Texas Instruments SN74HC245N
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.68 | $0.68 |
| 15+ | $0.66 | $9.90 |
| 25+ | $0.65 | $16.25 |
| 50+ | $0.61 | $30.50 |
| 100+ | $0.54 | $54.00 |
| N+ | $0.11 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | 74HC |
| Packaging | Tube | |
| 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 | 7.8mA, 7.8mA |
| Voltage - Supply | 2V ~ 6V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | 20-DIP (0.300", 7.62mm) |
| Supplier Device Package | 20-PDIP |
| ROHS |
The SN74HC245N is an octal non-inverting transceiver from Texas Instruments' 74HC family. It features 8 channels with 3-state outputs, capable of sourcing and sinking 7.8mA. Operating from 2V to 6V, it is compatible with TTL and CMOS logic. The 20-DIP package is ideal for through-hole prototyping and legacy designs. This transceiver is widely used for bidirectional data bus communication in microprocessors, memory systems, and industrial controls.
- 8-Bit Bidirectional Data Path: Simplifies byte-wide data transfer between buses, reducing component count.
- 3-State Outputs: Allows multiple devices to share the same data bus without contention.
- Wide 2V to 6V Supply Range: Compatible with 5V TTL and 3.3V CMOS logic, offering design flexibility.
- DIP Package for Easy Prototyping: Ideal for breadboard use and through-hole PCB designs.
Bidirectional Data Bus
The SN74HC245 is the standard choice for implementing bidirectional data buses between microprocessors, memory, and peripherals, with direction controlled by the DIR pin.
Memory Expansion
In systems with multiple memory banks, this transceiver can buffer and switch data lines, allowing the CPU to communicate with different memory modules.
Microcontroller I/O Expansion
It can be used to expand the I/O capabilities of a microcontroller by buffering and isolating external data lines.
Legacy 5V System Design
With its 2V to 6V range, it is ideal for designing or maintaining 5V logic systems, including retro computing and industrial equipment.
Test and Measurement Equipment
In bench instruments, the SN74HC245 can route data between different internal modules, ensuring reliable signal transfer.
Prototyping and Education
Its DIP package makes it easy to use on breadboards, making it a popular choice for educational projects and rapid prototyping.
- Q: What is the SN74HC245?
- A: It is an octal (8-bit) non-inverting transceiver from the 74HC logic family by Texas Instruments.
- Q: What is the operating voltage range?
- A: It operates from 2V to 6V, making it compatible with 5V and 3.3V systems.
- Q: What is the output type?
- A: It features 3-State outputs for bidirectional bus communication.
- Q: How many channels does it have?
- A: It has 8 channels, providing a full byte-wide data path.
- Q: What is the output current capability?
- A: It can source and sink 7.8mA of current.
- Q: What package is it available in?
- A: It is available in a 20-DIP (Dual In-line Package) with a 7.62mm width.
- Q: What is the SN74HC245?
- A: It is an octal (8-bit) non-inverting transceiver from the 74HC logic family by Texas Instruments.
- Q: What is the operating voltage range?
- A: It operates from 2V to 6V, making it compatible with 5V and 3.3V systems.
- Q: What is the output type?
- A: It features 3-State outputs for bidirectional bus communication.
- Q: How many channels does it have?
- A: It has 8 channels, providing a full byte-wide data path.
- Q: What is the output current capability?
- A: It can source and sink 7.8mA of current.
- Q: What package is it available in?
- A: It is available in a 20-DIP (Dual In-line Package) with a 7.62mm width.

SN74HC245N.pdf