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Product Detailed Parameters
- Description：IC GATE AND 4CH 2-INP 14SOIC
- Series：74AS
- Mfr：Texas Instruments
- Package：Bulk,Tube
- Logic Type：AND Gate
- Number of Circuits：4
- Number of Inputs：2
- Features：-
- Voltage - Supply：4.5V ~ 5.5V
- Current - Quiescent (Max)：-
- Current - Output High, Low：2mA, 20mA
- Input Logic Level - Low：0.8V
- Input Logic Level - High：2V
- Max Propagation Delay @ V, Max CL：5.5ns @ 5V, 50pF
- Operating Temperature：0°C ~ 70°C
- Mounting Type：Surface Mount
- Supplier Device Package：14-SOIC
- Package / Case：14-SOIC (0.154", 3.90mm Width)
- Grade：-
- Qualification：-
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Overview
The SN74AS08D is a single-function logic gate integrated circuit manufactured by Texas Instruments. It belongs to the AS (Advanced Schottky) series and contains four independent 2-input positive AND gates. The device utilizes a 14-pin SOIC surface-mount package. Key electrical specifications include a low-level output current of 20 mA and a high-level output current of -2 mA. The propagation delay is specified at 5.5 ns. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature range from 0°C to +70°C.
Feature Summary
- Contains four independent 2-input AND logic functions within a single package.
- Features Advanced Schottky (AS) technology for high-speed switching performance.
- Provides robust low-level output drive capability suitable for standard TTL loads.
Applications
- Digital signal processing circuits requiring fast logical conjunction operations
- Microprocessor-based system address decoding logic
- General-purpose digital logic control interfaces
Procurement Notes
Verify the specific suffix 'D' confirms the SOIC-14 package variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation, as historical production runs may vary in environmental certification. Ensure the intended application falls within the specified 0°C to +70°C commercial temperature range to maintain guaranteed electrical parameters.
Selection Notes
Select this component when high-speed logic performance is required compared to standard 74-series devices. The AS series offers significantly faster propagation delays than HC or HCT counterparts. Consider the 14-pin SOIC footprint compatibility with existing PCB layouts. Evaluate power consumption requirements, as AS series devices typically draw higher quiescent current than CMOS alternatives.
Part Context
This part is a member of the Texas Instruments SN74AS08 family, which implements quad 2-input AND gates using Advanced Schottky technology. The 'D' suffix specifically denotes the plastic small-outline (SOIC) surface-mount package configuration. This family bridges the performance gap between older Schottky and newer Low-Voltage CMOS technologies.
Replacement Considerations
SN74AS08DR: Same functional logic and electrical characteristics but supplied in tape-and-reel packaging instead of tubes. SN74AS08NSR: Equivalent function in a narrow SOIC (NS) package variant.
