EFM32G200F16 Energy Micro, EFM32G200F16 Datasheet - Page 320

• Manufacturer Part Number: EFM32G200F16
• Description: MCU 32BIT 16KB FLASH 32-QFN
• Manufacturer: Energy Micro
• Series: Geckor

Specifications of EFM32G200F16

• Core Processor: ARM® Cortex-M3™
• Core Size: 32-Bit
• Speed: 32MHz
• Connectivity: EBI/EMI, I²C, IrDA, SmartCard, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.8 V
• Data Converters: A/D 4x12b, D/A 1x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-VQFN Exposed Pad
• Processor Series: EFM32G200
• Core: ARM Cortex-M3
• Data Bus Width: 32 bit
• Data Ram Size: 8 KB
• Interface Type: I2C, UART
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 24
• Number Of Timers: 2
• Operating Supply Voltage: 1.8 V to 3.8 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

23 ACMP - Analog Comparator
23.1 Introduction
23.2 Features
2010-09-06 - d0001_Rev1.00
The Analog Comparator is used to compare the voltage of two analog inputs, with a digital output
indicating which input voltage is higher. Inputs can either be one of the selectable internal references
or from external pins. Response time and thereby also the current consumption can be configured by
altering the current supply to the comparator.
• 8 selectable external positive inputs
• 8 selectable external negative inputs
• 3 selectable internal negative inputs
• Low power mode for internal V
• Selectable hysteresis
• Selectable response time
• Asynchronous interrupt generation on selectable edges
• Operational in EM0-EM3
• Dedicated capacitive sense mode with up to 8 inputs
• Configurable inversion of comparator output
• Configurable output when inactive
0 1 2 3
• Internal 1.25 V bandgap
• Internal 2.5 V bandgap
• V
• 8 levels between 0 and ±70 mV
• Rising edge
• Falling edge
• Both edges
• Adjustable internal resistor
DD
4
scaled by 64 selectable factors
DD
and bandgap references
...the world's most energy friendly microcontrollers
320
What?
The ACMP (Analog Comparator) compares
two analog signals and returns a digital value
telling which is greater.
Why?
Applications often do not need to know the
exact value of an analog signal, only if it has
passed a certain threshold. Often the voltage
must be monitored continuously, which
requires extremely low power consumption.
How?
Available down to Energy Mode 3 and using
as little as 100 nA, the ACMP can wake
up the system when input signals pass
the threshold. The analog comparator can
compare two analog signals or one analog
signal and a highly configurable internal
reference.
Quick Facts
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