MSC7121ZQF

Overview

The Freescale Semiconductor MSC7121ZQF is a high-performance 32-bit RISC microcontroller based on the ARM7TDMI core with Thumb extensions. It integrates 512K Bytes of Program Flash, 32K Bytes of Data Flash, and 32K Bytes of SRAM. The device features an Enhanced Direct Memory Access (eDMA) Controller, four CAN 2.0 FlexCAN interfaces, and 85 General Purpose Input/Output pins. Peripheral support includes sixteen 10-bit Analog-to-Digital Converters, an Enhanced Modular I/O Subsystem, two DSPI modules, four eSCI interfaces, an I2C Bus Module, and a Periodic Interrupt Timer module with ten timers.

Feature Summary

• Integrates ARM7TDMI processor core with Thumb instruction set extensions for efficient code execution.
• Includes Enhanced Direct Memory Access controller to manage data transfers without CPU intervention.
• Provides multiple communication interfaces including FlexCAN, SPI, SCI, and I2C for system connectivity.
• Features extensive analog input capabilities via sixteen-channel 10-bit ADCs.

Applications

• Automotive body control modules requiring robust CAN communication.
• Industrial control systems utilizing multiple serial and parallel interfaces.
• Embedded applications needing high-speed data acquisition through integrated ADCs.

Procurement Notes

Verify the specific suffix ZQF against official NXP documentation to confirm package type and temperature range. Ensure compatibility with existing development tools such as Keil MDK or SEGGER debuggers. Confirm that the component source aligns with current NXP Semiconductors standards following the Freescale merger.

Selection Notes

Select this microcontroller when an ARM7-based solution with significant on-chip memory and diverse peripheral sets is required. Consider the 85 GPIO count and eDMA capabilities for complex data handling tasks. Evaluate the integration of FlexCAN and ADC channels against system interface requirements before finalizing the design.

Part Context

The MSC7121 series belongs to the Freescale MAC7100 family of microcontrollers. Freescale Semiconductor merged into NXP Semiconductors in December 2015, making NXP the current manufacturer. This part represents a legacy high-performance embedded solution designed for demanding industrial and automotive environments.

Replacement Considerations

Consult NXP Semiconductors for direct replacements within the updated product portfolio. Verify pinout and register compatibility if substituting with newer ARM Cortex-M based alternatives from the same manufacturer.