NXP Semiconductors EM773 Energy Metering ICs

NXP Semiconductors EM773 ARM Cortex™-M0, 32-bit energy metering ICs are designed for 8- and 16-bit smart-metering applications. NXP EM773 energy metering ICs operate at CPU frequencies of up to 48 MHz and offer programmability and on-chip metrology functionality combined with a low-power, simple instruction set and memory addressing with reduced code size compared with existing 8- and 16-bit architectures. NXP Semiconductors EM773 energy metering ICs includes up to 32 kB of flash memory, up to 8 kB of data memory, up to 25 general purpose I/O pins, and a metrology engine for energy measurement.

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Features

System:

ARM Cortex-M0 processor, running at frequencies of up to 48 MHz.
ARM Cortex-M0 built-in Nested Vectored Interrupt Controller (NVIC).

Memory:

32 kB on-chip flash programming memory.
8 kB SRAM.

Digital peripherals:

Up to 25 General Purpose I/O (GPIO) pins with configurable pull-up/pull-down resistors.
GPIO pins can be used as edge and level sensitive interrupt sources.

Analog peripherals:

Metrology Engine for Smart Metering with two current inputs and a voltage input.

Serial interfaces:

UART with fractional baud rate
One SPI controller with SSP features and with FIFO and multi-protocol capabilities.
I²C-bus interface supporting full I²C-bus specification and Fast-mode Plus with a data rate of 1 Mbit/s with multiple address recognition and monitor mode.

Power control:

Integrated PMU (Power Management Unit) to minimize power consumption during Sleep, Deep-sleep, and Deep power-down modes.
Three reduced power modes: Sleep, Deep-sleep, and Deep power-down.