Overview
The MC74HC14ADT, produced by Onsemi, is a high-performance silicon-gate CMOS hex Schmitt-trigger inverter. This device is designed to enhance the reliability and performance of digital circuits by 'squaring up' slow input rise and fall times, making it particularly useful in noisy environments. The MC74HC14ADT is part of the HC14A series, which is known for its compatibility with various logic families including CMOS, NMOS, and TTL.
Key Specifications
| Parameter | Condition | Unit | Min | Typ | Max |
|---|---|---|---|---|---|
| VCC (DC Supply Voltage) | - | V | -0.5 | - | 6.5 |
| VIN (DC Input Voltage) | - | V | -0.5 | - | VCC + 0.5 |
| VOUT (DC Output Voltage) | - | V | -0.5 | - | VCC + 0.5 |
| VT+ max (Maximum Positive-Going Input Threshold Voltage) | VCC = 2.0 to 6.0 V | V | 1.0 | - | 4.20 |
| VT- max (Maximum Negative-Going Input Threshold Voltage) | VCC = 2.0 to 6.0 V | V | 0.9 | - | 2.6 |
| tPLH, tPHL (Maximum Propagation Delay) | VCC = 2.0 to 6.0 V, CL = 50 pF | ns | 75 | - | 110 |
| tTLH, tTHL (Maximum Output Transition Time) | VCC = 2.0 to 6.0 V, CL = 50 pF | ns | 75 | - | 110 |
| Cin (Maximum Input Capacitance) | - | pF | - | - | 10 |
| IIN (DC Input Current, per Pin) | - | mA | - | - | ±20 |
| IOUT (DC Output Current, per Pin) | - | mA | - | - | ±25 |
| ICC (DC Supply Current, VCC and GND Pins) | - | mA | - | - | ±50 |
| TSTG (Storage Temperature) | - | °C | -65 | - | 150 |
Key Features
- Output Drive Capability: 10 LSTTL Loads
- Outputs Directly Interface to CMOS, NMOS, and TTL
- Operating Voltage Range: 2.0 to 6.0 V
- Low Input Current: 1.0 µA
- High Noise Immunity Characteristic of CMOS Devices
- In Compliance With the JEDEC Standard No. 7.0 A Requirements
- Chip Complexity: 60 FETs or 15 Equivalent Gates
Applications
The MC74HC14ADT is versatile and can be used in a variety of applications, including:
- Noisy environments where high noise immunity is required.
- Circuits that need to 'square up' slow input rise and fall times.
- Interfacing between different logic families such as CMOS, NMOS, and TTL.
- Level conversion and signal conditioning in digital circuits.
Q & A
- What is the operating voltage range of the MC74HC14ADT?
The operating voltage range of the MC74HC14ADT is 2.0 to 6.0 V.
- What is the output drive capability of the MC74HC14ADT?
The output drive capability of the MC74HC14ADT is 10 LSTTL loads.
- What is the maximum propagation delay of the MC74HC14ADT?
The maximum propagation delay of the MC74HC14ADT is up to 110 ns for VCC = 2.0 to 6.0 V and CL = 50 pF.
- What is the maximum input current per pin for the MC74HC14ADT?
The maximum input current per pin for the MC74HC14ADT is ±20 mA.
- What is the storage temperature range for the MC74HC14ADT?
The storage temperature range for the MC74HC14ADT is -65°C to 150°C.
- Is the MC74HC14ADT compatible with TTL and NMOS inputs?
- What is the purpose of the hysteresis voltage in the MC74HC14ADT?
The hysteresis voltage in the MC74HC14ADT helps to improve noise immunity by providing a threshold voltage that prevents the output from switching due to minor input voltage fluctuations.
- How many equivalent gates does the MC74HC14ADT contain?
The MC74HC14ADT contains 60 FETs or 15 equivalent gates.
- What package types are available for the MC74HC14ADT?
The MC74HC14ADT is available in TSSOP-14 and SOIC-14 packages.
- Is the MC74HC14ADT compliant with any specific industry standards?
