NE556NSR

Programmable Timers And Oscillators Overview

The NE556NSR is a dual precision timer integrated circuit manufactured by Texas Instruments. It integrates two independent 555-type timers within a single 14-pin Small Outline Package (SOIC). The device operates on a single power supply ranging from 4.5V to 16V, with a typical operating current of 4mA. It supports both astable and monostable modes, featuring TTL-compatible outputs capable of sourcing or sinking up to 200mA. The component is rated for an operating temperature range of 0°C to 70°C and complies with RoHS standards.

Programmable Timers And Oscillators Feature Summary

• Dual Timer Architecture: Contains two independent 555-type timers in one package.
• High Current Drive: Outputs can source or sink up to 200mA.
• Wide Supply Voltage: Operates reliably between 4.5V and 16V.
• Surface Mount Packaging: Available in a compact 14-SOIC form factor.

Programmable Timers And Oscillators Applications

• Timing and delay generation circuits
• Pulse width modulation (PWM) applications
• Logic timing devices
• Sequential timing events

Programmable Timers And Oscillators Procurement Notes

Verify the specific suffix 'SR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the 14-SOIC footprint matches the target PCB design guidelines. Ensure compliance with RoHS directives if environmental regulations apply to the final product assembly line.

Programmable Timers And Oscillators Selection Notes

Select this component when space constraints favor surface-mount technology over through-hole alternatives like the NE556N. Consider the 200mA output capability for direct driving of loads such as relays or LEDs without additional buffering. Verify that the 0°C to 70°C commercial temperature range meets the operational environment requirements.

Programmable Timers And Oscillators Part Context

This part belongs to the NE556 series, which serves as the dual-timer counterpart to the widely used single NE555 timer. The NSR variant specifically denotes the SOIC package with reel packaging, distinguishing it from DIP or SSOP variants within the same functional family.

Programmable Timers And Oscillators Replacement Considerations

Direct pin-compatible substitutes include the NE556DR (SOIC-14) and NE556DBR (SSOP-14), provided the package dimensions are acceptable. Cross-brand equivalents may require schematic review due to potential differences in internal comparator thresholds and output stage characteristics.