STMicroelectronics has led the way with microcontrollers based around the ARM Corex-M4F DSP core, coupled with key peripherals.
Now it has added larger memories, enhanced graphics support, extra peripherals, and increased power-saving flexibility for the STM32L4.
Bigger on-chip RAM, now up to 320 Kbytes, sits alongside the new ST Chrom-ART Accelerator graphics engine for smoother display performance in energy-conscious applications such as IoT devices and smart watches.
Now it has added larger memories, enhanced graphics support, extra peripherals, and increased power-saving flexibility for the STM32L4.
Bigger on-chip RAM, now up to 320 Kbytes, sits alongside the new ST Chrom-ART Accelerator graphics engine for smoother display performance in energy-conscious applications such as IoT devices and smart watches.
There is also up to 1 Mbyte Flash, an extra CAN interface, a camera interface and crystal-less Full Speed (FS) USB OTG. A new high-pin-count UFBGA169 package option gives extra flexibility for the new peripherals,
Adding security capability, the STM32L4A6 with hardware cryptographic acceleration implements SHA-256 and AES-128/192/256 algorithms.
The EEMBC CoreMark score of 273 is an indicator of the performance while the ULPBench score of 217 confirms the energy efficiency. Active-mode current of just 37µA/MHz enables longer runtime on small batteries and extends scope to create energy-neutral products powered from ambient sources.
ST has also extended the flexibility of the STM32L4 power architecture, giving developers the option to power the core from an external DC/DC converter for extra efficiency. The FlexPowerControl architecture includes a new shutdown mode for additional energy savings, alongside multiple independent core and peripheral supplies, and a separate VBAT domain with charging circuitry that gives flexibility to use or recharge battery energy.
The EEMBC CoreMark score of 273 is an indicator of the performance while the ULPBench score of 217 confirms the energy efficiency. Active-mode current of just 37µA/MHz enables longer runtime on small batteries and extends scope to create energy-neutral products powered from ambient sources.
ST has also extended the flexibility of the STM32L4 power architecture, giving developers the option to power the core from an external DC/DC converter for extra efficiency. The FlexPowerControl architecture includes a new shutdown mode for additional energy savings, alongside multiple independent core and peripheral supplies, and a separate VBAT domain with charging circuitry that gives flexibility to use or recharge battery energy.
There are seven main STM32L4 low-power modes supported, with options such as retaining I/O levels and SRAM contents, each with several sub-modes that allow precision trimming of power consumption as application demand varies.
There are STM32Cube development tools and software, two Nucleo-144 boards, and the STM32L496 Discovery Kit (STM32L496G-DISCO) with on-board audio/graphics features and Arduino, Pmod and ST's own STMod+ connectivity support. The NUCLEO-L496ZG-P features an on-board DC/DC converter for powering the core directly, which allows developers to easily use the flexible power architecture in the most energy-conscious applications. The legacy-compatible NUCLEO-L496ZG is also available, and offers the same features as existing Nucleo-144 boards.
Pricing starts from $4.63 for the STM32L496RET6 with 512 Kbytes Flash and 320 Kbytes SRAM in LQFP64 package, for orders of 10,000 pieces per year.
The development boards start at $19 for the legacy-compatible Nucleo-144 board (NUCLEO-L496ZG), which is available now. The Discovery Kit (STM32L496G-DISCO) is also available now, priced $70. The NUCLEO-L496ZG-P board with external DC/DC converter will be available to distributors in April 2017.
For further information see st.com/stm32l4x6
Related stories:
There are STM32Cube development tools and software, two Nucleo-144 boards, and the STM32L496 Discovery Kit (STM32L496G-DISCO) with on-board audio/graphics features and Arduino, Pmod and ST's own STMod+ connectivity support. The NUCLEO-L496ZG-P features an on-board DC/DC converter for powering the core directly, which allows developers to easily use the flexible power architecture in the most energy-conscious applications. The legacy-compatible NUCLEO-L496ZG is also available, and offers the same features as existing Nucleo-144 boards.
Pricing starts from $4.63 for the STM32L496RET6 with 512 Kbytes Flash and 320 Kbytes SRAM in LQFP64 package, for orders of 10,000 pieces per year.
The development boards start at $19 for the legacy-compatible Nucleo-144 board (NUCLEO-L496ZG), which is available now. The Discovery Kit (STM32L496G-DISCO) is also available now, priced $70. The NUCLEO-L496ZG-P board with external DC/DC converter will be available to distributors in April 2017.
For further information see st.com/stm32l4x6
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