SA556D

Programmable Timers And Oscillators Overview

The SA556D is a dual general-purpose timer integrated circuit manufactured by STMicroelectronics. It contains two independent timers within a single SOIC-14 surface-mount package. The device operates with a supply voltage range of 4.5 V to 16 V and supports an operating temperature range from -40°C to +105°C. Each timer channel provides a high-level output current of 200 mA and a low-level output current of -200 mA. This component belongs to the SA556 series and is classified under clock and timer ICs.

Programmable Timers And Oscillators Feature Summary

• Dual timer configuration in a single SOIC-14 SMD/SMT package
• Output drive capability of ±200 mA per channel
• Wide supply voltage operation between 4.5 V and 16 V
• Extended industrial temperature range from -40°C to +105°C

Programmable Timers And Oscillators Applications

• General purpose timing circuits
• Pulse generation applications
• Time delay functions
• Frequency division circuits

Programmable Timers And Oscillators Procurement Notes

The SA556D is listed as a discontinued product by the manufacturer. Availability is restricted, and distributors may not stock this item in all regions. Verification of current lifecycle status and alternative sourcing options is required before procurement planning.

Programmable Timers And Oscillators Selection Notes

Designers should consider the discontinued status when selecting this component for new designs. The SOIC-14 package requires appropriate surface-mount assembly techniques. Ensure that the 4.5 V minimum supply voltage and ±200 mA output current requirements align with the target system specifications.

Programmable Timers And Oscillators Part Context

The SA556D is part of the SA556 series of dual timers produced by STMicroelectronics. It serves as a standard timing solution within the company's portfolio of clock and timer ICs. The 'D' suffix typically denotes the specific SOIC-14 tube packaging variant.

Programmable Timers And Oscillators Replacement Considerations

As the SA556D is discontinued, engineers must identify functional equivalents. Verify pin compatibility and electrical parameters against potential substitute dual timer ICs available from STMicroelectronics or other manufacturers.