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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | 74LVCH |
| 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 | 24mA, 24mA |
| Voltage - Supply | 1.65V ~ 3.6V |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 20-SSOP (0.209", 5.30mm Width) |
| Supplier Device Package | 20-SSOP |
The SN74LVCH245ADB is a high-performance octal bus transceiver from Texas Instruments, part of the 74LVCH logic family. It features non-inverting buffers with 3-State outputs, enabling bidirectional data flow between two buses. Operating from 1.65V to 3.6V, it supports low-voltage systems while delivering 24mA of output current per channel. The 20-pin SSOP package is compact for space-constrained designs. Ideal for bus interfacing, level shifting, and signal buffering in consumer, industrial, and communication equipment.
- Wide 1.65V to 3.6V Supply Range: Compatible with 1.8V, 2.5V, and 3.3V logic, reducing the need for multiple level translators.
- High 24mA Output Drive: Ensures reliable signal transmission over long PCB traces and into multiple loads.
- 3-State Outputs: Allows multiple devices to share a common bus without data corruption.
- Bus-Hold Functionality: Eliminates the need for external pull-up resistors, saving board space and cost.
- Extended Temperature Range (-40°C to 125°C): Suitable for automotive and industrial environments.
Bidirectional Bus Interfacing
Connect microcontrollers to memory or peripheral buses. The 3-State outputs and direction control (DIR) allow seamless data flow in both directions without bus contention.
Level Shifting in Mixed-Voltage Systems
With a wide 1.65V to 3.6V supply range, it can interface between 1.8V and 3.3V logic domains, simplifying mixed-voltage PCB designs.
Signal Buffering for High-Speed Data Lines
Use it to buffer address/data lines in DSP or FPGA systems. The 24mA output drive ensures signal integrity over longer traces.
Memory Module Drivers
Drive multiple DRAM or SRAM chips from a single controller. The high drive current and 3-State outputs enable efficient memory bank selection.
Hot-Swap and Backplane Applications
The bus-hold feature (74LVCH family) prevents floating inputs, making it ideal for hot-swap cards in telecom backplanes.
Portable Electronics
In battery-powered devices, the low-voltage operation reduces power consumption while maintaining high-speed data transfer between SoC and peripherals.
- Q: What logic family does the SN74LVCH245ADB belong to?
- A: It belongs to the 74LVCH family, known for low-voltage operation and bus-hold functionality.
- Q: What is the function of this IC?
- A: It is an octal bus transceiver with non-inverting data paths, ideal for bidirectional communication.
- Q: How many channels does it have?
- A: It features 8 channels (1 x 8-bit), providing 8-bit bidirectional data flow.
- Q: What is the output type?
- A: The outputs are 3-State, allowing connection to a shared bus without contention.
- Q: What is the operating voltage range?
- A: It operates from 1.65V to 3.6V, making it suitable for low-voltage 1.8V, 2.5V, and 3.3V systems.
- Q: What package is available?
- A: It comes in a 20-pin SSOP package (5.30mm width).
SN74LVCH245ADB.pdf
- Q: What logic family does the SN74LVCH245ADB belong to?
- A: It belongs to the 74LVCH family, known for low-voltage operation and bus-hold functionality.
- Q: What is the function of this IC?
- A: It is an octal bus transceiver with non-inverting data paths, ideal for bidirectional communication.
- Q: How many channels does it have?
- A: It features 8 channels (1 x 8-bit), providing 8-bit bidirectional data flow.
- Q: What is the output type?
- A: The outputs are 3-State, allowing connection to a shared bus without contention.
- Q: What is the operating voltage range?
- A: It operates from 1.65V to 3.6V, making it suitable for low-voltage 1.8V, 2.5V, and 3.3V systems.
- Q: What package is available?
- A: It comes in a 20-pin SSOP package (5.30mm width).