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Product Detailed Parameters
- Description：IC BUFFER NON-INVERT 5.5V 20SO
- Series：74ALS
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Logic Type：Buffer, Non-Inverting
- Number of Elements：2
- Number of Bits per Element：4
- Input Type：-
- Output Type：3-State
- Current - Output High, Low：15mA, 24mA
- Voltage - Supply：4.5V ~ 5.5V
- Operating Temperature：0°C ~ 70°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-SOIC (0.209", 5.30mm Width)
- Supplier Device Package：20-SO
- Grade：-
- Qualification：-
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Overview
The SN74ALS244CNSR is an octal buffer and line driver featuring three-state outputs, manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V. The device provides high-level output current of -15 mA and low-level output current of 24 mA. Quiescent current is specified at 9 mA. It functions in a commercial temperature range from 0°C to +70°C. The component is housed in a 20-pin SOIC package.
Feature Summary
- Octal configuration with three-state outputs for bus-oriented systems
- Designed to improve performance and density of memory address drivers
- Suitable for clock drivers and general bus applications
Applications
- Memory address drivers
- Clock drivers
- Bus-oriented systems
Procurement Notes
Verify the specific suffix 'CNSR' against the official Texas Instruments datasheet to confirm the package type (SOIC-20) and operating temperature range (commercial). Ensure the logic family designation (ALS) matches system requirements for speed and power consumption. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and current production status.
Selection Notes
Select this component when designing systems requiring octal buffering with three-state control. Consider the ALS logic family characteristics, specifically the trade-off between propagation delay and power dissipation compared to HC or HCT families. Verify that the 20-pin SOIC package fits the PCB layout constraints and that the 4.5V to 5.5V supply voltage aligns with the system power rails.
Part Context
This part belongs to the SN74ALS244 series of octal buffers and line drivers. It is part of the broader 74xx logic family, specifically utilizing Advanced Low-power Schottky technology. The device serves as a standard interface solution for digital systems requiring signal buffering and isolation on bidirectional buses.
Replacement Considerations
Check for SN74ALS244 variants with different suffixes indicating package changes or extended temperature ranges. Verify compatibility with other 74ALS series components in the design.
