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Product Detailed Parameters
- Description：IC D-TYPE TRANSP SGL 8:8 20DIP
- Series：74ALS
- Mfr：Texas Instruments
- Package：Tube
- Logic Type：D-Type Transparent Latch
- Circuit：8:08
- Output Type：Tri-State
- Voltage - Supply：4.5V ~ 5.5V
- Independent Circuits：1
- Delay Time - Propagation：2ns
- Current - Output High, Low：2.6mA, 24mA
- Operating Temperature：0°C ~ 70°C
- Mounting Type：Through Hole
- Package / Case：20-DIP (0.300", 7.62mm)
- Supplier Device Package：20-PDIP
- Grade：-
- Qualification：-
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Overview
The SN74ALS573CNG4 is an octal D-type transparent latch with tri-state outputs manufactured by Texas Instruments. It belongs to the ALS logic series and features a non-inverting polarity. The device operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical parameters include a propagation delay of 14 ns, a low-level output current of 32 mA, and a high-level output current of -2.6 mA. It contains eight independent circuits and functions across a temperature range of 0°C to +70°C.
Feature Summary
- Octal D-type transparent latch architecture with tri-state outputs
- ALS logic series for optimized performance
- Non-inverting signal polarity
Applications
- Bus-oriented memory mapping
- Registering wide data words
- Driving bus lines
Procurement Notes
Verify the package type matches the required 20-PDIP configuration. Confirm RoHS compliance status as indicated in official documentation. Ensure the operating temperature range meets system requirements. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components. Check datasheet revisions for any updates to electrical characteristics or pin configurations.
Selection Notes
Select this component when an octal latch with tri-state capability is required for bus applications. The ALS series offers a balance of speed and power consumption suitable for general-purpose digital systems. Verify that the 5V supply voltage aligns with the target circuit design. Consider the 20-pin DIP package for through-hole mounting constraints.
Part Context
This part is part of the SN74ALS573 family from Texas Instruments. It serves as a standard solution for latching and buffering octal data in digital electronics. The CNG4 suffix typically denotes a specific package and environmental compliance variant within the broader product line.
Replacement Considerations
SN74ALS573CN is a comparable DIP-20 variant. SN74ALS573CDBR is a SSOP-20 surface-mount alternative. Verify pin compatibility and electrical specifications before substitution.
