Overview
The 74HCT08DR2GH, manufactured by ON Semiconductor, is a quad 2-input AND gate logic IC. This device is fabricated using advanced silicon-gate CMOS technology, which offers low quiescent power consumption and a wide power supply range. It is designed to be input and output characteristic and pinout compatible with standard 74LS logic families, making it a versatile component for various electronic designs. The 74HCT08 is intended to interface between TTL and NMOS components and standard CMOS devices, and it can serve as a plug-in replacement for LS-TTL devices to reduce power consumption in existing designs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| DC Supply Voltage (VCC) | 4.5 to 5.5 | V |
| DC Input Voltage (Vin) | 0 to 5.5 | V |
| DC Output Voltage (Vout) | 0 to VCC + 0.5 | V |
| Minimum High-Level Input Voltage (VIH) | 2.0 | V |
| Maximum Low-Level Input Voltage (VIL) | 0.8 | V |
| Minimum High-Level Output Voltage (VOH) | 4.4 (at VCC = 4.5V), 5.4 (at VCC = 5.5V) | V |
| Propagation Delay (tPD) | 11 to 15 ns (typical at VCC = 4.5V, CL = 50pF) | ns |
| Operating Temperature | -55°C to +125°C | °C |
| Package Type | SOIC-14 (Halide-Free) | |
| ESD Protection | HBM: 2000 V, Machine Model: 200 V | V |
Key Features
- TTL and NMOS-compatible input levels, allowing for direct interface with CMOS, NMOS, and TTL devices.
- Low power consumption: 10 µW at DC.
- High fan-out capability: can drive up to 10 LS-TTL loads.
- High noise immunity characteristic of CMOS devices.
- Compliance with JEDEC standards (JESD8C and JESD7A).
- ESD protection: HBM 2000 V, Machine Model 200 V.
- Pb-free and halide-free packages available.
- Fast switching times: tPLH and tPHL = 12 ns (typical).
Applications
The 74HCT08DR2GH is suitable for a wide range of applications where low power consumption and compatibility with multiple logic families are essential. It can be used in:
- General logic circuits requiring AND gate functions.
- Interface circuits between TTL, NMOS, and CMOS devices.
- Power-efficient replacements for LS-TTL devices in existing designs.
- Embedded systems and microcontroller projects.
- Digital signal processing and control systems.
Q & A
- What is the primary function of the 74HCT08DR2GH?
The primary function of the 74HCT08DR2GH is to act as a quad 2-input AND gate.
- What is the operating voltage range of the 74HCT08DR2GH?
The operating voltage range is from 4.5 V to 5.5 V.
- What are the input and output compatibility of the 74HCT08DR2GH?
The device has TTL and NMOS-compatible input levels and can directly interface with CMOS, NMOS, and TTL devices.
- What is the propagation delay of the 74HCT08DR2GH?
The propagation delay is typically between 11 to 15 ns at VCC = 4.5V and CL = 50pF.
- What is the maximum fan-out of the 74HCT08DR2GH?
The device can drive up to 10 LS-TTL loads.
- Does the 74HCT08DR2GH have ESD protection?
Yes, it has ESD protection with HBM 2000 V and Machine Model 200 V.
- What are the package options available for the 74HCT08DR2GH?
The device is available in SOIC-14 (Halide-Free) and TSSOP-14 packages.
- Is the 74HCT08DR2GH Pb-free and halide-free?
Yes, the device is available in Pb-free and halide-free packages.
- What is the operating temperature range of the 74HCT08DR2GH?
The operating temperature range is from -55°C to +125°C.
- Can the 74HCT08DR2GH be used as a replacement for LS-TTL devices?
Yes, it can be used as a plug-in replacement for LS-TTL devices to reduce power consumption in existing designs.
