Overview
The 74HCT240DB,118, produced by NXP Semiconductors, is an 8-bit inverting buffer/line driver with 3-state outputs. This device can be utilized as two 4-bit buffers or one 8-bit buffer, making it versatile for various digital circuit applications. It features two output enables (1OE and 2OE), each controlling four of the 3-state outputs. A HIGH on the nOE input causes the outputs to assume a high-impedance OFF-state, which is useful for interfacing with other logic circuits.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VCC Supply Voltage | 2.0 | 6.0 | V | ||
| VIH HIGH-level input voltage | VCC = 4.5 V to 5.5 V | 2.0 | 1.6 | 2.0 | V |
| VIL LOW-level input voltage | VCC = 4.5 V to 5.5 V | 0.8 | 1.2 | V | |
| VOH HIGH-level output voltage | IO = -6 mA, VCC = 4.5 V | 3.84 | 4.32 | 3.98 | V |
| VOL LOW-level output voltage | IO = 6.0 mA, VCC = 4.5 V | 0.16 | 0.26 | 0.33 | V |
| ICC Supply current | VI = VCC or GND; IO = 0 A; VCC = 6.0 V | 160 | μA | ||
| tpd Propagation delay | VCC = 4.5 V | 11 | 20 | ns | |
| ten Enable time | nOE to nYn; VCC = 4.5 V | 13 | 30 | ns | |
| tdis Disable time | nOE to nYn; VCC = 4.5 V | 13 | 25 | ns | |
| Operating Temperature | -40 | 125 | °C |
Key Features
- Wide Supply Voltage Range: Operates from 2.0 V to 6.0 V, making it compatible with various voltage levels in digital circuits.
- CMOS Low Power Dissipation: Low power consumption, which is beneficial for energy-efficient designs.
- High Noise Immunity: Provides high noise immunity, ensuring reliable operation in noisy environments.
- 3-State Outputs: Features 3-state outputs controlled by two output enables (1OE and 2OE), allowing for flexible output management.
- Latch-Up Performance: Exceeds 100 mA per JESD 78 Class II Level B, ensuring robust latch-up performance.
- Compliance with JEDEC Standards: Complies with JESD8C (2.7 V to 3.6 V) and JESD7A (2.0 V to 6.0 V) standards.
Applications
- Buffering and Line Driving: Ideal for buffering and driving signals in digital circuits, ensuring signal integrity over long distances.
- Interface Circuits: Useful in interface circuits where signal levels need to be adjusted or buffered).
- Microcontroller and Microprocessor Systems: Can be used in systems requiring data buffering and line driving between different components).
- Automotive and Industrial Applications: Suitable for automotive and industrial environments due to its robust operating temperature range and high noise immunity).
Q & A
- What is the primary function of the 74HCT240DB,118?
The primary function is to act as an 8-bit inverting buffer/line driver with 3-state outputs.
- What is the supply voltage range for the 74HCT240DB,118?
The device operates from 2.0 V to 6.0 V.
- How many output enables does the 74HCT240DB,118 have?
It has two output enables (1OE and 2OE), each controlling four of the 3-state outputs.
- What is the propagation delay of the 74HCT240DB,118 at VCC = 4.5 V?
The propagation delay is between 11 ns and 20 ns.
- Is the 74HCT240DB,118 compliant with any JEDEC standards?
Yes, it complies with JESD8C (2.7 V to 3.6 V) and JESD7A (2.0 V to 6.0 V) standards.
- What is the operating temperature range of the 74HCT240DB,118?
The operating temperature range is from -40 °C to 125 °C.
- Does the 74HCT240DB,118 have any special features for noise immunity?
Yes, it has high noise immunity, ensuring reliable operation in noisy environments.
- Can the 74HCT240DB,118 be used in automotive applications?
Yes, it is suitable for automotive applications due to its robust operating temperature range and high noise immunity.
- What is the package type of the 74HCT240DB,118?
The package type is SSOP20 (Small Outline Package with 20 pins).
- Is the 74HCT240DB,118 RoHS compliant?
Yes, it is RoHS compliant.
