Overview
The SN74HC08N is a quadruple 2-input AND gate integrated circuit manufactured by Texas Instruments. This device contains four independent AND gates, each performing the Boolean function Y = A ● B in positive logic. It is part of the 74HC series, known for its high-speed CMOS logic and low power consumption.
The SN74HC08N is available in various package types, including PDIP, SOIC, SSOP, and TSSOP, making it versatile for different design requirements. It operates over a wide voltage range of 2 V to 6 V and a temperature range of –40°C to +85°C, ensuring reliability in diverse environments.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage | –0.5 | 7 | V | |
| Input Clamp Current (VI < 0 or VI > VCC) | ±20 | mA | ||
| Output Clamp Current (VO < 0) | ±20 | mA | ||
| Continuous Output Current (VO = 0 to VCC) | ±25 | mA | ||
| Junction Temperature | 150 | °C | ||
| Storage Temperature | –60 | 150 | °C | |
| Propagation Delay (tpd) at VCC = 6 V | 8 | ns | ||
| Output High Voltage (VOH) at VCC = 6 V, IOH = –4 mA | 5.9 | 5.999 | V | |
| Output Low Voltage (VOL) at VCC = 6 V, IOL = 4 mA | 0.001 | 0.1 | V |
Key Features
- Buffered Inputs: Ensures stable input signals.
- Wide Operating Voltage Range: 2 V to 6 V, making it versatile for various applications.
- Wide Operating Temperature Range: –40°C to +85°C, suitable for harsh environments.
- High Fanout Capability: Supports up to 10 LSTTL loads.
- Low Power Consumption: Significant power reduction compared to LSTTL logic ICs.
- Balanced CMOS Push-Pull Outputs: Capable of sinking and sourcing similar currents, ensuring balanced output performance.
Applications
- Servers: Used in server systems for logical operations.
- LED Displays: Utilized in display systems requiring logical control.
- Network Switches: Employed in network devices for logical signal processing.
- I/O Expanders: Used to expand input/output capabilities in various systems.
- Base Station Processor Boards: Applied in telecommunications equipment for logical operations.
Q & A
- What is the SN74HC08N?
The SN74HC08N is a quadruple 2-input AND gate integrated circuit manufactured by Texas Instruments.
- What is the Boolean function performed by each gate in the SN74HC08N?
Each gate performs the Boolean function Y = A ● B in positive logic.
- What is the operating voltage range of the SN74HC08N?
The operating voltage range is 2 V to 6 V.
- What is the operating temperature range of the SN74HC08N?
The operating temperature range is –40°C to +85°C.
- How many LSTTL loads can the SN74HC08N support?
The SN74HC08N supports up to 10 LSTTL loads.
- What are the key features of the SN74HC08N?
Key features include buffered inputs, wide operating voltage and temperature ranges, high fanout capability, low power consumption, and balanced CMOS push-pull outputs.
- What are some common applications of the SN74HC08N?
Common applications include servers, LED displays, network switches, I/O expanders, and base station processor boards.
- What is the typical propagation delay of the SN74HC08N at VCC = 6 V?
The typical propagation delay is 8 ns at VCC = 6 V.
- How many independent AND gates are in the SN74HC08N?
The SN74HC08N contains four independent 2-input AND gates.
- What are the package options available for the SN74HC08N?
Package options include PDIP, SOIC, SSOP, and TSSOP.
