MM908E624ACDWB

Overview

The MM908E624ACDWB is an integrated single-package solution combining a high-performance HC08 microcontroller with a SmartMOS analog control IC. It features three low RDS(ON) high-side outputs, a LIN physical layer interface, and a current sense operational amplifier. The device includes a 16 KB flash memory MCU core, two 16-bit timers, a 10-bit ADC, and internal SPI/ESCI modules. Designed for automotive body electronics, it supports relay drivers for window lifts, fans, and sunroofs. Operating voltage ranges from 5.5 V to 18 V nominal, with functional operation up to 27 V.

Feature Summary

• Integrated M68HC908EY16 core with 16 KB Flash and 512 B RAM
• Three high-side switches (HS1, HS2, HS3) with diagnostic functions
• LIN 1.3 compatible physical layer interface
• Current sense operational amplifier with rail-to-rail input/output

Applications

• Automotive window lift systems
• Sunroof motor control via relays
• Fan control applications
• High-current motor relay drivers

Procurement Notes

Verify the specific suffix 'CDWB' against official NXP documentation, as standard datasheets list 'ACPEW' and 'AYPEW'. Confirm package dimensions and thermal characteristics match the required PCB layout. Ensure supply voltage limits are respected during transient conditions per ISO7637 specifications.

Selection Notes

Select this component when a combined MCU and power switch solution is required for LIN-based relay control. The integrated current sense amplifier simplifies load monitoring without external components. Consider the 54-pin SOICW package constraints and thermal dissipation requirements for high-side switch loads.

Part Context

The MM908E624 belongs to the 908E series of smart power devices designed by Freescale (now NXP). It integrates the HC08 architecture with analog power stages, reducing bill-of-materials count compared to discrete MCU, LIN transceiver, and driver solutions. It targets cost-sensitive automotive body control modules.

Replacement Considerations

Check for updated NXP part numbers with revised suffixes. Verify pin compatibility if substituting with other 908E series variants like MM908E626, noting differences in bridge configurations.