Overview
The 74HC7540D,112 is an 8-bit inverting buffer/line driver with Schmitt-trigger inputs and 3-state outputs, produced by Nexperia USA Inc. This device is part of the 74HC/74HCT family and is designed to provide high noise immunity and low power dissipation. It features two output enables (OE1 and OE2) that allow the outputs to assume a high-impedance OFF-state when activated. The Schmitt trigger inputs help in transforming slowly changing input signals into sharply defined, jitter-free output signals.
Key Specifications
| Parameter | Value |
|---|---|
| Type Number | 74HC7540D |
| Orderable Part Number | 74HC7540D,112 (933967860112) |
| Package | SO20 (SOT163-1) |
| VCC (V) | 2.0 - 6.0 |
| Logic Switching Levels | CMOS |
| Output Drive Capability (mA) | ± 7.8 |
| Maximum Frequency (MHz) | 36 |
| Number of Bits | 8 |
| Power Dissipation Considerations | Low |
| Operating Temperature Range (°C) | -40 to +125 |
| Thermal Resistance (K/W) | 69 (j-a), 45 (j-c) |
| ESD Protection | HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V |
Key Features
- Schmitt Trigger Inputs: Transform slowly changing input signals into sharply defined, jitter-free output signals.
- 3-State Outputs: Outputs can be set to a high-impedance OFF-state using the output enables (OE1 and OE2).
- Wide Supply Voltage Range: Operates from 2.0 V to 6.0 V.
- Low Power Dissipation: CMOS technology ensures low power consumption.
- High Noise Immunity: Enhanced noise immunity due to Schmitt trigger inputs.
- ESD Protection: Compliant with HBM and CDM standards, providing robust protection against electrostatic discharge.
- Latch-Up Performance: Exceeds 100 mA per JESD 78 Class II Level B.
Applications
The 74HC7540D is versatile and can be used in a variety of applications across different industries, including:
- Automotive: For signal buffering and line driving in automotive systems.
- Industrial: In industrial control systems and automation.
- Consumer Electronics: For signal conditioning and buffering in consumer electronic devices.
- Mobile and Wearables: Due to its low power consumption, it is suitable for mobile and wearable devices.
- Computing and Power Systems: For signal buffering and line driving in computing and power management systems.
Q & A
- What is the primary function of the 74HC7540D?
The primary function of the 74HC7540D is to act as an 8-bit inverting buffer/line driver with Schmitt-trigger inputs and 3-state outputs.
- What is the supply voltage range for the 74HC7540D?
The supply voltage range for the 74HC7540D is from 2.0 V to 6.0 V.
- What type of logic switching levels does the 74HC7540D support?
The 74HC7540D supports CMOS logic switching levels.
- What is the maximum frequency of operation for the 74HC7540D?
The maximum frequency of operation for the 74HC7540D is 36 MHz.
- What is the purpose of the Schmitt trigger inputs in the 74HC7540D?
The Schmitt trigger inputs transform slowly changing input signals into sharply defined, jitter-free output signals.
- How do the output enables (OE1 and OE2) function in the 74HC7540D?
The output enables (OE1 and OE2) cause the outputs to assume a high-impedance OFF-state when activated.
- What is the ESD protection level for the 74HC7540D?
The 74HC7540D exceeds 2000 V for HBM and 1000 V for CDM according to ANSI/ESDA/JEDEC standards.
- What is the operating temperature range for the 74HC7540D?
The operating temperature range for the 74HC7540D is from -40 °C to +125 °C.
- What type of package is the 74HC7540D,112 available in?
The 74HC7540D,112 is available in the SO20 (SOT163-1) package.
- Is the 74HC7540D,112 RoHS compliant?
Yes, the 74HC7540D,112 is RoHS compliant.
