Overview
The 74HCT14PW,112 is a hex inverter with Schmitt-trigger inputs, produced by NXP Semiconductors (now part of Nexperia). This device is designed to transform slowly changing input signals into sharply defined, jitter-free output signals. It features reduced input threshold levels, allowing it to interface with TTL logic levels. The inclusion of clamp diodes enables the use of current limiting resistors to interface inputs to voltages in excess of VCC. This component is part of a broader family of logic ICs known for their reliability and versatility in various electronic designs.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC (Supply Voltage) | 2.0 | - | 6.0 | V |
| VOH (HIGH-level output voltage) | 1.9 | 2.0 | - | V (VCC = 2.0 V, IO = -20 μA) |
| VOH (HIGH-level output voltage) | 4.4 | 4.5 | - | V (VCC = 4.5 V, IO = -20 μA) |
| VOH (HIGH-level output voltage) | 5.9 | 6.0 | - | V (VCC = 6.0 V, IO = -20 μA) |
| VOL (LOW-level output voltage) | - | - | 0.1 | V (VCC = 4.5 V, IO = 20 μA) |
| tpd (Propagation Delay) | 20 | - | 43 | ns (VCC = 4.5 V) |
| tt (Transition Time) | 7 | - | 19 | ns (VCC = 4.5 V) |
| CI (Input Capacitance) | - | - | 3.5 | pF |
| Tamb (Operating Temperature) | -40 | - | 125 | °C |
Key Features
- Hex inverter with Schmitt-trigger inputs, transforming slowly changing input signals into sharply defined, jitter-free output signals.
- Reduced input threshold levels to allow interfacing to TTL logic levels.
- Inclusion of clamp diodes to enable the use of current limiting resistors for inputs exceeding VCC.
- 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.
- ESD protection: HBM exceeds 2000 V, CDM exceeds 1000 V.
- Complies with JEDEC standards: JESD8C (2.7 V to 3.6 V) and JESD7A (2.0 V to 6.0 V).
Applications
- Wave and pulse shapers.
- Astable multivibrators.
- Monostable multivibrators.
- General-purpose logic applications requiring Schmitt-trigger inputs.
- Automotive, industrial, power, computing, consumer, mobile, and wearable electronics.
Q & A
- What is the primary function of the 74HCT14PW?
The primary function of the 74HCT14PW is to act as a hex inverter with Schmitt-trigger inputs, converting slowly changing input signals into sharply defined, jitter-free output signals.
- What is the supply voltage range for the 74HCT14PW?
The supply voltage range for the 74HCT14PW is from 2.0 to 6.0 V.
- What type of logic levels can the 74HCT14PW interface with?
The 74HCT14PW can interface with TTL logic levels due to its reduced input threshold levels.
- What is the significance of the clamp diodes in the 74HCT14PW?
The clamp diodes enable the use of current limiting resistors to interface inputs to voltages in excess of VCC.
- What are the ESD protection levels for the 74HCT14PW?
The 74HCT14PW has ESD protection exceeding 2000 V for HBM and 1000 V for CDM.
- What are the operating temperature ranges for the 74HCT14PW?
The operating temperature range for the 74HCT14PW is from -40 °C to +125 °C.
- What are some common applications of the 74HCT14PW?
Common applications include wave and pulse shapers, astable and monostable multivibrators, and general-purpose logic applications requiring Schmitt-trigger inputs.
- Does the 74HCT14PW comply with any specific 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 package type for the 74HCT14PW?
The 74HCT14PW is available in a TSSOP14 (SOT402-1) package.
- What is the power dissipation characteristic of the 74HCT14PW?
The 74HCT14PW has low CMOS power dissipation.
