Overview
The SN74HC7001DR, produced by Texas Instruments, is a quadruple 2-input AND gate integrated circuit with Schmitt-trigger inputs. This device is part of the HC (High-Speed CMOS) logic family and is designed to perform the Boolean function Y = A ● B in positive logic for each of its four independent gates. Although the device is now obsolete, it was widely used for its robust features and wide operating range.
Key Specifications
| Parameter | Min | Nom | Max | Unit |
|---|---|---|---|---|
| VCC (Supply Voltage) | 2 | 5 | 6 | V |
| VI (Input Voltage) | 0 | VCC | V | |
| VO (Output Voltage) | 0 | VCC | V | |
| TA (Operating Free-Air Temperature) | -40 | 85 | °C | |
| tpd (Propagation Delay) at 2 V | 60 | 130 | 163 | ns |
| tpd (Propagation Delay) at 4.5 V | 18 | 26 | 33 | ns |
| tpd (Propagation Delay) at 6 V | 14 | 22 | 28 | ns |
| tt (Transition Time) at 2 V | 28 | 75 | 95 | ns |
| tt (Transition Time) at 4.5 V | 8 | 15 | 19 | ns |
| tt (Transition Time) at 6 V | 6 | 13 | 16 | ns |
| ICC (Supply Current) at 6 V | 2 | 20 | µA | |
| Ci (Input Capacitance) | 3 | 10 | pF |
Key Features
- Buffered Inputs: The device features buffered inputs which help in stabilizing the input signals.
- Wide Operating Voltage Range: Operates over a wide voltage range from 2 V to 6 V.
- Wide Operating Temperature Range: Functions across a temperature range of -40°C to +85°C.
- Supports Fanout up to 10 LSTTL Loads: Capable of driving up to 10 LSTTL (Low-power Schottky Transistor-Transistor Logic) loads.
- Significant Power Reduction: Offers reduced power consumption compared to LSTTL logic ICs.
- Schmitt-Trigger Inputs: Includes Schmitt-trigger inputs which help in rejecting noise and stabilizing the input signals.
- Balanced CMOS Push-Pull Outputs: The outputs are balanced, allowing the device to sink and source similar currents.
- Clamp Diode Structure: Features positive and negative clamping diodes to protect against voltage spikes.
Applications
- Combining Power Good Signals: Can be used to combine multiple power good signals into a single output.
- Enable Digital Signals: Suitable for enabling digital signals in various logic circuits.
Q & A
- What is the SN74HC7001DR used for?
The SN74HC7001DR is used as a quadruple 2-input AND gate with Schmitt-trigger inputs, performing the Boolean function Y = A ● B in positive logic.
- What is the operating voltage range of the SN74HC7001DR?
The device operates over a voltage range from 2 V to 6 V.
- What is the operating temperature range of the SN74HC7001DR?
The device functions across a temperature range of -40°C to +85°C.
- What type of inputs does the SN74HC7001DR have?
The device features Schmitt-trigger inputs which help in rejecting noise and stabilizing the input signals.
- How many AND gates does the SN74HC7001DR contain?
The device contains four independent 2-input AND gates.
- What is the significance of the Schmitt-trigger inputs in the SN74HC7001DR?
Schmitt-trigger inputs help in rejecting noise and stabilizing the input signals, ensuring reliable operation.
- What is the maximum fanout for the SN74HC7001DR?
The device can drive up to 10 LSTTL loads.
- How does the SN74HC7001DR compare to LSTTL logic ICs in terms of power consumption?
The SN74HC7001DR offers significant power reduction compared to LSTTL logic ICs.
- What are the typical applications of the SN74HC7001DR?
The device is typically used for combining power good signals and enabling digital signals in various logic circuits.
- Is the SN74HC7001DR still in production?
No, the SN74HC7001DR is now obsolete and no longer in production by Texas Instruments.
