ALD2502SBL

Programmable Timers And Oscillators Overview

The ALD2502SBL is a dual precision high-speed micropower timer manufactured by Advanced Linear Devices Inc. Built with advanced silicon gate CMOS technology, it features two independent timing circuits in a 14-pin SOIC package. The device operates on a supply voltage range of 2V to 12V with a typical supply current of 100µA. It supports monostable and astable modes, offering a typical cycle time of 400ns and a maximum oscillation frequency of 2.5MHz at 5V. The inputs and outputs are compatible with CMOS, NMOS, and TTL logic standards.

Programmable Timers And Oscillators Feature Summary

• Dual precision timing circuits with high input impedance allowing smaller timing capacitors
• High speed operation with typical cycle time of 400ns and 2.5MHz oscillation at 5V
• Low power consumption with typical supply current of 100µA
• CMOS, NMOS, and TTL compatible inputs and outputs

Programmable Timers And Oscillators Applications

• High speed one-shot pulse generation
• Precision timing and sequential timing
• Long delay timers
• Pulse width and pulse position modulation
• Missing pulse detection and frequency division

Programmable Timers And Oscillators Procurement Notes

Verify the component status and availability through authorized distributors or the manufacturer directly. Confirm that the ordering suffix 'L' indicates lead-free (RoHS) compliance as specified in the datasheet. Ensure the 14-pin SOIC package matches the design requirements for the target application.

Programmable Timers And Oscillators Selection Notes

Select the ALD2502SBL when dual independent timers are required in a compact surface-mount package. Consider the 2V to 12V operating voltage range and 100µA typical supply current for low-power applications. Verify compatibility with existing logic families (CMOS, NMOS, TTL) and ensure the 14-pin SOIC footprint fits the PCB layout constraints.

Programmable Timers And Oscillators Part Context

The ALD2502SBL belongs to the ALD1502/ALD2502 family of single/dual precision high-speed micropower timers. It serves as a functional equivalent to the NE556 with expanded frequency ranges. The 'SBL' suffix denotes the 14-pin Small Outline Package (SOIC) with lead-free (RoHS) construction, suitable for commercial temperature ranges (0°C to +70°C).

Programmable Timers And Oscillators Replacement Considerations

The ALD2502 is functionally equivalent to the NE556 with the same pin-out. Other members of the ALD1502/ALD2502 family include the single-channel ALD1502 and variants with different packages such as PDIP or CERDIP.