Overview
The SN74AHC1G08 device, produced by Texas Instruments, is a single 2-input positive-AND gate. This component performs the Boolean function Y = A ● B or Y = A + B in positive logic. It is designed to operate within a wide voltage range of 2 V to 5.5 V, making it versatile for various applications. The device is available in several package types, including DBV (SOT-23), DCK (SC70), and DRL (SOT), each with its own dimensions and thermal characteristics.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Conditions |
|---|---|---|---|---|---|
| Operating Free-Air Temperature (TA) | -55 | 125 | °C | ||
| Input Voltage (VI) | 0 | 5.5 | V | ||
| Output Voltage (VO) | 0 | VCC | V | ||
| High-Level Output Current (IOH) at VCC = 5 V | -8 | mA | |||
| Low-Level Output Current (IOL) at VCC = 5 V | 8 | mA | |||
| Propagation Delay Time (tPLH/tPHL) at VCC = 5 V, CL = 15 pF | 4.3 | 5.9 | 7.5 | ns | |
| Power Dissipation Capacitance (Cpd) at VCC = 5 V, f = 1 MHz | 18 | pF | No load | ||
| Junction-to-Ambient Thermal Resistance (RθJA) for DRL Package | 142 | °C/W |
Key Features
- Wide operating VCC range of 2 V to 5.5 V, allowing use in a broad range of systems.
- Low propagation delay, enabling fast switching and higher operation speeds.
- Low power consumption, making it suitable for portable and battery power-sensitive applications.
- ±8-mA output drive at 5 V.
- Schmitt-trigger action at all inputs, making the circuit tolerant for slower input rise and fall times.
- Latch-up performance exceeds 250 mA per JESD 17.
Applications
- Barcode Scanners
- Cable Solutions
- E-Books
- Embedded PCs
- Field Transmitter: Temperature or Pressure Sensors
- Fingerprint Biometrics
- HVAC: Heating, Ventilating, and Air Conditioning
- Network-Attached Storage (NAS)
- Server Motherboard and PSU
- Software Defined Radios (SDR)
- TV: High Definition (HDTV), LCD, and Digital
- Video Communications Systems
- Wireless Data Access Cards, Headsets, Keyboards, Mice, and LAN Cards
Q & A
- What is the function of the SN74AHC1G08 device?
The SN74AHC1G08 device is a single 2-input positive-AND gate that performs the Boolean function Y = A ● B or Y = A + B in positive logic.
- What is the operating voltage range of the SN74AHC1G08?
The operating voltage range is from 2 V to 5.5 V.
- What are the typical propagation delay times for the SN74AHC1G08 at VCC = 5 V?
The typical propagation delay times (tPLH/tPHL) at VCC = 5 V and CL = 15 pF are around 5.9 ns.
- What is the output drive capability of the SN74AHC1G08 at VCC = 5 V?
The output drive capability is ±8 mA at VCC = 5 V.
- What are the thermal characteristics of the DRL package?
The junction-to-ambient thermal resistance (RθJA) for the DRL package is approximately 142 °C/W.
- What are some common applications for the SN74AHC1G08?
Common applications include barcode scanners, embedded PCs, field transmitters, fingerprint biometrics, HVAC systems, and more.
- How should the power supply be configured for the SN74AHC1G08?
The power supply should be any voltage between the minimum and maximum supply voltage rating, and each VCC terminal should have a bypass capacitor to prevent power disturbances.
- What is the significance of Schmitt-trigger action in the SN74AHC1G08?
Schmitt-trigger action makes the circuit tolerant for slower input rise and fall times.
- What is the latch-up performance of the SN74AHC1G08?
The latch-up performance exceeds 250 mA per JESD 17.
- What are the package options available for the SN74AHC1G08?
The device is available in DBV (SOT-23), DCK (SC70), and DRL (SOT) packages.
- How should PCB traces be designed to minimize reflections?
PCB traces should be designed to maintain constant width and avoid sharp turns to minimize reflections.
