SN74ALS245A-1N

Overview

The SN74ALS245A-1N is an octal bus transceiver from the Texas Instruments ALS logic family, featuring three-state outputs. It operates within a supply voltage range of 4.5 V to 5.5 V and supports TTL input and output levels. The device provides a low-level output current of 24 mA and a high-level output current of -15 mA. It exhibits a propagation delay of 10 ns and functions reliably across an operating temperature range of 0°C to +70°C. The component is housed in a PDIP-20 package.

Feature Summary

• Octal bidirectional data transfer capability with non-inverting logic
• Three-state outputs for effective bus line isolation
• TTL-compatible input and output voltage levels

Applications

• High-speed data transmission systems
• Memory buffer applications
• Clock drivers

Procurement Notes

Verify that the specific part number suffix matches the required package type, as variations exist between through-hole and surface-mount configurations. Confirm RoHS compliance status and check for any product change notifications related to pinout or electrical specifications before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring 8-bit wide data paths with TTL compatibility. Ensure the application environment remains within the specified 0°C to +70°C temperature range. Consider the 24 mA drive strength for load requirements and verify that the 10 ns propagation delay meets the system timing constraints.

Part Context

This device belongs to the SN74ALS245 series of octal bus transceivers. It serves as a standard interface solution for connecting microprocessors to memory or peripheral devices. The ALS series offers improved speed-power product characteristics compared to earlier logic families, making it suitable for general-purpose digital logic applications.

Replacement Considerations

The SN74ALS245AN is a direct equivalent offering the same electrical characteristics in a PDIP-20 package. Verify that substitute components maintain identical pinouts and voltage levels to ensure circuit compatibility without redesign.