Overview
The CD74HCT08M96, produced by Texas Instruments, is a quadruple 2-input AND gate integrated circuit. This device is part of the HCT (High-Speed CMOS) logic family and is designed to operate within a wide range of supply voltages and temperatures. It features four independent AND gates, each performing the Boolean function Y = A ● B in positive logic. The CD74HCT08M96 is known for its compatibility with both LSTTL (Low-power Schottky Transistor-Transistor Logic) and CMOS (Complementary Metal-Oxide-Semiconductor) input logic, making it versatile for various digital circuit applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage | 4.5 | 5.5 | 5.5 | V |
| VIH High-level Input Voltage | 2 | V | ||
| VIL Low-level Input Voltage | 0.8 | V | ||
| TA Operating Free-Air Temperature | -55 | 125 | °C | |
| Propagation Delay (A or B to Y) at VCC = 4.5V, CL = 50pF | 25 | 31 | 38 | ns |
| Transition Time (Y) at VCC = 4.5V, CL = 50pF | 15 | 19 | 22 | ns |
| Input Leakage Current (II) at VCC = 5.5V | ±0.1 | ±1 | µA | |
| Quiescent Device Current (ICC) at VCC = 5.5V | 2 | 40 | µA |
Key Features
- LSTTL input logic compatible – VIL(max) = 0.8V, VIH(min) = 2V
- CMOS input logic compatible – II ≤ 1µA at VOL, VOH
- Buffered inputs
- Operation over a wide temperature range: -55°C to +125°C
- Supports fanout up to 10 LSTTL loads
- Significant power reduction compared to LSTTL logic ICs
- Balanced CMOS push-pull outputs
- Clamp diode structure for input and output protection
Applications
- Combining power good signals
- Enabling digital signals
- Implementing complex digital logic functions, such as creating a 4-input AND gate by combining multiple 2-input AND gates
- Direct control of RESET pins in motor controllers or other digital systems
Q & A
- What is the CD74HCT08M96?
The CD74HCT08M96 is a quadruple 2-input AND gate integrated circuit produced by Texas Instruments.
- What is the operating voltage range of the CD74HCT08M96?
The CD74HCT08M96 operates within a supply voltage range of 4.5V to 5.5V.
- What are the key features of the CD74HCT08M96?
Key features include LSTTL and CMOS input logic compatibility, buffered inputs, wide operating temperature range, and significant power reduction compared to LSTTL logic ICs.
- What is the propagation delay of the CD74HCT08M96?
The propagation delay from input to output (A or B to Y) at VCC = 4.5V and CL = 50pF is typically 31ns, with a range of 25ns to 38ns.
- How many AND gates does the CD74HCT08M96 contain?
The CD74HCT08M96 contains four independent 2-input AND gates.
- What are some common applications of the CD74HCT08M96?
Common applications include combining power good signals, enabling digital signals, and implementing complex digital logic functions.
- What is the input leakage current of the CD74HCT08M96?
The input leakage current (II) at VCC = 5.5V is typically ±0.1µA, with a maximum of ±1µA.
- How does the CD74HCT08M96 protect against voltage spikes?
The device features clamp diode structures for both inputs and outputs to protect against voltage spikes beyond the specified ratings.
- What is the quiescent device current of the CD74HCT08M96?
The quiescent device current (ICC) at VCC = 5.5V is typically 2µA, with a maximum of 40µA.
- What are the thermal metrics for the CD74HCT08M96?
The junction-to-ambient thermal resistance (RθJA) for the SOIC package is 138.7°C/W, and for the PDIP package, it is 103.8°C/W.
