Request Quote
(Ships tomorrow)
74ACT16244SSC Equivalent & Substitute Parts
Part Overview
The 74ACT16244SSC is a non-inverting buffer logic IC manufactured by onsemi, featuring 4 elements with 4 bits per element and 3-state output capability. This component operates within the 4.5V to 5.5V supply voltage range and is housed in a 48-SSOP package. 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 Part Number | 74ACT16244SSC |
| Manufacturer | onsemi |
| Logic Type | Buffer, Non-Inverting |
| Number of Elements | 4 |
| Number of Bits per Element | 4 |
| 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) |
| Mounting Type | Surface Mount |
| Product Status | Obsolete |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the 74ACT16244SSC are classified based on strict electrical and mechanical compatibility criteria:
Direct Substitutes (Same Base Product, Different Packaging/Manufacturer)
- Parts sharing the 74ACT16244 base product number with identical electrical specifications
- Allowable variations: packaging format (Tube, Tape & Reel, Cut Tape), manufacturer, and product status
- Key matching parameters: 4 elements, 4 bits per element, 3-state output, 24mA output current, 4.5V–5.5V supply, -40°C to 85°C operating range, 48-BSSOP package footprint
Parametric Equivalents (74FCT Series)
- Parts from the 74FCT162244 family with identical electrical performance specifications
- Functionally equivalent logic operation with matching output drive capability and voltage specifications
- Key matching parameters: 4 elements, 4 bits per element, 3-state output, 24mA output current, 4.5V–5.5V supply, -40°C to 85°C operating range, 48-BSSOP package footprint
Parameter Comparison
| Part Number | Manufacturer | Logic Type | Elements / Bits | Output Type | Output Current (mA) | Supply Voltage | Temp Range (°C) | Package | Product Status |
|---|---|---|---|---|---|---|---|---|---|
| 74ACT16244SSC | onsemi | Buffer, Non-Inverting | 4 / 4 | 3-State | 24, 24 | 4.5–5.5V | -40 to 85 | 48-BSSOP | Obsolete |
| 74ACT16244DL | Texas Instruments | Buffer, Non-Inverting | 4 / 4 | 3-State | 24, 24 | 4.5–5.5V | -40 to 85 | 48-BSSOP | Last Time Buy |
| 74ACT16244DGGR | Texas Instruments | Buffer, Non-Inverting | 4 / 4 | 3-State | 24, 24 | 4.5–5.5V | -40 to 85 | 48-TSSOP | Active |
| 74ACT16244DLR | Texas Instruments | Buffer, Non-Inverting | 4 / 4 | 3-State | 24, 24 | 4.5–5.5V | -40 to 85 | 48-BSSOP | Active |
| 74FCT162244ATPVG | IDT | Buffer, Non-Inverting | 4 / 4 | 3-State | 24, 24 | 4.5–5.5V | -40 to 85 | 48-BSSOP | Active |
| 74FCT162244CTPVG | IDT | Buffer, Non-Inverting | 4 / 4 | 3-State | 24, 24 | 4.5–5.5V | -40 to 85 | 48-BSSOP | Active |
| 74FCT162H244CTPVC | Texas Instruments | Buffer, Non-Inverting | 4 / 4 | 3-State | 24, 24 | 4.5–5.5V | -40 to 85 | 48-BSSOP | Obsolete |
| CY74FCT162244ATPVC | Texas Instruments | Buffer, Non-Inverting | 4 / 4 | 3-State | 24, 24 | 4.5–5.5V | -40 to 85 | 48-BSSOP | Obsolete |
| CY74FCT162244CTPVC | Texas Instruments | Buffer, Non-Inverting | 4 / 4 | 3-State | 24, 24 | 4.5–5.5V | -40 to 85 | 48-BSSOP | Obsolete |
| CY74FCT162244TPVC | Cypress Semiconductor | Buffer, Non-Inverting | 4 / 4 | 3-State | 24, 24 | 4.5–5.5V | -40 to 85 | 48-BSSOP | Active |
Engineering Selection Recommendations
Preferred Direct Substitutes (74ACT Series)
74ACT16244DLR (Texas Instruments) is the primary recommended substitute. This part maintains the 74ACT16244 base product number with active product status, ensuring long-term availability and supply chain stability. It is RoHS3 compliant and available in high inventory quantities (15,782 pcs). The 48-BSSOP package matches the original footprint exactly.
74ACT16244DGGR (Texas Instruments) provides an alternative with active status and substantial inventory (3,478 pcs). The package variant is 48-TSSOP, which has a narrower footprint (0.240" vs. 0.295" width) but maintains electrical compatibility. This option is suitable for designs where the reduced package width is acceptable.
74ACT16244DL (Texas Instruments) is available as a Last Time Buy option with 1,255 pcs in stock. While product status indicates limited future availability, it remains a valid substitute for immediate procurement needs.
Parametric Equivalents (74FCT Series)
CY74FCT162244TPVC (Cypress Semiconductor) is the only 74FCT variant with active product status, offering 1,806 pcs in inventory. This part provides parametric equivalence with identical electrical specifications and is suitable for applications where the 74FCT logic family is acceptable.
74FCT162244ATPVG and 74FCT162244CTPVG (IDT) are active alternatives with 4,078 pcs and 1,661 pcs respectively. Both maintain full electrical compatibility and are available from a secondary manufacturer source.
Obsolete 74FCT variants (74FCT162H244CTPVC, CY74FCT162244ATPVC, CY74FCT162244CTPVC) are available in limited quantities but carry obsolescence risk and should be considered only for short-term requirements or as secondary options.
Frequently Asked Questions (FAQ)
Q: Can I use 74ACT16244DGGR as a direct replacement for 74ACT16244SSC?
A: Yes, with package consideration. The 74ACT16244DGGR is electrically identical and shares the same base product number. The package variant changes from 48-BSSOP to 48-TSSOP, reducing the width from 0.295" to 0.240". Verify that your PCB layout accommodates the narrower footprint before substitution.
Q: What is the difference between 74ACT and 74FCT logic families?
A: Both families meet the specified electrical parameters for this application (4 elements, 4 bits per element, 3-state output, 24mA drive, 4.5–5.5V supply, -40°C to 85°C operation). The 74ACT series uses standard CMOS technology, while 74FCT uses FAST CMOS technology. Functionally, they are equivalent for this buffer application.
Q: Why is 74ACT16244DLR recommended over 74ACT16244DL?
A: Both are Texas Instruments 74ACT16244 parts with identical electrical specifications. 74ACT16244DLR has active product status with significantly higher inventory (15,782 pcs vs. 1,255 pcs) and RoHS3 compliance certification. DLR provides superior long-term availability and supply chain assurance.
Q: Are all substitute parts RoHS compliant?
A: RoHS3 compliance is confirmed for 74ACT16244DL, 74ACT16244DGGR, 74ACT16244DLR, 74FCT162H244CTPVC, CY74FCT162244ATPVC, and CY74FCT162244CTPVC. IDT and Cypress parts do not list RoHS status in the provided specifications. Verify compliance requirements with your procurement or quality department before final selection.
Q: Can I mix different substitute parts in the same design?
A: Yes. All listed substitutes meet identical electrical specifications and package footprints (with the exception of 74ACT16244DGGR's narrower 48-TSSOP). However, maintain consistency within a single PCB assembly to simplify procurement, testing, and field service documentation.
Q: What inventory levels should I consider for long-term production?
A: 74ACT16244DLR offers the highest inventory (15,782 pcs) with active status, suitable for sustained production. CY74FCT162244TPVC (1,806 pcs) and 74FCT162244ATPVG (4,078 pcs) provide secondary options. Parts with Last Time Buy or Obsolete status should be evaluated based on your production timeline and volume requirements.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts