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Product Detailed Parameters
- Description：IC INVERTER 6CH 1-INP 14SSOP
- Series：74AHC
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Logic Type：Inverter
- Number of Circuits：6
- Number of Inputs：1
- Features：Open Drain
- Voltage - Supply：2V ~ 5.5V
- Current - Quiescent (Max)：2 µA
- Current - Output High, Low：-, 8mA
- Input Logic Level - Low：0.5V ~ 1.65V
- Input Logic Level - High：1.5V ~ 3.85V
- Max Propagation Delay @ V, Max CL：7.5ns @ 5V, 50pF
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Supplier Device Package：14-SSOP
- Package / Case：14-SSOP (0.209", 5.30mm Width)
- Grade：-
- Qualification：-
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Overview
The SN74AHC05DBR is a hex inverter with open-drain outputs manufactured by Texas Instruments. It operates within a supply voltage range of 2 V to 5.5 V and supports an operating free-air temperature from -40°C to 85°C. The device implements the Boolean function Y = A bar. Its open-drain architecture requires external pull-up resistors for proper operation, enabling active-low wired-OR or active-high wired-AND configurations when connected to other open-drain outputs.
Feature Summary
- Contains six independent inverters performing the Boolean function Y = A bar
- Features open-drain outputs that require external pull-up resistors
- Supports active-low wired-OR or active-high wired-AND logic functions
Applications
- Implementing active-low wired-OR logic connections
- Implementing active-high wired-AND logic connections
- General-purpose digital signal inversion in CMOS circuits
Procurement Notes
Verify the specific ordering suffix 'DBR' corresponds to the SSOP package and tape-and-reel packaging format. Confirm the RoHS compliance status and lead finish details against the latest TI Package Option Addendum. Ensure the procurement matches the required operating temperature range of -40°C to 85°C for commercial applications.
Selection Notes
Select this component when six independent inverters with open-drain outputs are required for wired-logic implementations. It is suitable for designs needing compatibility with various pull-up voltages due to its wide 2-V to 5.5-V supply range. Consider the SSOP package constraints and thermal impedance characteristics for PCB layout planning.
Part Context
This part belongs to the SN74AHC05 family of hex inverters with open-drain outputs. It is distinct from standard push-pull output inverters as it necessitates external pull-up components. The DBR suffix specifically denotes the SSOP package type with tape-and-reel shipping, differentiating it from tube-packaged variants like the SN74AHC05D.
Replacement Considerations
SN74AHC05DBRE4
FAQ
Why are external pull-up resistors required for the SN74AHC05DBR?
The device features open-drain outputs which lack internal high-side drivers. External pull-up resistors are necessary to establish a high logic level at the output pins.
What logic functions can be achieved using the open-drain outputs?
Connecting multiple open-drain outputs together allows for the implementation of active-low wired-OR or active-high wired-AND functions.
