ATXMEGA384A1-CU ATMEL [ATMEL Corporation], ATXMEGA384A1-CU Datasheet - Page 43
ATXMEGA384A1-CU
Manufacturer Part Number
ATXMEGA384A1-CU
Description
8/16-bit XMEGA A1 Microcontroller
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.ATXMEGA384A1-CU.pdf
(82 pages)
- Current page: 43 of 82
- Download datasheet (2Mb)
26. AC - Analog Comparator
26.1
26.2
8067D–AVR–08/08
Features
Overview
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XMEGA A1 features four Analog Comparators (AC). An Analog Comparator compares two volt-
ages, and the output indicates which input is largest. The Analog Comparator may be configured
to give interrupt requests and/or events upon several different combinations of input change.
Both hysteresis and propagation delays may be adjusted in order to find the optimal operation
for each application.
A wide range of input selection is available, both external pins and several internal signals can
be used.
The Analog Comparators are always grouped in pairs (AC0 and AC1) on each analog port. They
have identical behavior but separate control registers.
Optionally, the state of the comparator is directly available on a pin.
PORTA and PORTB each has one AC pair. Notations are ACA and ACB, respectively.
Four Analog Comparators
Selectable Power vs. Speed
Selectable hysteresis
Analog Comparator output available on pin
Flexible Input Selection
Interrupt and event generation on
Window function interrupt and event generation on
– 0, 20 mV, 50 mV
– All pins on the port
– Output from the DAC
– Bandgap reference voltage.
– Voltage scaler that can perform a 64-level scaling of the internal VCC voltage.
– Rising edge
– Falling edge
– Toggle
– Signal above window
– Signal inside window
– Signal below window
XMEGA A1
43
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