Texas Instruments SN74HC245AN
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.05 | $1.05 |
| 15+ | $1.02 | $15.30 |
| 25+ | $1.00 | $25.00 |
| 50+ | $0.94 | $47.00 |
| 100+ | $0.83 | $83.00 |
| N+ | $0.17 | 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 SN74HC245AN is a non-inverting octal transceiver from Texas Instruments, part of the 74HC logic family. It features eight bidirectional channels with 3-State outputs, enabling flexible data routing. Operating from a 2V to 6V supply, it can source and sink 7.8mA, making it suitable for TTL-compatible loads. The 20-DIP package is ideal for through-hole prototyping. Typical applications include bus interfacing, level shifting, and memory buffering in 5V systems.
- Wide Supply Range (2V-6V): Works with 3.3V, 5V, and even 6V systems, offering design flexibility.
- Bidirectional Operation: Allows data flow in both directions, reducing component count.
- 3-State Outputs: Enables bus sharing and prevents data contention.
- DIP Package: Easy to use in breadboards and through-hole PCBs for prototyping.
Bidirectional Data Bus for Microcontrollers
The SN74HC245AN is a classic transceiver for 8-bit data buses. The DIR pin controls data direction, and the OE pin allows for high-impedance isolation, making it ideal for memory-mapped I/O systems.
5V to 3.3V Level Shifting
When operating at 5V, it can drive 3.3V logic if the 3.3V device has 5V-tolerant inputs. This enables communication between legacy 5V microcontrollers and newer 3.3V peripherals.
Driving Long Cables in Industrial Systems
In industrial control, this transceiver can drive signals over longer cables (up to a few meters) with proper termination. The 7.8mA drive current is sufficient for TTL-level loads.
Memory Address/Data Buffering
In retro computing or hobbyist projects, it can buffer address or data lines between a CPU and SRAM/ROM. The 3-State outputs prevent bus conflicts during read/write cycles.
LED Matrix Driving
With 7.8mA sink capability, it can drive LED columns in a multiplexed matrix. The bidirectional nature allows for scanning rows and columns efficiently.
Educational and Prototyping
Due to its wide voltage range (2V-6V) and DIP package, it is excellent for breadboard prototyping. Students can learn bus interfacing and 3-State logic concepts hands-on.
- Q: What is the logic family of the SN74HC245AN?
- A: It belongs to the 74HC (High-Speed CMOS) logic family.
- Q: What is the function of this IC?
- A: It is a non-inverting transceiver with 8 channels (1 x 8-bit) and 3-State outputs.
- Q: What is the operating voltage range?
- A: The supply voltage is 2V to 6V.
- Q: What is the output current capability?
- A: It can source and sink 7.8mA.
- Q: What package is available?
- A: It comes in a 20-DIP (0.300", 7.62mm) package.
- Q: What is the operating temperature range?
- A: It is rated for -40°C to 85°C (TA).
SN74HC245AN.pdf
- Q: What is the logic family of the SN74HC245AN?
- A: It belongs to the 74HC (High-Speed CMOS) logic family.
- Q: What is the function of this IC?
- A: It is a non-inverting transceiver with 8 channels (1 x 8-bit) and 3-State outputs.
- Q: What is the operating voltage range?
- A: The supply voltage is 2V to 6V.
- Q: What is the output current capability?
- A: It can source and sink 7.8mA.
- Q: What package is available?
- A: It comes in a 20-DIP (0.300", 7.62mm) package.
- Q: What is the operating temperature range?
- A: It is rated for -40°C to 85°C (TA).
