Overview
The CD74HC244M96G4 is a high-speed CMOS logic octal buffer/line driver produced by Texas Instruments. This component is part of the CD74HC244 series, which includes non-inverting three-state buffers. The CD74HC244 is characterized by its two active-low output enables and is available in various package types, including the SOIC (Small Outline Integrated Circuit) package for the CD74HC244M96G4.
This device is designed for high-performance applications, offering balanced propagation delay and transition times, significant power reduction compared to LSTTL logic ICs, and a wide operating temperature range from –55°C to 125°C.
Key Specifications
| Parameter | Unit | Minimum | Typical | Maximum |
|---|---|---|---|---|
| Supply Voltage (VCC) | V | 2 | - | 6 |
| Propagation Delay (Data to Outputs) | ns | 110 | 140 | 165 |
| Output Enable and Disable Time | ns | 150 | 190 | 225 |
| Output Transition Time | ns | 60 | 75 | 90 |
| Input Capacitance | pF | 10 | - | 10 |
| Three-state Output Capacitance | pF | 20 | - | 20 |
| Power Dissipation Capacitance | pF | 5 | - | 40 |
| Operating Temperature Range | °C | -55 | - | 125 |
| Package Type | - | - | SOIC (20 pins) | - |
Key Features
- Non-inverting three-state buffers with two active-low output enables.
- High-current bus driver outputs capable of driving up to 15 LSTTL loads.
- Wide operating temperature range: –55°C to 125°C.
- Balanced propagation delay and transition times.
- Significant power reduction compared to LSTTL logic ICs.
- HC types operate from 2 V to 6 V, while HCT types operate from 4.5 V to 5.5 V.
- High noise immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5 V for HC types.
- Direct LSTTL input logic compatibility for HCT types.
- Buffered inputs and three-state outputs.
Applications
- High-speed digital logic circuits.
- Buffering and driving long lines in digital systems.
- Applications requiring low power consumption and high noise immunity.
- Industrial control systems.
- Automotive electronics.
- Telecommunication equipment.
Q & A
- What is the CD74HC244M96G4 used for?
The CD74HC244M96G4 is used as a high-speed CMOS logic octal buffer/line driver, suitable for applications requiring non-inverting three-state buffers.
- What are the key features of the CD74HC244M96G4?
Key features include non-inverting three-state buffers, high-current bus driver outputs, wide operating temperature range, balanced propagation delay, and significant power reduction compared to LSTTL logic ICs.
- What is the operating voltage range for the CD74HC244M96G4?
The operating voltage range is from 2 V to 6 V for HC types.
- What is the propagation delay for the CD74HC244M96G4?
The propagation delay is typically 140 ns for data to outputs at VCC = 5 V and CL = 15 pF.
- How many LSTTL loads can the CD74HC244M96G4 drive?
The device can drive up to 15 LSTTL loads.
- What is the operating temperature range for the CD74HC244M96G4?
The operating temperature range is from –55°C to 125°C.
- What type of package does the CD74HC244M96G4 come in?
The CD74HC244M96G4 comes in a SOIC (Small Outline Integrated Circuit) package with 20 pins.
- What are the noise immunity characteristics of the CD74HC244M96G4?
The device has high noise immunity with NIL = 30%, NIH = 30% of VCC at VCC = 5 V for HC types.
- Can the CD74HC244M96G4 be used in safety-critical applications?
It is important to refer to the specific documentation and guidelines provided by Texas Instruments regarding the use of this device in safety-critical applications.
- How should unused input pins be handled on the CD74HC244M96G4?
Unused input pins must not be left floating and should be connected to a logic high or logic low voltage as defined by the input voltage specifications.
