74LV244DB,112

Overview

The Nexperia 74LV244DB,112 is an octal buffer and line driver featuring three-state outputs. It operates within a supply voltage range of 1.0 V to 5.5 V and accepts TTL input levels between 2.7 V and 3.6 V. The device provides two independent output enables, each controlling four outputs. Propagation delay ranges from 9 ns at 3.3 V to 50 ns at 1.2 V. Static current is 160 µA maximum at 5.5 V. Output drive capability reaches 16 mA. It complies with JEDEC standards for various voltage ranges and offers ESD protection exceeding 2000 V HBM.

Feature Summary

• Features two independent output enable inputs (1OE and 2OE) that control four 3-state outputs each, allowing flexible bus configuration.
• Includes input clamp diodes to interface with voltages exceeding VCC when used with current limiting resistors.
• Provides latch-up performance exceeding 100 mA per JESD 78 Class II Level B for enhanced reliability.

Applications

• Bus-oriented memory and address drivers
• Clock drivers
• Buffering for high-capacitance loads

Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest documentation to confirm package type and temperature range. Confirm RoHS compliance status directly with the supplier or official datasheet revision history. Check for any product change notices regarding manufacturing site or material composition updates before finalizing procurement specifications.

Selection Notes

Select this component for applications requiring wide voltage operation from 1.0 V to 5.5 V. Ensure the design accommodates the specified propagation delays at the target operating voltage. Verify that the load capacitance and switching frequency remain within limits defined by the power dissipation capacitance parameter to maintain signal integrity.

Part Context

This part belongs to the 74LV series of low-voltage CMOS logic devices manufactured by Nexperia. It serves as an octal buffer/line driver with 3-state outputs. The 'DB' designation indicates the SO20 plastic small outline package variant. It is designed for general-purpose digital buffering in systems utilizing mixed voltage levels.

Replacement Considerations

Direct substitutes include other 74LV244 variants from Nexperia such as the TSSOP20 version (74LV244PW). Cross-brand equivalents must match the 8-bit 3-state buffer functionality, 1.0 V to 5.5 V supply range, and SO20 package dimensions.