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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | 74ABT |
| Packaging | Bulk | |
| Part Status | Active |
| Logic Type | Transceiver, Non-Inverting |
| Number of Elements | 1 |
| Number of Bits per Element | 8 |
| Input Type | - |
| Output Type | 3-State |
| Current - Output High, Low | 32mA, 64mA |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 24-SOIC (0.209", 5.30mm Width) |
| Supplier Device Package | 24-SO |
The SN74ABT646ANS is a high-performance octal bus transceiver from Texas Instruments, part of the 74ABT logic family. It features non-inverting 3-State outputs, enabling bidirectional data transfer between two buses. Operating from 4.5V to 5.5V, it supports 32mA source and 64mA sink current, making it ideal for driving heavy loads. This IC is suitable for 5V industrial control, telecommunications, and memory interfacing applications. Its 24-SOIC package is compact for space-constrained designs.
- High Drive Capability: 64mA sink current allows driving multiple loads without additional buffers.
- 3-State Outputs: Enables bus isolation and multiplexing, reducing system complexity.
- Wide 4.5V to 5.5V Supply: Compatible with standard 5V logic, simplifying power design.
- Non-Inverting Transceiver: Preserves signal polarity, reducing design errors.
Bidirectional Bus Interfacing
Use the SN74ABT646ANS to connect two data buses in a 5V system. Its 3-State outputs and non-inverting transceiver function allow controlled bidirectional data flow without signal inversion.
High-Speed Data Buffering
With 64mA sink capability, this IC can buffer high-speed signals to drive multiple loads, ensuring signal integrity in memory and peripheral interfaces.
Signal Isolation and Control
The 3-State outputs enable disconnecting a bus segment, useful in multiplexed systems where multiple devices share a common data path.
Industrial Control Logic
In industrial PLCs, this transceiver can interface between a 5V microcontroller and high-current actuators or sensors, providing robust signal conditioning.
Telecommunications Switching
For telecom line cards, the SN74ABT646ANS can route data between different processing units, maintaining signal quality over long traces.
Memory Address/Data Latching
Combine with latches to create a registered transceiver for memory systems, improving timing margins in high-speed address/data buses.
- Q: What logic family does the SN74ABT646ANS belong to?
- A: It belongs to the 74ABT family, offering high-speed BiCMOS performance.
- Q: What is the function of this IC?
- A: It is an octal bus transceiver with non-inverting outputs, ideal for bidirectional data flow.
- Q: How many channels does it have?
- A: It has 1 channel (8-bit) for data transmission.
- Q: What is the output type?
- A: It features 3-State outputs for bus-oriented applications.
- Q: What is the operating voltage range?
- A: It operates from 4.5V to 5.5V, making it suitable for 5V systems.
- Q: What package is available?
- A: It comes in a 24-SOIC (0.209", 5.30mm Width) package.
SN74ABT646ANS.pdf
- Q: What logic family does the SN74ABT646ANS belong to?
- A: It belongs to the 74ABT family, offering high-speed BiCMOS performance.
- Q: What is the function of this IC?
- A: It is an octal bus transceiver with non-inverting outputs, ideal for bidirectional data flow.
- Q: How many channels does it have?
- A: It has 1 channel (8-bit) for data transmission.
- Q: What is the output type?
- A: It features 3-State outputs for bus-oriented applications.
- Q: What is the operating voltage range?
- A: It operates from 4.5V to 5.5V, making it suitable for 5V systems.
- Q: What package is available?
- A: It comes in a 24-SOIC (0.209", 5.30mm Width) package.