MAC7100

The MAC7100 Family of microcontrollers (MCUs) are members of a pin-compatible family of 32-bit Flash-memory-based devices developed specifically for embedded automotive applications. The pin-compatible family concept enables users to select between different memory and peripheral options for scalable designs. All MAC7100 Family members are composed of a 32-bit central processing unit (ARM7TDMI-S), up to 512Kbytes of embedded Flash EEPROM for program storage, up to 32Kbytes of embedded Flash for data and/or program storage, and up to 32Kbytes of RAM. The family is implemented with an enhanced DMA (eDMA) controller to improve performance for transfers between memory and many of the on-chip peripherals. The peripheral set includes asynchronous serial communications interfaces (eSCI), serial peripheral interfaces (DSPI), inter-integrated circuit (I2C) bus controllers, FlexCAN interfaces, an enhanced modular I/O subsystem (eMIOS), 10-bit analog-to-digital converter (ATD) channels, general-purpose timers (PIT) and two special-purpose timers (RTI and SWT). The peripherals share a large number of general purpose input-output (GPIO) pins, all of which are bidirectional and available with interrupt capability to trigger wake-up from low-power chip modes.

The inclusion of a PLL circuit allows power consumption and performance to be adjusted to suit operational requirements. The operating frequency of devices in the family is up to a maximum of 50 MHz. The internal data paths between the CPU core, eDMA, memory and peripherals are all 32 bits wide, further improving performance for 32-bit applications. TheMAC7111 and MAC7131 also offer a 16-bit wide external data bus with 22 address lines. The family of devices is capable of operating over a junction temperature range of -40° C to 150° C.

Table 1 provides a comparison of members of the MAC7100 Family and the availability of peripheral modules on the various devices.