M5450B7

Display Drivers Overview

The M5450B7 is a monolithic MOS integrated circuit manufactured by STMicroelectronics, designed specifically for driving LED displays. It utilizes N-channel silicon gate technology and is housed in a 40-pin dual in-line plastic package (PDIP-40). The device supports the configuration of four or five digits for display applications. Key electrical specifications include a maximum supply current of 7 mA, an operating supply voltage range from 4.75 V to 13.2 V, and a low-level output current capability of 25 mA per sink. The power dissipation rating is specified at 1 W, with a minimum operating temperature of -25°C.

Display Drivers Feature Summary

• Monolithic MOS construction using N-channel silicon gate technology
• Integrated driver for direct LED display digit control
• Supports multi-digit display configurations via single IC

Display Drivers Applications

• LED numeric display systems requiring 4 or 5 digits
• Industrial instrumentation panel indicators
• Consumer electronic display modules

Display Drivers Procurement Notes

Verify component authenticity through authorized STMicroelectronics distributors or certified partners. Confirm package integrity and pin alignment against the PDIP-40 specification. Check manufacturing date codes as this part may be classified as obsolete or new old stock. Ensure supply voltage requirements match system design constraints before integration.

Display Drivers Selection Notes

Select this component when a dedicated LED display driver with high sink current capability is required. The 25 mA output current suits standard LED segments. Verify that the 4.75 V to 13.2 V operating range aligns with the target power supply. Consider the 40-pin DIP footprint for PCB layout compatibility during the design phase.

Display Drivers Part Context

This component belongs to the PMIC Display Drivers family within STMicroelectronics' portfolio. It is part of the M5450/M5451 series, which are legacy monolithic MOS circuits. These devices were engineered for reliable segment driving in digital readouts before the prevalence of multiplexed controller solutions.

Display Drivers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult STMicroelectronics directly for current equivalent recommendations or verify if newer generation drivers meet the specific 25 mA sink and voltage requirements.