Texas Instruments CD74HC243EE4
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.00 | $2.00 |
| 15+ | $0.46 | $6.90 |
| 25+ | $0.45 | $11.25 |
| 50+ | $0.43 | $21.50 |
| 100+ | $0.38 | $38.00 |
| N+ | $0.08 | 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 | 4 |
| Input Type | - |
| Output Type | 3-State |
| Current - Output High, Low | 7.8mA, 7.8mA |
| Voltage - Supply | 2V ~ 6V |
| Operating Temperature | -55°C ~ 125°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | 14-DIP (0.300", 7.62mm) |
| Supplier Device Package | 14-PDIP |
| ROHS |  |
The CD74HC243EE4 from Texas Instruments is a high-speed CMOS quad transceiver featuring non-inverting outputs with 3-state capability. Operating from a 2V to 6V supply, it provides excellent compatibility with both TTL and CMOS logic levels. Each of its four channels can source or sink 7.8mA, making it ideal for bidirectional bus communication, signal conditioning, and level translation. Housed in a robust 14-pin DIP package, this transceiver is a versatile solution for a wide range of digital systems.
- Bidirectional Data Transfer: Supports data flow in both directions on a shared bus, ideal for memory and I/O interfaces.
- Wide 2V to 6V Supply Range: Ensures compatibility with 3.3V and 5V logic systems, simplifying mixed-voltage design.
- 3-State Outputs: Allows for direct connection to shared data buses, preventing signal contention.
- Extended Temperature Range (-55°C to 125°C): Suitable for demanding industrial and automotive applications.
Bidirectional Bus Communication
The CD74HC243EE4 is designed for bidirectional data transfer on a shared bus. Its 3-State outputs and direction control allow data to flow in either direction, making it ideal for memory and I/O interfaces.
Data Acquisition Systems
In data acquisition systems, this transceiver can buffer and route data between sensors, an ADC, and a microcontroller, ensuring clean and reliable signal transfer in both directions.
Level Shifting in Mixed-Voltage Systems
With a wide 2V to 6V supply range, this device can be used to shift logic levels. Operating at 5V, it can accept 3.3V inputs (with proper thresholds) and provide 5V output levels, or vice versa, simplifying mixed-voltage designs.
Industrial Control and Automation
The wide operating temperature range (-55°C to 125°C) makes it suitable for harsh industrial environments. It can buffer sensor signals, control actuator drivers, and interface with PLCs in factory automation systems.
Signal Buffering for High-Fanout Applications
When a logic signal needs to drive multiple inputs, this transceiver provides the necessary current and drive strength. Its high-impedance inputs minimize loading on the source, while its outputs can drive several TTL loads.
Driving LEDs and Relays
Each output can source or sink up to 7.8mA, which is sufficient to directly drive LEDs with a series resistor. It can also drive low-power relays or other inductive loads when a flyback diode is used.
- Q: What logic family does the CD74HC243EE4 belong to?
- A: It belongs to the 74HC (High-Speed CMOS) logic family.
- Q: What is the function of this IC?
- A: It is a Quad Transceiver with Non-Inverting outputs and 3-State output capability.
- Q: How many channels does it have?
- A: It has 4 transceiver channels (often counted as 1 quad device).
- Q: What is the output type?
- A: The outputs are 3-State, allowing for bidirectional bus communication.
- Q: What is the operating voltage range?
- A: It operates from 2V to 6V, making it compatible with TTL, 3.3V, and 5V systems.
- Q: What package is available?
- A: It comes in a 14-pin DIP (0.300", 7.62mm) package.
CD74HC243EE4.pdf
- Q: What logic family does the CD74HC243EE4 belong to?
- A: It belongs to the 74HC (High-Speed CMOS) logic family.
- Q: What is the function of this IC?
- A: It is a Quad Transceiver with Non-Inverting outputs and 3-State output capability.
- Q: How many channels does it have?
- A: It has 4 transceiver channels (often counted as 1 quad device).
- Q: What is the output type?
- A: The outputs are 3-State, allowing for bidirectional bus communication.
- Q: What is the operating voltage range?
- A: It operates from 2V to 6V, making it compatible with TTL, 3.3V, and 5V systems.
- Q: What package is available?
- A: It comes in a 14-pin DIP (0.300", 7.62mm) package.
