Overview
The SN74HCS00DR, produced by Texas Instruments, is a quadruple 2-input NAND gate integrated circuit with Schmitt-trigger inputs. This device is part of the HCS series, known for its high-speed CMOS logic family. It contains four independent NAND gates, each performing the Boolean function Y = A ● B in positive logic. The SN74HCS00DR is packaged in a 14-pin SOIC (Small Outline Integrated Circuit) package, making it suitable for a variety of digital logic applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Voltage Range | 2 | - | 6 | V |
| Supply Current (ICC) | - | 100 nA | - | nA |
| Input Leakage Current | - | ±100 nA | - | nA |
| Output Drive at 5 V | - | ±7.8 mA | - | mA |
| Ambient Temperature Range | -40 | - | 125 | °C |
| Propagation Delay (tpd) at 2 V | 15 | - | 36 | ns |
| Propagation Delay (tpd) at 4.5 V | 7 | - | 13 | ns |
| Transition Time (tt) at 2 V | 9 | - | 16 | ns |
| Transition Time (tt) at 4.5 V | 5 | - | 9 | ns |
| Input Capacitance (Ci) | - | 5 | - | pF |
| Power Dissipation Capacitance per Gate (Cpd) | - | 10 | - | pF |
Key Features
- Wide Operating Voltage Range: The device operates over a voltage range of 2 V to 6 V, making it versatile for various applications.
- Schmitt-Trigger Inputs: These inputs provide hysteresis, allowing the device to be highly tolerant of slow or noisy input signals and rejecting noise effectively.
- Low Power Consumption: The device has a typical supply current of 100 nA and input leakage current of ±100 nA, contributing to low power consumption.
- High Output Drive Capability: The device can drive up to ±7.8 mA at 5 V, ensuring robust output signals.
- Extended Ambient Temperature Range: The device operates over an ambient temperature range of –40°C to +125°C, making it suitable for harsh environments.
- Clamp Diode Structure: The inputs and outputs have both positive and negative clamping diodes, protecting the device from voltage spikes.
Applications
- Alarm or Tamper Detect Circuits: The SN74HCS00DR can be used in alarm systems and tamper detection circuits due to its ability to handle slow or noisy input signals.
- S-R Latch: The device can be configured to create active-low SR latches, which are useful in various digital logic circuits.
- General Digital Logic: The quadruple NAND gates make this device suitable for a wide range of digital logic applications where robust and reliable logic operations are required.
Q & A
- What is the operating voltage range of the SN74HCS00DR?
The operating voltage range is from 2 V to 6 V.
- What is the significance of Schmitt-trigger inputs in the SN74HCS00DR?
Schmitt-trigger inputs provide hysteresis, making the device tolerant to slow or noisy input signals and effective at noise rejection.
- What is the typical supply current of the SN74HCS00DR?
The typical supply current is 100 nA.
- What is the output drive capability of the SN74HCS00DR at 5 V?
The device can drive up to ±7.8 mA at 5 V.
- What is the ambient temperature range for the SN74HCS00DR?
The device operates over an ambient temperature range of –40°C to +125°C.
- How many independent NAND gates does the SN74HCS00DR contain?
The device contains four independent 2-input NAND gates.
- What type of package is the SN74HCS00DR available in?
The SN74HCS00DR is available in a 14-pin SOIC package.
- Can the SN74HCS00DR be used in alarm or tamper detect circuits?
Yes, it is suitable for alarm or tamper detect circuits due to its ability to handle slow or noisy input signals.
- How does the SN74HCS00DR protect against voltage spikes?
The device has both positive and negative clamping diodes on its inputs and outputs to protect against voltage spikes.
- What is the recommended maximum capacitive load for the SN74HCS00DR?
The recommended maximum capacitive load is 50 pF.
