NE556DB

Programmable Timers And Oscillators Overview

The NE556DB is a dual precision timer integrated circuit manufactured by Texas Instruments, belonging to the NE556 series. It integrates two independent 555-type timers within a single 14-pin SSOP package. The device operates on a single power supply ranging from 4.5 V to 16 V. Key electrical specifications include a maximum operating frequency of 100 kHz and a supply current of 20 mA. Output drivers provide high-level and low-level currents of 200 mA each. The component supports surface-mount installation and functions reliably within an ambient temperature range of 0°C to +70°C.

Programmable Timers And Oscillators Feature Summary

• Dual Timer Configuration: Contains two independent precision timers in one package.
• SSOP Package: Housed in a compact 14-SSOP (5.30mm wide) surface-mount footprint.
• Standard Voltage Range: Operates effectively with supply voltages between 4.5 V and 16 V.
• TTL Compatible Outputs: Provides robust drive capability with ±200 mA output current.

Programmable Timers And Oscillators Applications

• General-purpose timing and pulse generation circuits.
• Sequential timing events requiring dual channels.
• DC tone generation and oscillation applications.

Programmable Timers And Oscillators Procurement Notes

Verify the specific suffix 'DB' against the manufacturer's official datasheet to confirm the SSOP-14 package variant. Confirm RoHS compliance status for the specific production batch. Check for potential End-of-Life notices or obsolescence warnings associated with this specific part number before finalizing procurement plans.

Programmable Timers And Oscillators Selection Notes

Select the NE556DB when a dual-channel timing solution is required in a surface-mount design. Compare against the NE556DR (SOIC-14) if a wider body is acceptable, or the TS556 if significantly lower power consumption and higher frequency operation are necessary. Ensure the PCB layout accommodates the 14-SSOP thermal and spacing requirements.

Programmable Timers And Oscillators Part Context

The NE556DB is the surface-mount SSOP variant of the NE556 family, which also includes the through-hole NE556N and the SOIC variant NE556DR. This component serves as a direct functional replacement for other dual 555 timers, offering pin-compatible alternatives within the same logic family for different packaging needs.

Programmable Timers And Oscillators Replacement Considerations

The NE556DR is a recommended manufacturer substitute offering identical functionality in a 14-SOIC package. For lower power applications, the TS556 provides CMOS compatibility with reduced supply current.