SN74ALS645A-1NSR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN74ALS645A-1NSR is an octal bus transceiver with 3-state outputs, featuring bidirectional data flow with common direction control. Supports ALS logic family with 50 pF load capacitance in SOIC-20 package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- SN74ALS645A-1NSR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.1219(MOQ 25)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN74ALS645A-1NSR?
- Bidirectional octal bus transceiver with common direction control for flexible data flow management
- 3-state outputs enable bus sharing in multi-master system architectures
- ALS logic family delivers high-speed switching with low power consumption in SOIC-20 package
What is SN74ALS645A-1NSR used for?
The SN74ALS645A-1NSR is ideal for interfacing between different bus segments in microprocessor systems, enabling bidirectional data transfer between CPUs, memory, and peripheral devices. It is commonly used in data communication equipment, industrial control systems, and backplane bus interfaces where reliable signal buffering and direction control are essential.
What are the specifications of SN74ALS645A-1NSR?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | WITH DIRECTION CONTROL,SNJ54AS645J,84033012A,8403301RA,8403301SA IS DELETED FOR SUBGROUP FIX |
| Control Type | COMMON CONTROL |
| Count Direction | BIDIRECTIONAL |
| Family | ALS |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS TRANSCEIVER |
| Max I(ol) | 0.024A |
| Number of Bits | 8 |
| Number of Functions | 8 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP20,.3 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 58mA |
| Prop. Delay@Nom-Sup | 10ns |
| Propagation Delay (tpd) | 10ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | TTL |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia |
Where can I find the SN74ALS645A-1NSR datasheet?
SN74ALS645A-1NSR Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74ALS645A-1NSR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the SN74ALS645A-1NSR and what does it do?
The SN74ALS645A-1NSR is an octal bus transceiver with 3-state outputs from Texas Instruments. It supports bidirectional data transfer with a common direction control signal, making it suitable for bus interfacing applications in microprocessor and digital systems.
What package and logic family does the SN74ALS645A-1NSR use?
The SN74ALS645A-1NSR comes in a 20-pin Small Outline (SOIC-20) package and belongs to the ALS (Advanced Low-power Schottky) logic family, which offers a good balance of speed and power consumption with a 50 pF load capacitance rating.
What are typical applications for the SN74ALS645A-1NSR?
This device is commonly used in bus interface circuits, data communication equipment, industrial control systems, and microprocessor-based designs where bidirectional data transfer between multiple bus segments is required with 3-state output control.
Can the SN74ALS645A-1NSR replace other bus transceivers?
The SN74ALS645A-1NSR is compatible with other ALS and AS family octal bus transceivers in similar pinout packages. Always verify voltage levels, switching speeds, and drive strength specifications before substituting, as performance parameters vary across logic families.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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| 25+ | $1.8400 | $46.00 |
| 100+ | $1.7300 | $173.00 |
| 125+ | $1.4958 | $186.97 |
| 400+ | $1.1219 | $448.76 |
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