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Product Detailed Parameters
- Description：54ACT244 OCTAL BUFFERS/DRIVERS W
- Series：54ACT
- Mfr：Texas Instruments
- Package：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：24mA, 24mA
- Voltage - Supply：4.5V ~ 5.5V
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-CFlatPack
- Supplier Device Package：20-CFP
- Grade：-
- Qualification：-
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Overview
The SNJ54ACT244W is a military-grade octal buffer and driver featuring three-state outputs, housed in a 20-pin Ceramic Flat Package (CFP). It operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature range from -55°C to 125°C. The device consists of two independent 4-bit buffers with separate active-low output enable inputs. It provides a maximum propagation delay of 9.5ns at 5V and accepts TTL-compatible input voltages up to 5.5V.
Feature Summary
- Military-grade qualification compliant with MIL-PRF-38535 standards
- Octal configuration organized as two independent 4-bit drivers
- Three-state outputs controlled by active-low enable signals
- TTL-compatible inputs accepting voltages up to VCC
Applications
- LED displays
- Servers and telecommunication systems
- Switching networks
Procurement Notes
Verify the specific ordering suffix 'W' corresponds to the CFP package variant. Confirm that the Military rating aligns with project requirements for MIL-PRF-38535 compliance. Ensure environmental specifications meet the required -55°C to 125°C operational range. Check for any RoHS exemptions associated with ceramic packaging.
Selection Notes
Select this component when high-drive capability and military reliability are required. It is suitable for applications needing 24mA current drive per channel. Consider the CFP package for hermetic sealing needs. Verify compatibility with existing 5V logic levels and bus-oriented receiver designs.
Part Context
This part belongs to the SNx4ACT244 family of octal buffers and drivers. It is designed to improve performance and density in memory address drivers, clock drivers, and bus-oriented receivers. The ACT series offers higher speed compared to standard AC devices while maintaining CMOS power consumption characteristics.
Replacement Considerations
SNJ54ACT244J (CDIP package)
FAQ
What is the function of the OE pin?
The OE (Output Enable) pin is active low. When OE is low, data passes from A inputs to Y outputs. When OE is high, the outputs enter a high-impedance state.
Are the inputs overvoltage tolerant?
No, the inputs are not overvoltage tolerant and must be limited to VCC. They accept TTL-compatible voltages up to 5.5V.
