EM773FHN33,551 NXP Semiconductors, EM773FHN33,551 Datasheet - Page 10

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

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
7.5.2 Interrupt sources
7.7.1 Features
7.6 IOCONFIG block
7.7 Fast general purpose parallel I/O
7.8 UART
Each peripheral device has one interrupt line connected to the NVIC but may have several
interrupt flags. Individual interrupt flags may also represent more than one interrupt
source.
Any GPIO pin (total of up to 25 pins) regardless of the selected function, can be
programmed to generate an interrupt on a level, or rising edge or falling edge, or both.
The IOCONFIG block allows selected pins of the microcontroller to have more than one
function. Configuration registers control the multiplexers to allow connection between the
pin and the on-chip peripherals.
Peripherals should be connected to the appropriate pins prior to being activated and prior
to any related interrupt(s) being enabled. Activity of any enabled peripheral function that is
not mapped to a related pin should be considered undefined.
Device pins that are not connected to a specific peripheral function are controlled by the
GPIO registers. Pins may be dynamically configured as inputs or outputs. Multiple outputs
can be set or cleared in one write operation.
EM773 uses accelerated GPIO functions:
Additionally, any GPIO pin (total of up to 25 pins) providing a digital function can be
programmed to generate an interrupt on a level, a rising or falling edge, or both.
The EM773 contains one UART.
Support for RS-485/9-bit mode allows both software address detection and automatic
address detection using 9-bit mode.
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Four programmable interrupt priority levels, with hardware priority level masking.
Software interrupt generation.
GPIO registers are a dedicated AHB peripheral so that the fastest possible I/O timing
can be achieved.
Entire port value can be written in one instruction.
Bit level port registers allow a single instruction to set or clear any number of bits in
one write operation.
Direction control of individual bits.
All I/O default to inputs with pull-ups enabled after reset.
Pull-up/pull-down resistor configuration can be programmed through the IOCONFIG
block for each GPIO pin.
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 1 September 2010
Energy metering IC
© NXP B.V. 2010. All rights reserved.
EM773
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