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Product Detailed Parameters
- Description：IC GATE NOR 6CH 2-INP 20DIP
- Series：74ALS
- Mfr：Texas Instruments
- Package：Tube,Tube
- Logic Type：NOR Gate
- Number of Circuits：6
- Number of Inputs：2
- Features：-
- Voltage - Supply：4.5V ~ 5.5V
- Current - Quiescent (Max)：-
- Current - Output High, Low：15mA, 24mA
- Input Logic Level - Low：0.8V
- Input Logic Level - High：2V
- Max Propagation Delay @ V, Max CL：8ns @ 5V, 50pF
- Operating Temperature：0°C ~ 70°C
- Mounting Type：Through Hole
- Supplier Device Package：20-PDIP
- Package / Case：20-DIP (0.300", 7.62mm)
- Grade：-
- Qualification：-
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Overview
The SN74ALS805AN is a Hex 2-input NOR driver from the Texas Instruments SN74ALS series. It operates on a single supply voltage ranging from 4.5 V to 5.5 V. The device provides high capacitive-drive capability with a low-level output current of 24 mA and a high-level output current of -15 mA at 5 V. Propagation delay times are specified between 2 ns and 12 ns depending on the transition direction, measured under a 50 pF load condition. The component functions within an operating temperature range of 0°C to 70°C.
Feature Summary
- Contains six independent 2-input NOR drivers performing Boolean logic functions
- Features high capacitive-drive capability for robust signal transmission
- Provides standard TTL-compatible input and output characteristics
Applications
- High-speed digital logic circuits requiring NOR operations
- Bus-oriented systems utilizing driver capabilities
- Clock distribution networks in consumer electronics
Procurement Notes
Verify the specific ordering suffix 'N' confirms the Plastic DIP package type before procurement. Confirm that the device status is listed as active or life-buy if long-term availability is required. Ensure the manufacturer is identified as Texas Instruments to guarantee compliance with original datasheet specifications.
Selection Notes
Select this component when hex NOR functionality with moderate drive strength is required. The ALS series offers a balance between power consumption and speed compared to standard TTL. Consider the AS variant if higher drive currents and faster switching speeds are necessary for the application design.
Part Context
This part belongs to the SN74ALS family of high-speed低功耗 Schottky logic devices. It serves as a buffer and driver within the broader logic IC portfolio, providing standardized interfaces for digital systems. The SN74ALS805A variant specifically addresses applications needing multiple independent NOR gates with enhanced output drive capabilities.
Replacement Considerations
SN74ALS805ADW (SOIC Package)
FAQ
What is the maximum low-level output current?
The maximum low-level output current is 24 mA.
Does the device support military temperature ranges?
No, the SN74ALS805A is characterized for operation from 0°C to 70°C. Military grades use the SN54 prefix.
