Overview
The 74HCT126D,653 is a quad buffer/line driver integrated circuit produced by Nexperia USA Inc. This component is part of the 74HCT series, which is compatible with TTL (Transistor-Transistor Logic) input levels. It features 3-state outputs controlled by the output enable inputs (nOE), allowing the outputs to assume a high-impedance OFF-state when nOE is LOW. This IC is widely used in digital logic circuits for buffering and driving signals.
Key Specifications
| Parameter | Value |
|---|---|
| VCC (V) | 4.5 - 5.5 |
| Logic Switching Levels | TTL |
| Output Drive Capability (mA) | ± 6 |
| fmax (MHz) | 36 |
| Number of Bits | 4 |
| Power Dissipation Considerations | Low |
| Tamb (°C) | -40 to +125 |
| Rth(j-a) (K/W) | 88 |
| Rth(j-c) (K/W) | 45 |
| Package Name | SO14 (SOT108-1) |
Key Features
- Quad buffer/line driver with 3-state outputs controlled by the output enable inputs (nOE).
- Complies with JEDEC standard no. 7A.
- Input levels: TTL level for 74HCT126.
- ESD protection: HBM JESD22-A114F exceeds 2000 V, MM JESD22-A115-A exceeds 200 V.
- Multiple package options: SO14 and TSSOP14.
- Specified from -40°C to +125°C.
- Inputs include clamp diodes, enabling the use of current limiting resistors to interface inputs to voltages in excess of VCC.
Applications
The 74HCT126D,653 is suitable for various digital logic applications, including:
- Buffering and driving signals in digital circuits.
- Interface circuits where signal levels need to be matched or amplified.
- Systems requiring 3-state output control for bus management.
- General-purpose logic circuits where TTL compatibility is necessary.
Q & A
- What is the voltage range for VCC of the 74HCT126D,653? The voltage range for VCC is 4.5 V to 5.5 V.
- What type of logic switching levels does the 74HCT126D,653 support? It supports TTL (Transistor-Transistor Logic) levels.
- What is the output drive capability of the 74HCT126D,653? The output drive capability is ± 6 mA.
- What is the maximum frequency (fmax) of the 74HCT126D,653? The maximum frequency is 36 MHz.
- How many bits does the 74HCT126D,653 have? It has 4 bits.
- What is the operating temperature range of the 74HCT126D,653? The operating temperature range is -40°C to +125°C.
- What package types are available for the 74HCT126D,653? It is available in SO14 (SOT108-1) and TSSOP14 (SOT402-1) packages.
- Does the 74HCT126D,653 have ESD protection? Yes, it has ESD protection: HBM JESD22-A114F exceeds 2000 V, MM JESD22-A115-A exceeds 200 V.
- What is the purpose of the output enable inputs (nOE) in the 74HCT126D,653? The output enable inputs (nOE) control the 3-state outputs, allowing them to assume a high-impedance OFF-state when nOE is LOW).
- Is the 74HCT126D,653 compliant with any specific JEDEC standard? Yes, it complies with JEDEC standard no. 7A).
