EM773FHN33,551 NXP Semiconductors, EM773FHN33,551 Datasheet - Page 12

IC ENERGY METER ARM 32VQFN

EM773FHN33,551

Manufacturer Part Number
EM773FHN33,551
Description
IC ENERGY METER ARM 32VQFN
Manufacturer
NXP Semiconductors
Datasheet

Specifications of EM773FHN33,551

Core Processor
ARM Cortex-M0
Core Size
32-Bit
Speed
48MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, WDT
Number Of I /o
25
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-VQFN Exposed Pad
Output Voltage
3.6 V
Output Current
20 mA
Output Power
1.5 W
Input Voltage
1.8 V to 3.6 V
Switching Frequency
48 MHz
Operating Temperature Range
- 40 C to + 85 C
Mounting Style
SMD/SMT
Duty Cycle (max)
50 %
Number Of Outputs
10
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
568-5213
NXP Semiconductors
EM773
Objective data sheet
7.10.1 Features
7.12.1 Features
7.11.1 Features
7.12 General purpose external event counter/timers
7.11 Metrology engine
The EM773 contains a metrology engine designed to collect voltage and current inputs to
calculate the active power, reactive power, apparent power and power factor of a load.
The purpose of the metrology engine is for non-billing applications such as plug meters,
smart appliances, industrial and consumer sub-meters, etc.
The EM773 includes two 32-bit counter/timers and one 16-bit counter/timers. The
counter/timer is designed to count cycles of the system derived clock. It can optionally
generate interrupts or perform other actions at specified timer values, based on four
match registers. Each counter/timer also includes one capture input to trap the timer value
when an input signal transitions, optionally generating an interrupt.
The I
I
Easy to configure as master, slave, or master/slave.
Programmable clocks allow versatile rate control.
Bidirectional data transfer between masters and slaves.
Multi-master bus (no central master).
Arbitration between simultaneously transmitting masters without corruption of serial
data on the bus.
Serial clock synchronization allows devices with different bit rates to communicate via
one serial bus.
Serial clock synchronization can be used as a handshake mechanism to suspend and
resume serial transfer.
The I
The I
1 % accurate for scalable input sources up to 230 V/50 Hz/16 A and
110 V/60 Hz/20 A while maintaining this accuracy with a factor of 1 to 400 down from
this maximum current.
Automatically calculates active power in W, reactive power in VAr, apparent power in
VA, power factor ratio, Vrms and Irms without ARM CPU intervention.
Standard API for initializing, starting, stopping and reading data from the metrology
engine using the ARM Cortex M0.
A 32-bit/16-bit timer/counter with a programmable 32-bit/16-bit prescaler.
Counter or timer operation.
One capture channel per timer, that can take a snapshot of the timer value when an
input signal transitions. A capture event may also generate an interrupt.
2
C-bus interface also supports Fast-mode Plus with bit rates up to 1 Mbit/s.
2
2
2
C-interface is a standard I
C-bus can be used for test and diagnostic purposes.
C-bus controller supports multiple address recognition and a bus monitor mode.
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 1 September 2010
2
C-bus compliant interface with open-drain pins. The
Energy metering IC
© NXP B.V. 2010. All rights reserved.
EM773
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