Overview
The EM773FHN33,551, produced by NXP USA Inc., is an ARM Cortex-M0 based, low-cost 32-bit energy metering IC. This integrated circuit is specifically designed for 8/16-bit smart metering applications, offering a blend of programmability, on-chip metrology functionality, and low power consumption. The EM773 is part of NXP's portfolio aimed at enhancing the efficiency and accuracy of energy measurement in various smart metering systems.
Key Specifications
| Parameter | Specification |
|---|---|
| Processor | ARM Cortex-M0, up to 48 MHz |
| Flash Memory | Up to 32 kB |
| SRAM | Up to 8 kB |
| Package | 33-pin HVQFN33 |
| Serial Interfaces | UART with RS-485 support, SPI with SSP features, I2C-bus interface (Fast-mode Plus, 1 Mbit/s) |
| Clock Generation | 12 MHz internal RC oscillator, crystal oscillator (1 MHz to 25 MHz), programmable watchdog oscillator (7.8 kHz to 1.8 MHz), PLL for CPU operation |
| Power Control | Integrated PMU, Sleep, Deep-sleep, Deep power-down modes, Power-On Reset (POR), Brownout detect |
| General Purpose I/O | Up to 25 general purpose I/O pins |
| Power Supply | Single 3.3 V power supply (1.8 V to 3.6 V) |
Key Features
- ARM Cortex-M0 processor with Nested Vectored Interrupt Controller (NVIC)
- Low power consumption with multiple reduced power modes (Sleep, Deep-sleep, Deep power-down)
- Metrology engine for energy measurement
- Serial interfaces: UART with RS-485 support, SPI with SSP features, and I2C-bus interface
- Clock generation options including internal RC oscillator, crystal oscillator, and programmable watchdog oscillator
- Integrated Power Management Unit (PMU) for power control
- Unique device serial number for identification
- General purpose counter/timers and GPIO pins
Applications
The EM773FHN33,551 is primarily designed for smart metering applications, including:
- Smart energy meters
- Advanced metering infrastructure (AMI)
- Energy monitoring and management systems
Q & A
- What is the EM773FHN33,551 based on?
The EM773FHN33,551 is based on the ARM Cortex-M0 processor. - What is the maximum CPU frequency of the EM773FHN33,551?
The maximum CPU frequency is up to 48 MHz. - What types of serial interfaces does the EM773FHN33,551 support?
The EM773FHN33,551 supports UART with RS-485, SPI with SSP features, and I2C-bus interface. - What are the power modes available in the EM773FHN33,551?
The available power modes are Sleep, Deep-sleep, and Deep power-down. - What is the package type of the EM773FHN33,551?
The package type is 33-pin HVQFN33. - What is the voltage range for the EM773FHN33,551?
The voltage range is from 1.8 V to 3.6 V with a single 3.3 V power supply. - Does the EM773FHN33,551 have a metrology engine?
Yes, it includes a metrology engine for energy measurement. - What is the purpose of the integrated PMU in the EM773FHN33,551?
The integrated PMU (Power Management Unit) is used to minimize power consumption during different power modes. - Can the EM773FHN33,551 be woken up from Deep-sleep mode?
Yes, the processor can be woken up from Deep-sleep mode via a dedicated start logic using up to 13 functional pins. - Is the EM773FHN33,551 still in production?
No, the EM773FHN33,551 is no longer manufactured, but it may be available from other suppliers or distributors.
