STMicroelectronics’s new STM32F446 microcontrollers feature ARM Cortex-M4 based processing combined with 256- or 512-KB on-chip flash memory options. In addition to using STMicro’s ART Accelerator, the microcontrollers feature smart architecture, advanced flash technology, and an embedded ARM Cortex-M4 core to achieve a performance of 225 DMIPS and 608 CoreMark at 180 MHz executing from embedded flash.
Key features include:
- At 180 MHz, the STM32F446 delivers 225 DMIPS/608 CoreMark performance executing from flash memory with 0-wait states. The DSP instructions and the floating-point unit expand the range of addressable applications.
- Using a 90-nm process, the current consumption in Run mode and executing from flash memory is as low as 200 µA/MHz at 180 MHz. In Stop mode, the power consumption is 50 µA typical.
- Two dedicated audio PLL, SPDIF input, three half-duplex I²S, and two serial audio interfaces (SAI) supporting full-duplex I²S as well as time division multiplex (TDM) mode.
- Up to 20 communication interfaces (including 4x USARTs plus 2x UARTs running at up to 11.25 Mbps, 4x SPI running at up to 45 Mbps, 3x I²C with a new optional digital filter capability, 2x CAN, SDIO, HDMI CEC and camera interface)
- Two 12-bit DACs, three 12-bit ADCs reaching 2.4 MSPS or 7.2 MSPS in interleaved mode up to 17 timers: 16- and 32-bit running at up to 180 MHz
- Easily extendable memory range using the flexible 90-MHz memory controller with a 32-bit parallel interface, and supporting Compact Flash, SRAM, PSRAM, NOR, NAND and SDRAM memories
- Cost-effective NOR flash extension with the 90-MHz Dual quadSPI interface supporting memory-mapped mode
- STM32F446 samples are now available for lead customers. Volume production is scheduled for Q1 2015 in packages from a tiny WLCSP81 measuring 3.728 × 3.85 mm to a 20 × 20 mm LQFP144 with 256- or 512-KB flash memory, all with 128-KB SRAM. Pricing starts at $3.75 for the STM32F446RC in a 64-pin LQFP64 package with 256-KB flash memory and 128-KB SRAM for orders of 10,000 units.
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