SAM4CM_14 Datasheet, PDF (1/1177 Pages) ATMEL Corporation – Atmel | SMART ARM-based Flash MCU

SAM4CM Series
Atmel | SMART ARM-based Flash MCU
DATASHEET
Description
The Atmel^® | SMART SAM4CM series represents a family of system-on-chip
solutions for residential and polyphase metering applications. The devices offer
up to class 0.2 metrology accuracy over a dynamic range of 3000:1 within the
industrial temperature range and are compliant with ANSI C12.20-2002 and IEC
62053-22 standards.
A seamless extension of Atmel's SAM4, SAM4CP and SAM4C family of
microcontrollers and solutions for smart grid security and communications
applications, these metrology-enabled devices offer an unprecedented level of
integration and flexibility with dual 32-bit ARM^® Cortex^®-M4 RISC processors
running at a maximum speed of 120 MHz each⁽¹⁾, up to 2 Mbytes of embedded
Flash, 304 Kbytes of SRAM and on-chip cache.
The unique dual ARM Cortex-M4 architecture supports implementation of signal
processing, application and communications firmware in independent partitions,
and offers the ability to extend program and data memory via parallel external bus
interface (EBI) to ensure scalability of the design to meet future requirements.
The peripheral set includes metrology-specific precision voltage reference, up to
seven (7) simultaneously sampled Sigma-Delta ADC subsystems supporting
three (3) voltage and four (4) current measurement channels (polyphase versions
only), an extensive set of embedded cryptographic features, anti-tamper, Floating
Point Unit (FPU), four USARTs, two UARTs, two TWIs, four SPIs, three 16-bit
PWMs, two 3-channel general-purpose 16-bit timers, 6-channel 10-bit ADC,
battery-backed RTC with <1 µA consumption and a 38 x 6 segmented LCD
controller.
To ensure the distinct separation of metrology and application or communication
functions, the SAM4CM integrates a dedicated Cortex-M4F core that manages all
necessary metrology resources and memory.
Atmel-11203C-ATARM-SAM4CM32-SAM4CM16-SAM4CM8-Datasheet_06-Oct-14