Overview
The 74HCT14DB,112 is a hex inverter with Schmitt-trigger inputs, manufactured by NXP Semiconductors (now known as Nexperia). This device is part of the 74HC/74HCT family and is designed to provide reliable and efficient logic-level conversion and signal conditioning. It features six inverting Schmitt triggers, which transform slowly changing input signals into sharply defined, jitter-free output signals. This component is compatible with TTL logic levels and offers high noise immunity, making it suitable for a variety of applications in challenging electrical environments.
Key Specifications
| Parameter | Conditions | Min | Typ | Max |
|---|---|---|---|---|
| Supply Voltage (VCC) | 2.0 V | 6.0 V | ||
| Propagation Delay (tpd) | VCC = 4.5 V, CL = 50 pF | 15 ns | 25 ns | 31 ns |
| Transition Time (tt) | VCC = 4.5 V, CL = 50 pF | 7 ns | 15 ns | 19 ns |
| Input Leakage Current (II) | VI = VCC or GND, VCC = 6.0 V | ±0.1 μA | ±1.0 μA | |
| Supply Current (ICC) | VI = VCC or GND, IO = 0 A, VCC = 6.0 V | 2.0 μA | 40 μA | |
| Input Capacitance (CI) | 3.5 pF | |||
| High-Level Output Voltage (VOH) | VI = VT+ or VT-, VCC = 4.5 V, IO = -20 μA | 4.4 V | 4.5 V | |
| Hysteresis Voltage (VH) | VCC = 4.5 V | 0.4 V | 0.98 V | 1.4 V |
| Positive-Going Threshold Voltage (VT+) | VCC = 4.5 V | 1.2 V | 1.41 V | 1.9 V |
| Negative-Going Threshold Voltage (VT-) | VCC = 4.5 V | 0.5 V | 0.85 V | 1.2 V |
| Package | SSOP14 (SOT337-1) |
Key Features
- Wide supply voltage range from 2.0 to 6.0 V
- CMOS low power dissipation
- High noise immunity
- Unlimited input rise and fall times
- Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
- Complies with JEDEC standards: JESD8C (2.7 V to 3.6 V) and JESD7A (2.0 V to 6.0 V)
- ESD protection: HBM (ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V) and CDM (ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V)
- Multiple package options
- Specified from -40 °C to +85 °C and from -40 °C to +125 °C
Applications
- Wave and pulse shapers
- Astable multivibrators
- Monostable multivibrators
- Telecommunications
- Consumer electronics
- Automotive systems
- Data processing systems
- Control systems
Q & A
- What is the 74HCT14DB,112 used for?
The 74HCT14DB,112 is used for logic-level conversion and signal conditioning, featuring six inverting Schmitt triggers.
- What is the supply voltage range of the 74HCT14DB,112?
The supply voltage range is from 2.0 to 6.0 V.
- What are the key benefits of the Schmitt-trigger inputs?
Schmitt-trigger inputs transform slowly changing input signals into sharply defined, jitter-free output signals and provide high noise immunity.
- What are the typical applications of the 74HCT14DB,112?
Typical applications include wave and pulse shapers, astable and monostable multivibrators, telecommunications, consumer electronics, automotive systems, data processing systems, and control systems.
- What is the package type of the 74HCT14DB,112?
The package type is SSOP14 (SOT337-1).
- Does the 74HCT14DB,112 have ESD protection?
Yes, it has ESD protection: HBM (ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V) and CDM (ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V).
- What are the operating temperature ranges for the 74HCT14DB,112?
The device is specified from -40 °C to +85 °C and from -40 °C to +125 °C.
- Is the 74HCT14DB,112 compliant with any industry standards?
Yes, it complies with JEDEC standards: JESD8C (2.7 V to 3.6 V) and JESD7A (2.0 V to 6.0 V).
- What is the typical propagation delay of the 74HCT14DB,112?
The typical propagation delay is 25 ns at VCC = 4.5 V and CL = 50 pF.
- Does the 74HCT14DB,112 have any special features for input protection?
Yes, it includes clamp diodes that enable the use of current limiting resistors to interface inputs to voltages in excess of VCC.
