SN74ALS37AN

Overview

The SN74ALS37AN is an octal transparent latch manufactured by Texas Instruments, belonging to the ALS logic series. It features eight D-type latches with non-inverting outputs and a common enable input. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports through-hole mounting in a 20-pin PDIP package. Key electrical parameters include a propagation delay of 16 ns, a low-level output current of 24 mA, and a high-level output current of -2.6 mA. It functions reliably across an operating temperature range from 0°C to +70°C.

Feature Summary

• Provides eight independent transparent latches for data storage applications
• Features a common enable input to control data transparency
• Delivers high drive capability with significant low-level output current

Applications

• Parallel-to-serial data conversion circuits
• Bus-oriented memory register structures
• Temporary data storage in digital systems

Procurement Notes

Verify the specific manufacturer part number against official Texas Instruments documentation to confirm pinout compatibility and electrical specifications. Ensure that the procurement source provides valid RoHS compliance information as required for the project. Cross-reference the datasheet revision history to confirm the absence of recent product change notifications that might affect mechanical or electrical performance characteristics.

Selection Notes

Select this component when designing systems requiring multiple parallel data storage elements controlled by a single enable signal. The ALS series offers a balance of speed and power consumption suitable for general-purpose digital logic. Consider the 20-pin DIP package constraints if through-hole assembly is mandatory for the target application environment.

Part Context

This component is part of the broader SN74ALS family of high-speed TTL-compatible logic devices. It serves as a fundamental building block for sequential logic circuits where data retention is necessary without continuous clocking. The device complements other ALS series components such as decoders and gates in complex digital designs.