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.
A new era in modular I/O solutions Rugged Interconnect Technologies
Analogue, Mixed Signal, LSI
Aerospace and defence system designers are demanding scalable and high-performance I/O solutions and while traditional mezzanine standards have proven reliable, they often fall short of meeting modern bandwidth, size, and flexibility requirements.
Read more...High voltage instrument op-amp iCorp Technologies
Analogue, Mixed Signal, LSI
The SGM621B is a high accuracy, high voltage instrumentation amplifier, which is designed to set any gain from 1 to 10 000 with one external resistor.
Read more...High-speed SAR ADC simplifies design Altron Arrow
Analogue, Mixed Signal, LSI
The ADI AD4080 simplifies data converter integration by integrating a low drift reference buffer, low dropout regulators and a 16K result data FIFO buffer.
Read more...2-wire quad voltage output DAC Altron Arrow
Analogue, Mixed Signal, LSI
The DAC has a 2-wire serial interface that operates at clock rates up to 400 kHz, and this interface is SMBus compatible, allowing multiple devices to be placed on the same bus.
Read more...Dual-channel ADC for RF applications RFiber Solutions
Analogue, Mixed Signal, LSI
The ARF0471 from Advanced RF is a dual-channel, 14-bit, 3 GSPS ADC, which features an on-chip buffer and sample-and-hold circuit.
Read more...Infineon launches Edge Ai software solution Altron Arrow
Analogue, Mixed Signal, LSI
Infineon has introduced DEEPCRAFT, a new software solution category brand for Edge AI and machine learning, after the company recognised the huge potential of Edge AI for the market.
Read more...16-bit voltage output denseDAC Altron Arrow
Analogue, Mixed Signal, LSI
The AD5766 uses a versatile four-wire serial interface that operates at clock rates of up to 50 MHz for write mode, and is compatible with SPI, QSPI, MICROWIRE, and DSP interface standards.
Read more...Programmable power and data acquisition modules CST Electronics
DSP, Micros & Memory
TapBus programmable power supply, metering and I/O modules include pre-implemented communication interfaces, automatic addressing, encryption, and configurable access control.
Read more...AFE enables the software-defined factory Avnet Silica
Analogue, Mixed Signal, LSI
With its software configurable analogue inputs, where each input can be configured for voltage, current, resistance, or temperature, NXP’s N-AFE enables a new level of flexibility.
printer friendly version