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Product Detailed Parameters
- Description：IC GATE NAND 4CH 2-INP 14-SO
- Series：*
- Mfr：Texas Instruments
- Package：Bulk
- Logic Type：-
- Number of Circuits：-
- Number of Inputs：-
- Features：-
- Voltage - Supply：-
- Current - Quiescent (Max)：-
- Current - Output High, Low：-
- Input Logic Level - Low：-
- Input Logic Level - High：-
- Max Propagation Delay @ V, Max CL：-
- Operating Temperature：-
- Mounting Type：-
- Supplier Device Package：-
- Package / Case：-
- Grade：-
- Qualification：-
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Overview
The SN7438NS is a quad two-input NAND gate integrated circuit manufactured by Texas Instruments. It belongs to the standard 7400 logic series and features open-collector outputs, allowing for flexible interfacing with various load types. The device operates within a supply voltage range of 4.75V to 5.25V and supports propagation delays up to 22ns at 5V with a 45pF load. Designed for through-hole mounting, it is housed in a 14-pin DIP package and functions reliably across an operating temperature range of 0°C to 70°C.
Feature Summary
- Contains four independent two-input NAND logic gates
- Features open-collector outputs suitable for wired-AND configurations
- Supports TTL input levels and provides high low-level output current capability
Applications
- General-purpose digital logic switching applications
- Wired-OR or wired-AND bus line implementations
- Interface circuits requiring variable output voltage levels
Procurement Notes
Verify the specific suffix 'N' against official Texas Instruments documentation to confirm the PDIP-14 package type and commercial grade temperature rating. Ensure compatibility with standard 5V logic systems and check for RoHS compliance status as defined in the latest datasheet revision.
Selection Notes
Select this component when open-collector NAND functionality is required for driving loads beyond standard logic limits. It serves as a direct replacement for other 74LS38 variants where pin-compatible through-hole packaging is necessary for legacy board designs.
Part Context
This part is a member of the industry-standard 7400 family of logic ICs. It provides basic NAND functionality with open-collector outputs, distinguishing it from standard push-pull logic gates. The SN7438NS variant specifically denotes the through-hole DIP package configuration offered by Texas Instruments.
