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Product Detailed Parameters
- Description：IC GATE NOR 6CH 2-INP 20SOIC
- 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：Surface Mount
- Supplier Device Package：20-SOIC
- Package / Case：20-SOIC (0.295", 7.50mm Width)
- Grade：-
- Qualification：-
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Overview
The SN74ALS805ADW is a hex 2-input NOR driver from the Texas Instruments ALS logic family, housed in a 20-pin SOIC (DW) package. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature range of 0°C to 70°C. The device features high capacitive-drive capability with a low-level output current of 24 mA and a high-level output current of -15 mA. Typical propagation delay times are specified as 9 ns maximum for tPLH and 8 ns maximum for tPHL under standard load conditions.
Feature Summary
- Contains six independent 2-input NOR drivers performing Boolean functions Y = A + B or Y = A • B in positive logic.
- Provides high capacitive-drive capability suitable for driving heavy loads.
Applications
- High-speed digital logic circuits requiring NOR functionality.
- Bus driver applications utilizing the high drive strength.
- General-purpose logic systems operating at standard TTL voltages.
Procurement Notes
Verify that the specific ordering suffix matches the required package type and environmental rating. Confirm RoHS compliance status and lead finish details against the latest manufacturer documentation. Ensure the component meets the intended operating temperature range requirements for the target application environment before finalizing procurement.
Selection Notes
Select this component when six independent 2-input NOR gates are required in a single surface-mount package. Consider the ALS series characteristics regarding speed and power dissipation relative to system constraints. Verify pin compatibility if replacing legacy through-hole DIP versions with the SOIC variant.
Part Context
This part belongs to the SN74ALS805A family of hex 2-input NOR drivers manufactured by Texas Instruments. It is designed for use in commercial temperature ranges and offers a compact surface-mount alternative to larger DIP packages while maintaining the electrical performance standards of the ALS logic family.
Replacement Considerations
SN74ALS805ADWR
FAQ
What is the Boolean function performed by the SN74ALS805ADW?
The device performs the Boolean function Y = A + B or Y = A • B in positive logic.
Does the SN74ALS805ADW have open-collector outputs?
No, the SN74ALS805ADW features standard totem-pole outputs, unlike the SN74ALS09 which has open-collector outputs.
