Overview
The CD74HC240M96 is a high-speed CMOS logic octal buffer/line driver produced by Texas Instruments. This component is part of the HC240 series, which includes inverting three-state buffers with two active-low output enables. The CD74HC240 is designed to provide high-performance buffering and line driving capabilities, making it suitable for a wide range of digital logic applications.
Key Specifications
| Parameter | Unit | Min | Typ | Max |
|---|---|---|---|---|
| Propagation Delay (Data to Outputs) | ns | 100 | 125 | 150 |
| Output Enable and Disable Time | ns | 150 | 190 | 225 |
| Output Transition Time | ns | 60 | 75 | 90 |
| Input Capacitance | pF | 10 | 10 | 10 |
| Three-state Output Capacitance | pF | 20 | 20 | 20 |
| Power Dissipation Capacitance | pF | 38 | - | - |
| Operating Voltage Range | V | 2 | - | 6 |
| Operating Temperature Range | ℃ | -55 | - | 125 |
| Package Type | - | SOIC (20-pin) | - | - |
| Body Size (Nominal) | mm | 12.80 x 7.50 | - | - |
Key Features
- Inverting three-state buffers with two active-low output enables
- Typical propagation delay of 8ns at VCC = 5 V, CL = 15 pF, TA = 25℃
- Three-state outputs and buffered inputs
- High-current bus driver outputs capable of driving up to 15 LSTTL loads
- Wide operating temperature range: –55℃ to 125℃
- Balanced propagation delay and transition times
- Significant power reduction compared to LSTTL logic ICs
- HC types: 2 V to 6 V operation, high noise immunity
- HCT types: 4.5 V to 5.5 V operation, direct LSTTL input logic compatibility
Applications
- Digital logic circuits requiring high-speed buffering and line driving
- Computer peripherals and interfaces
- Industrial control systems
- Automotive electronics
- Telecommunication equipment
- Embedded systems and microcontrollers
Q & A
- What is the typical propagation delay of the CD74HC240?
The typical propagation delay is 8ns at VCC = 5 V, CL = 15 pF, and TA = 25℃.
- What is the operating voltage range for the CD74HC240?
The operating voltage range is from 2 V to 6 V.
- What is the maximum operating temperature for the CD74HC240?
The maximum operating temperature is 125℃.
- How many LSTTL loads can the CD74HC240 drive?
The CD74HC240 can drive up to 15 LSTTL loads.
- What is the package type for the CD74HC240M96?
The package type is SOIC (20-pin).
- Does the CD74HC240 have three-state outputs?
- What is the input capacitance of the CD74HC240?
The input capacitance is 10 pF.
- Is the CD74HC240 compatible with LSTTL input logic?
The HCT types are directly compatible with LSTTL input logic.
- What is the power dissipation capacitance of the CD74HC240?
The power dissipation capacitance is 38 pF.
- Can the CD74HC240 be used in safety-critical applications?
It is recommended to consult the datasheet and Texas Instruments' guidelines for use in safety-critical applications.
