ATMEGA32M1-MU Atmel, ATMEGA32M1-MU Datasheet - Page 45
![no-image](/images/manufacturer_photos/0/0/78/atmel_sml.jpg)
ATMEGA32M1-MU
Manufacturer Part Number
ATMEGA32M1-MU
Description
MPU AVR 32K FLASH 20MHZ 32-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA32M1-MU
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
CAN, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 11x10b; D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-VFQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Number Of I /o
-
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10.2.4
10.3
10.3.1
8209D–AVR–11/10
Internal Voltage Reference
Watchdog Reset
Voltage Reference Enable Signals and Start-up Time
Figure 10-5. Brown-out Reset During Operation
When the Watchdog times out, it will generate a short reset pulse of one CK cycle duration. On
the falling edge of this pulse, the delay timer starts counting the Time-out period t
page 46
Figure 10-6. Watchdog Reset During Operation
ATmega16M1/32M1/64M1 features an internal bandgap reference. This reference is used for
Brown-out DetectionDetection, and it can be used as an input to the Analog Comparators or the
ADC. The V
internal bandgap reference.
The voltage reference has a start-up time that may influence the way it should be used. The
start-up time is given in
reference is not always turned on. The reference is on during the following situations:
1. When the BOD is enabled (by programming the BODLEVEL [2..0] Fuse)
2. When the bandgap reference is connected to the Analog Comparator (by setting the
3. When the ADC is enabled
4. When the DAC is enabled
ACBG bit in ACSR)
for details on operation of the Watchdog Timer.
REF
CC
2.56V reference to the ADC, DAC or Analog Comparators is generated from the
INTERNAL
TIME-OUT
RESET
RESET
V
CC
“System and Reset Characteristics” on page
V
CK
BOT-
ATmega16M1/32M1/64M1
V
t
TOUT
BOT+
311. To save power, the
TOUT
. Refer to
45
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