The DS3644 is a secure supervisor with 1024 Bytes of SRAM for the secure storage of sensitive data and the physical tamper-sensing response functions required in cryptographic processors and data security equipment.
One of the Maxim chip’s primary features is the on-chip non-imprinting memory, consisting of eight 128-Byte banks incorporating a high-speed, direct-wired clearing function. The 1 KB memory is constantly complemented in the background to prevent memory imprinting of data. The IC’s architecture allows the user to clear selective banks of the memory based upon specified tamper events. In the event of a qualified tamper event, the desired bank(s) of memory are rapidly cleared and a negative bias can be applied to erase external memory.
The DS3644 includes a seconds counter, watchdog timer, CPU supervisor, non-volatile SRAM controller and on-chip temperature sensor. In the event of a primary power failure, an external battery source is automatically switched in to keep the memory, time and tamper-detection circuitry active. The device provides low-leakage, tamper-detection inputs for interface to external sensors, interlocks and anti-tamper meshes. It also invokes a tamper event on absolute temperature, if the temperature rate-of-change exceeds programmed limits, or if the crystal oscillator frequency falls outside a specified window. The tamper event is latched and time-stamped for fault-recovery purposes.
Access to the timer, tamper monitoring, memory and device configuration is conducted through an I²C-compatible interface. The DS3644 is assembled in a lead-free, 7 x 7 x 0,8 mm CSBGA package.
For more information contact Larry Gordon, CST Electronics, +27 (0)11 608 0070.
Ultra-low power MEMS accelerometer Altron Arrow
Analogue, Mixed Signal, LSI
Analog Devices’ ADXL366 is an ultra-low power, 3-axis MEMS accelerometer that consumes only 0,96 µA at a 100 Hz output data rate and 191 nA when in motion-triggered wake-up mode.
Read more...NeoMesh on LoRa CST Electronics
Telecoms, Datacoms, Wireless, IoT
Thomas Steen Halkier, CEO of NeoCortec, recently gave a keynote speech where he spoke about “NeoMesh on LoRa: Bringing true mesh networking to the LoRa PHY”.
Read more...BT Audio 4 Click board Dizzy Enterprises
Analogue, Mixed Signal, LSI
The BT Audio 4 Click board from MIKROE provides high-quality wireless audio streaming and data comms over Bluetooth.
Read more...Precision MEMS IMU modules Altron Arrow
Analogue, Mixed Signal, LSI
The ADIS16575/ADIS16576/ADIS16577 from Analog Devices are precision, MEMS IMUs that includes a triaxial gyroscope and a triaxial accelerometer.
Read more...MEMS with embedded AI processing Altron Arrow
Analogue, Mixed Signal, LSI
STMicroelectronics has announced an inertial measurement unit that combines sensors tuned for activity tracking and high-g impact measurement into a single, space-saving package.
Read more...High-performance IMU RS South Africa
Analogue, Mixed Signal, LSI
TDK Corporation has announced availability of the new InvenSense SmartMotion ICM-536xx family of high-performance 6-axis IMUs.
Read more...High-temperature closed-loop MEMS accelerometer RS South Africa
Analogue, Mixed Signal, LSI
This sensor from TDK is a high-temperature MEMS accelerometer with ±14 g input range and a digital interface for measurement while drilling applications.
Read more...Dual accelerometers on the same die Altron Arrow
Analogue, Mixed Signal, LSI
The LSM6DSV320X is the first mainstream inertial sensor to house a gyroscope alongside two accelerometers, one capable of sensing up to ±16 g and one sensing up to a staggering ±320 g.
Read more...Dual-range IMU with edge processing EBV Electrolink
Analogue, Mixed Signal, LSI
ST’s innovative LSM6DSV80X combines two accelerometer structures for 16 g and 80 g full-scale sensing, a gyroscope up 4000 dps, and embedded intelligence in a single component.
Read more...High-reliability isolation amplifiers EBV Electrolink
Analogue, Mixed Signal, LSI
The VIA series of isolation amplifiers from Vishay are designed to deliver exceptional thermal stability and precise measurement capabilities.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version