ALD2502PBL

Programmable Timers And Oscillators Overview

The ALD2502PBL is a dual precision high-speed micro-power timer manufactured by Advanced Linear Devices Inc. Built with silicon gate CMOS technology, it integrates two independent timing circuits in a 14-pin Plastic DIP package. It operates on a supply voltage of 2V to 12V with typical supply current of 100µA. The device supports monostable and astable modes, featuring high discharge sinking current (80mA at 5V) and low input currents (10pA typical). It functions as a functional equivalent to the NE556 with expanded frequency ranges.

Programmable Timers And Oscillators Feature Summary

• Dual precision timers in single 14-pin PDIP package
• High speed operation: 2.5MHz typical oscillation at 5V
• Low power consumption: 100µA typical supply current
• CMOS, NMOS, and TTL compatible inputs/outputs

Programmable Timers And Oscillators Applications

• High speed one-shot pulse generation
• Precision timing and sequential timing
• Frequency divider and synchronized timer
• Missing pulse detector

Programmable Timers And Oscillators Procurement Notes

Verify the 'L' suffix indicates lead-free (RoHS) compliance per manufacturer ordering information. Confirm the PBL suffix corresponds to the 14-pin Plastic DIP package variant. Check for availability of alternative packages such as SOIC or CERDIP if surface mount or high-temperature options are required.

Programmable Timers And Oscillators Selection Notes

Select this component when dual timer functionality is needed in a compact through-hole format. Ensure the design utilizes the 2V to 12V operating range. Consider the 80mA discharge sink capability for driving external loads. Verify that the 100µA supply current meets low-power battery requirements.

Programmable Timers And Oscillators Part Context

This part belongs to the ALD1502/ALD2502 series of single/dual precision high-speed micro-power timers. The ALD2502 specifically provides two independent timers within one integrated circuit, offering a space-saving alternative to using two separate single-timer ICs like the ALD1502.

Programmable Timers And Oscillators Replacement Considerations

The datasheet identifies the ALD2502 as a functional equivalent to the NE556 with the same pin-out. Designers should verify electrical parameter compatibility, particularly regarding supply current and switching speeds, before substituting with generic NE556 equivalents.