Overview
The 74HCT240DB,112 is an integrated circuit produced by NXP Semiconductors, belonging to the 74HCT series. This component is an octal buffer/line driver with 3-state outputs, designed to operate as either two 4-bit buffers or one 8-bit buffer. It features inverting logic and is widely used in digital circuits for signal buffering and driving. The device is packaged in a 20-pin SSOP (Shrink Small Outline Package) and is suitable for surface mount applications.
Key Specifications
| Category | Attribute Value |
|---|---|
| Manufacturer | NXP USA Inc. |
| Logic Type | Buffer, Inverting |
| Number of Elements | 2 |
| Number of Bits per Element | 4 |
| Output Type | 3-State |
| Supply Voltage | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 20-SSOP (0.209", 5.30mm Width) |
| Current - Output High, Low | 6mA, 6mA |
Key Features
- Wide supply voltage range: 4.5V to 5.5V, although the broader 74HCT series supports 2.0V to 6.0V.
- CMOS low power dissipation.
- High noise immunity.
- 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).
- Two output enables (1OE and 2OE) controlling four of the 3-state outputs each.
- Inputs include clamp diodes for interfacing with voltages in excess of VCC.
Applications
The 74HCT240DB,112 is versatile and can be used in various digital circuit applications, including:
- Signal buffering and line driving in digital systems.
- Interface circuits where signal level translation is required.
- Bus drivers for data transmission lines.
- General-purpose logic circuits requiring inverting buffers.
Q & A
- What is the primary function of the 74HCT240DB,112? The primary function is to act as an octal buffer/line driver with 3-state outputs, capable of operating as two 4-bit buffers or one 8-bit buffer.
- What is the supply voltage range for the 74HCT240DB,112? The supply voltage range is 4.5V to 5.5V.
- What type of logic does the 74HCT240DB,112 use? It uses inverting logic.
- What is the package type of the 74HCT240DB,112? It is packaged in a 20-pin SSOP (Shrink Small Outline Package).
- What are the operating temperature ranges for the 74HCT240DB,112? The operating temperature ranges from -40°C to 125°C.
- How many output enables does the 74HCT240DB,112 have? It has two output enables (1OE and 2OE).
- What is the current output capability of the 74HCT240DB,112? The current output is 6mA for both high and low states.
- Does the 74HCT240DB,112 comply with any specific standards? Yes, it complies with JEDEC standards: JESD8C and JESD7A.
- What are some common applications of the 74HCT240DB,112? Common applications include signal buffering, line driving, interface circuits, and general-purpose logic circuits.
- What is the mounting type of the 74HCT240DB,112? It is a surface mount device.
