Speaker
Hans-Ulrich Zurek
(Atmel-Microchip)
Description
Microchip Technology Inc. as a leading provider of microcontrollers for space application design is continuously proposing new devices for the space domain.
In addition to an increased power-computing performance, the new generation of microcontrollers integrates more and more advanced analog functions.
Use of the ATMX150RHA radiation hardened mixed technology for the development of the new microcontrollers generation allows a high level of system integration.
As a reference architecture for mixed system-on-chip, Microchip Technology Inc. is developing the SAMRH71 with integration of ATMX150RHA analog cells in a high performance Cortex M7-based microcontroller.
The SAMRH71 embeds a first set of analog functions, mainly focusing the system management features:
- linear voltage regulator, including power monitoring features
- 32768Hz Internal Oscillator
- 32768Hz Crystal Oscillator
- 12MHz Internal Oscillator (configurable as 4/8/10/12MHz)
- 20MHz Crystal Oscillator
To increase the level of integration of such a device, the SAMRH71 embeds 128K of Non Volatile Memory (NVM) and a large set of internal SRAM, thus allowing application running without external memory. The on-chip 128kBytes NVM is built around the ATMX150RHA 32kBytes Flash module .
To avoid any electrical influence of the NVM module in the applications that don't require the use of the internal NVM, the SAMRH71 embeds an isolation structure made of ATMX150RHA analog cells. In addition to the isolation of all the IOs of the NVM module, the NVMSWITCHRHA power switch is used to isolate the power supply of the NVM memories from the main SAMRH71 power domains.
On the basis of this ATMX150RHA development, Microchip Technology Inc. is working on a derivative of the SAMRH71 reference architecture to provide the market with a smaller device that would integrate more analog cells. This mixed microcontroller will be able to provide advanced functions for control/command applications
- 12-bit single-ended / differential multichannel ADC
- 12-bit single-ended / differential dual channel DAC
- Analog Comparators
Taking all the benefits of the IPs developed on the mixed signal ATMX150RHA technology, Microchip Technology Inc. is capable not only to propose a rad-hard technology for ASIC developments, but also to build up advanced controllers that can be disseminated to all the space actors.
Primary author
Mr
Yohann Bricard
(Microchip)
Co-authors
Mr
Nicolas GANRY
(Microchip Atmel)
Ms
PASCALE CHARPENTIER
(MICROCHIP Aerospace and Defense Business Unit)
