NA556N

Programmable Timers And Oscillators Overview

The NA556N is a dual precision timer integrated circuit manufactured by Texas Instruments, belonging to the NE556 family. It integrates two independent 555-type timers within a single 14-pin Dual In-Line Package (PDIP). The device operates on a single power supply ranging from 4.5V to 16V. Key electrical specifications include a maximum operating frequency of 100kHz and a supply current of 20mA. It supports both monostable and astable modes with output currents up to 200mA. The component is rated for an industrial temperature range of -40°C to 85°C.

Programmable Timers And Oscillators Feature Summary

• Dual Timer Architecture: Contains two independent 555-type timers in one package.
• Wide Supply Voltage: Operates reliably between 4.5V and 16V.
• High Output Drive: Provides 200mA sink/source capability per timer channel.
• Extended Temperature Range: Qualified for operation from -40°C to 85°C.

Programmable Timers And Oscillators Applications

• Precision timing circuits requiring dual channels
• Oscillator designs for clock signals
• Sequential timing events
• Pulse width modulation generation

Programmable Timers And Oscillators Procurement Notes

Verify the suffix 'N' confirms the PDIP-14 through-hole package. Confirm the 'NA' prefix indicates the extended -40°C to 85°C temperature grade compared to standard commercial variants. Check RoHS compliance status as per the latest manufacturer documentation.

Programmable Timers And Oscillators Selection Notes

Select NA556N when dual timing functions are required in a compact form factor. Choose this part over single-timer ICs like NE555 to reduce board space. Ensure the application voltage stays within the 4.5V to 16V limit. Verify that the 100kHz frequency limit meets the system requirements.

Programmable Timers And Oscillators Part Context

The NA556N is part of the broader 555 timer family produced by Texas Instruments. It serves as the dual-channel counterpart to the single NE555. The 'NA' designation typically denotes the industrial temperature variant, distinguishing it from the commercial NE556N which operates from 0°C to 70°C.

Programmable Timers And Oscillators Replacement Considerations

NE556N: Commercial grade equivalent with 0°C to 70°C range. SA556N: Industrial grade equivalent with similar specifications. LM556C: Alternative dual timer from other manufacturers.