NE556DR

Programmable Timers And Oscillators Overview

The NE556DR is a dual timer integrated circuit manufactured by Texas Instruments, belonging to the standard 555 timer family. It integrates two independent timers within a single 14-SOIC package, sharing a common power supply and ground while maintaining separate control lines. The device operates on a supply voltage range of 4.5V to 16V with a maximum operating frequency of 100kHz. It features TTL-compatible outputs capable of sourcing or sinking up to 200mA. Designed for surface-mount applications, it supports both astable and monostable modes within a commercial temperature range of 0°C to +70°C.

Programmable Timers And Oscillators Feature Summary

• Dual independent timer architecture in a compact 14-SOIC package
• TTL-compatible outputs with high drive capability (±200mA)
• Wide supply voltage operation from 4.5V to 16V
• Maximum oscillation frequency of 100kHz

Programmable Timers And Oscillators Applications

• DC-to-AC converters
• pulse width modulation circuits
• logic timing delays
• sequence timing generators

Programmable Timers And Oscillators Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS3 compliance status as indicated in official documentation. Check for End-of-Life notices or production change notifications prior to procurement. Ensure packaging specifications match design requirements, noting availability in cut tape, reel, or MouseReel formats.

Programmable Timers And Oscillators Selection Notes

Select the NE556DR when space constraints require two independent timers in a single footprint. Compare against the NE556N variant if through-hole mounting is required instead of surface mount. Verify that the 100kHz frequency limit and 200mA output current meet specific load requirements. Ensure the 0°C to +70°C operating temperature range aligns with the target environmental conditions.

Programmable Timers And Oscillators Part Context

The NE556DR is the surface-mount version of the NE556D, which has been discontinued. It serves as the modern replacement for legacy through-hole designs, offering pin-compatible functionality in a smaller SOIC form factor. It belongs to the broader NE556 series alongside variants like the NE556N.

Programmable Timers And Oscillators Replacement Considerations

The NE556D is the obsolete predecessor requiring replacement. The NE556N is available as a through-hole alternative. Other manufacturers produce pin-compatible dual timers under different part numbers.