ALD555SAL

Programmable Timers And Oscillators Overview

The ALD555SAL is a high-speed monolithic CMOS timer manufactured by Advanced Linear Devices. It operates within a supply voltage range of 2V to 12V and dissipates up to 600mW. The device features a typical supply current of 100µA and supports oscillation frequencies up to 2MHz. It provides a high discharge sinking current of 80mA and maintains low trigger, threshold, and reset currents at 1pA typical. The component is housed in an 8-pin SOIC package and functions as a functional equivalent to the NE555 with expanded frequency ranges.

Programmable Timers And Oscillators Feature Summary

• High-speed CMOS technology supporting 2MHz oscillation
• Low power consumption with 100µA typical supply current
• CMOS, NMOS, and TTL compatible inputs and outputs
• High discharge sink current capability of 80mA

Programmable Timers And Oscillators Applications

• High speed one-shot pulse generation
• Precision timing circuits
• Sequential timing applications
• Long delay timers
• Frequency dividers

Programmable Timers And Oscillators Procurement Notes

Verify that the ordering suffix 'L' confirms lead-free (RoHS) compliance for the ALD555SAL variant. Confirm the package type is the 8-pin Small Outline Integrated Circuit (SOIC). Ensure the operating temperature range requirement aligns with the specified 0°C to +70°C limit for this specific package configuration.

Programmable Timers And Oscillators Selection Notes

Select the ALD555SAL when a surface-mount solution is required for standard 555 timer functionality. This model is suitable for battery-operated environments due to its low power dissipation. Designers should account for the 600mW maximum power dissipation rating and ensure adequate thermal management within the SOIC-8 footprint constraints.

Programmable Timers And Oscillators Part Context

The ALD555SAL belongs to the ALD555 series from Advanced Linear Devices. It serves as a direct replacement for legacy bipolar timers like the NE555 but utilizes advanced silicon gate CMOS technology. The 'SAL' designation specifically identifies the 8-pin plastic SOIC package with lead-free construction.

Programmable Timers And Oscillators Replacement Considerations

The datasheet identifies the ALD555SAL as a functional equivalent to the NE555.