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as well as an enhanced Peripheral
Touch Controller and advanced
analogue features, with the SAM L11
variant adding integrated hardware
security. They both come in 24-
and 32-pin package options and
are targeted for use across IoT and
security, low power, capacitive touch
and general purpose embedded
control applications.
The SAM L11 features Arm TrustZone
technology,
a
programmable
environment that simplifies the
implementation of security and
provides hardware isolation between
certified libraries, IP and application
code. Microchip further enhances
robust security by including chip-
level tamper resistance, secure boot
and secure key storage which, when
combined with TrustZone technology,
provides a comprehensive security
framework that protects customer
applications from both physical and
remote attacks. IoT nodes driven by
a SAM L11 provide strong resistance
to remote software attacks, thereby
increasing reliability and avoiding
downtime of the critical functions
of the nodes. The chip-level tamper
resistance helps protect nodes from
cloning and IP theft.
Both MCU families offer the industry’s
lowest
power
consumption,
allowing developers to create
extremely power-efficient designs.
When benchmarked for power
consumption, the SAM L10 received
a ULPMark score of 405, 200% better
than its nearest EEMBC-certified
competitor. Built with proprietary
picoPower technology to provide
flexible power saving modes across
all active and sleep modes, the MCUs
are supported with power debugging
and data visualiser tools to monitor
and analyse power consumption in
real time. This helps developers to
rapidly optimise their system design
for lower power consumption, with
significant improvements in battery
life.
They also feature Microchip’s
latest-generation Peripheral Touch
Controller (PTC), allowing designers
to incorporate capacitive touch
interfaces into their applications that
offer best-in-class water tolerance
and high noise immunity. Four times
faster than the previous generation
of PTC, it provides highly-responsive
and accurate touch sensing and is
supportedby theQTouchConfigurator
and Modular Library, making it
simple for designers to add elegant
touch interfaces to applications that
provide an impressively smooth
and efficient user experience, even
in the presence of moisture and
noise, while maintaining low power
consumption. The touch interface
makes the devices ideal for a myriad
of automotive, appliance, medical
and consumer Human Machine
Interface (HMI) applications.
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