ATMEGA32A-ANR Atmel, ATMEGA32A-ANR Datasheet - Page 300
![IC MCU AVR 32K FLASH 44TQFP](/photos/6/70/67042/313-44-tqfp_sml.jpg)
ATMEGA32A-ANR
Manufacturer Part Number
ATMEGA32A-ANR
Description
IC MCU AVR 32K FLASH 44TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA32A-MU.pdf
(353 pages)
Specifications of ATMEGA32A-ANR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
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 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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27.5
8155C–AVR–02/11
System and Reset Characteristics
Figure 27-3. External Clock Drive
Figure 27-4. External RC Oscillator, Typical Frequencies (V
Notes:
Table 27-1.
Notes:
Symbol
t
t
Δ
CLCH
CHCL
Symbol
t
V
CLCL
V
V
V
t
t
V
BOD
t
I
RST
HYST
POT
RST
BOT
BG
BG
BG
1. R should be in the range 3 kΩ - 100 kΩ, and C should be at least 20 pF. The C values given in
2. The frequency will vary with package type and board layout.
1. The Power-on Reset will not work unless the supply voltage has been below V
2. V
the table includes pin capacitance. This will vary with package type.
this is the case, the device is tested down to V
Parameter
Power-on Reset Threshold
Voltage (rising)
Power-on Reset Threshold
Voltage (falling)
Voltage
Minimum pulse width on
RESET Pin
Brown-out Reset Threshold
Voltage
Minimum low voltage period
for Brown-out Detection
Brown-out Detector
hysteresis
Bandgap reference voltage
Bandgap reference start-up
time
Bandgap reference current
consumption
BOT
RESET Pin Threshold
Parameter
Rise Time
Fall Time
Change in period from
one clock cycle to the
next
R [kΩ]
Reset, Brown-out and Internal Voltage Reference Characteristics
may be below nominal minimum operating voltage for some devices. For devices where
33
10
(2)
(1)
(1)
V
Min
CC
BODLEVEL = 1
BODLEVEL = 0
BODLEVEL = 1
BODLEVEL = 0
Condition
= 2.7V to
C [pF]
22
22
CC
Max
5.5
1.6
1.6
2
= V
V
BOT
0.2 V
CC
1.15
during the production test. This guar-
Min
2.5
3.6
= 5V)
V
CC
Min
CC
= 4.5V to
1.23
Typ
1.4
1.3
2.7
4.0
50
40
10
2
2
ATmega32A
Max
0.9 V
5.5
0.5
0.5
650kHz
2.0MHz
2
Max
1.35
2.3
2.3
1.5
2.9
4.2
70
f
V
POT
(2)
CC
(falling).
Units
Units
μs
μs
mV
%
µA
µs
µs
µs
µs
V
V
V
V
V
300
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