ATMEGA32M1-AU Atmel, ATMEGA32M1-AU Datasheet - Page 44
![MPU AVR 32K FLASH 20MHZ 32TQFP](/photos/6/91/69154/313-32-tqfp_sml.jpg)
ATMEGA32M1-AU
Manufacturer Part Number
ATMEGA32M1-AU
Description
MPU AVR 32K FLASH 20MHZ 32TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA32M1-AU
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-TQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Number Of I /o
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA32M1-AU
Manufacturer:
TYCO
Quantity:
210
- Current page: 44 of 341
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10.2.2
10.2.3
44
ATmega16M1/32M1/64M1
External Reset
Brown-out Detection
Figure 10-3. MCU Start-up, RESET Extended Externally
An External Reset is generated by a low level on the RESET pin. Reset pulses longer than the
minimum pulse width (see
reset, even if the clock is not running. Shorter pulses are not guaranteed to generate a reset.
When the applied signal reaches the Reset Threshold Voltage – V
delay counter starts the MCU after the Time-out period – t
Figure 10-4. External Reset During Operation
ATmega16M1/32M1/64M1 has an On-chip Brown-out Detection (BOD) circuit for monitoring the
V
can be selected by the BODLEVEL Fuses. The trigger level has a hysteresis to ensure spike
free Brown-out Detection. The hysteresis on the detection level should be interpreted as
V
When the BOD is enabled, and V
10-5 on page
trigger level (V
out period t
The BOD circuit will only detect a drop in V
ger than t
CC
BOT+
level during operation by comparing it to a fixed trigger level. The trigger level for the BOD
= V
INTERNAL
TIME-OUT
BOD
BOT
TOUT
RESET
RESET
+ V
given in
45), the Brown-out Reset is immediately activated. When V
V
BOT+
CC
CC
has expired.
HYST
in
/2 and V
Figure 10-5 on page
“System and Reset Characteristics” on page
“System and Reset Characteristics” on page
BOT-
V
POT
CC
= V
decreases to a value below the trigger level (V
BOT
- V
45), the delay counter starts the MCU after the Time-
CC
HYST
if the voltage stays below the trigger level for lon-
/2.
V
RST
t
TOUT
TOUT
– has expired.
RST
311.
– on its positive edge, the
CC
311) will generate a
increases above the
8209D–AVR–11/10
BOT-
in
Figure
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