Is this the ultimate memory solution for intelligent IoT devices ?
Adesto Technologies has introduced EcoXiP, a new eXecute-in-Place (XiP)
non-volatile memory (NVM) that replaces expensive, energy-inefficient
architectures, making power and performance trade-offs unnecessary in a wide
range of connected devices. EcoXiP more than doubles processor speed, lowers
system power consumption and reduces system cost, says the company.
Internet of things (IoT) devices such as wearables, medical monitors, and
other connected embedded systems must be designed to handle more intelligent
local data processing. The associated higher levels of functionality, new
wireless protocol stacks and advanced software mean these devices need more
program memory than what can be implemented economically on-chip using
embedded Flash or SRAM memory, and less than what is offered by the smallest
DRAM devices. To hit performance targets, system designers currently must
invest in memory solutions that are expensive, power-hungry and performance
limiting. Built on an innovative memory and protocol architecture, EcoXiP
overcomes these challenges.
"Demand for higher performance, lower power and lower cost in today's
connected embedded devices presents a challenge to system designers who find
that existing solutions no longer meet requirements," said Narbeh
Derhacobian, chief executive officer, Adesto Technologies. "EcoXiP is
designed from the ground-up to be the ultimate solution for serving as the
main program memory in an intelligent IoT system."
The EcoXip Advantage - eXecute-in-Place (XiP) technology holds great promise
for small embedded systems since it doesn't suffer from the disadvantages of
executing from on-chip embedded Flash or SRAM. Unlike embedded Flash, with
an external XiP solution an MCU can be implemented with the latest process
technologies leading to better power consumption, higher frequency and lower
system cost. Unlike embedded SRAM, an XiP Flash device can be turned off so
it won't consume any power during power-down modes. In addition, EcoXip
offer designers the flexibility of increasing memory capacity as their
storage needs increase. However, even state of the art XiP solutions suffer
from a lack of performance along with high power consumption and increased
EcoXiP brings together all of the advantages of traditional XiP systems over
on-chip memory, but its novel architecture means tradeoffs are no longer
Benefits include :
1 - High system performance: unlike existing Serial Flash devices, EcoXiP
delivers the required performance, achieving 2.4X CPU speed compared to
existing Quad devices and 1.4X CPU speed compared to existing Octal devices.
2 - Optimized latency and throughput: a high-speed, octal DDR interface with
a proprietary pre-fetching scheme reduces the effective latency dramatically
and delivers superior CPU performance.
3 - Concurrent Read/Write capability: designers can reduce system cost since
in most cases there is no need for additional Flash memory to handle
over-the-air updates or data logging
4 - Memory size flexibility: optimized densities from 32Mb to 128Mb enable
designers to optimize for their specific application, with the ability to
change memory capacity as their needs change without the expense of
redesigning their systems.
5- Process scalability: SOC vendors can design their chips with less
embedded Flash or even no embedded Flash, allowing them to move to process
nodes that do not support Flash such as 28nm and smaller, leading to faster,
6 - Best standby power: configurable strength IO pins and a range of power
management features lead to improved device and system power consumption.
7 - Enhanced security with on-chip unique-ID One-Time Programmable (OTP)
SPI host controllers for EcoXiP are available from Adesto IP partners
including Mobiveil and Synopsys, says the company.