSL |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 74ACTQ16245SSC | onsemi | 74ACTQ | Transceiver, Non-Inverting | 2 | 8 | 3-State | 24, 24 | 4.5V ~ 5.5V | -40°C ~ 85°C | 48-BSSOP | Obsolete | 1 |
| 74ACT16245DGGR | Texas Instruments | 74ACT | Transceiver, Non-Inverting | 2 | 8 | 3-State | 24, 24 | 4.5V ~ 5.5V | -40°C ~ 85°C | 48-TFSOP | Active | 1 |
| 74ACT16245DLR | Texas Instruments | 74ACT | Transceiver, Non-Inverting | 2 | 8 | 3-State | 24, 24 | 4.5V ~ 5.5V | -40°C ~ 85°C | 48-BSSOP | Active | 1 |
| SN74ACT16245QDLREP | Texas Instruments | 74ACT | Transceiver, Non-Inverting | 2 | 8 | 3-State | 16, 16 | 4.5V ~ 5.5V | -40°C ~ 125°C | 48-BSSOP | Active | 1 |
| 74ACT16245DL | Texas Instruments | 74ACT | Transceiver, Non-Inverting | 2 | 8 | 3-State | 24, 24 | 4.5V ~ 5.5V | -40°C ~ 85°C | 48-BSSOP | Last Time Buy | 1 |
| 74ACT16623DL | Texas Instruments | 74ACT | Transceiver, Non-Inverting | 2 | 8 | 3-State | 24, 24 | 4.5V ~ 5.5V | -40°C ~ 85°C | 48-BSSOP | Last Time Buy | 1 |
| 74FCT162245ATPVG | Renesas Electronics Corporation | 74FCT | Transceiver, Non-Inverting | 2 | 8 | 3-State | 24, 24 | 4.5V ~ 5.5V | -40°C ~ 85°C | 48-BSSOP | Obsolete | 3 |
| 74FCT162H245ATPVC | Texas Instruments | 74FCT | Transceiver, Non-Inverting | 2 | 8 | 3-State | 24, 24 | 4.5V ~ 5.5V | -40°C ~ 85°C | 48-BSSOP | Obsolete | 1 |
| 74FCT162H245CTPVC | Cypress Semiconductor Corp | 74FCT | Transceiver, Non-Inverting | 2 | 8 | 3-State | 24, 24 | 4.5V ~ 5.5V | -40°C ~ 85°C | 48-BSSOP | Active | 1 |
| CY74FCT162245ATPVC | Cypress Semiconductor Corp | 74FCT | Transceiver, Non-Inverting | 2 | 8 | 3-State | 24, 24 | 4.5V ~ 5.5V | -40°C ~ 85°C | 48-BSSOP | Active | 1 |
| CY74FCT162245CTPVC | Texas Instruments | 74FCT | Transceiver, Non-Inverting | 2 | 8 | 3-State | 24, 24 | 4.5V ~ 5.5V | -40°C ~ 85°C | 48-BSSOP | Obsolete | 1 |
Engineering Selection Recommendations
For new designs and ongoing procurement, the following parts are recommended based on active product status and compliance certifications:
74ACT16245DLR (Texas Instruments) is the primary substitute, offering identical electrical parameters, matching 48-BSSOP package, active product status, and ROHS3 compliance. This part provides direct functional replacement with assured long-term availability.
74FCT162H245CTPVC (Cypress Semiconductor Corp) is an alternative active substitute with identical electrical specifications and 48-BSSOP package. This part maintains full parametric compatibility and active product status.
CY74FCT162245ATPVC (Cypress Semiconductor Corp) provides equivalent functionality with active product status and ROHS3 compliance, suitable for applications where Cypress sourcing is preferred.
SN74ACT16245QDLREP (Texas Instruments) offers extended operating temperature range (-40°C to 125°C) and reduced output current (16mA vs 24mA), making it suitable for temperature-critical applications where the lower current specification is acceptable.
Parts with Last Time Buy or Obsolete status (74ACT16245DL, 74ACT16623DL, 74FCT162245ATPVG, 74FCT162H245ATPVC, CY74FCT162245CTPVC) should be evaluated only for legacy system support or when active alternatives are unavailable.
Frequently Asked Questions (FAQ)
Q: Can 74ACT16245DGGR replace 74ACTQ16245SSC directly?
A: 74ACT16245DGGR matches all critical electrical parameters but uses a 48-TFSOP package (0.240", 6.10mm width) instead of the 48-BSSOP package (0.295", 7.50mm width). PCB layout modification is required for this substitution.
Q: What is the difference between 74ACT16245DLR and SN74ACT16245QDLREP?
A: Both are Texas Instruments 74ACT series parts with identical package and supply voltage. SN74ACT16245QDLREP extends operating temperature to -40°C to 125°C and reduces output current to 16mA per channel. Select SN74ACT16245QDLREP only if the lower current specification meets application requirements.
Q: Why does 74FCT162245ATPVG have MSL 3 instead of MSL 1?
A: 74FCT162245ATPVG (Renesas) carries MSL 3 (168 Hours) moisture sensitivity, requiring stricter handling and storage conditions compared to MSL 1 parts. This affects supply chain logistics and shelf life management.
Q: Are all substitute parts ROHS3 compliant?
A: Active status parts (74ACT16245DGGR, 74ACT16245DLR, SN74ACT16245QDLREP, 74FCT162H245CTPVC, CY74FCT162245ATPVC) are ROHS3 compliant. Obsolete and Last Time Buy parts vary in compliance status; verify specific certifications before procurement.
Q: Can 74ACT16623DL be used as a substitute?
A: 74ACT16623DL maintains identical electrical parameters and 48-BSSOP package but carries Last Time Buy status. It is functionally equivalent but has limited availability and is not recommended for new designs.
Q: What packaging options are available for active substitutes?
A: Active substitutes are available in the following packages: 48-BSSOP (74ACT16245DLR, SN74ACT16245QDLREP, 74FCT162H245CTPVC, CY74FCT162245ATPVC) and 48-TFSOP (74ACT16245DGGR). The 48-BSSOP package matches the original 74ACTQ16245SSC footprint.
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