ATMEGA32A-PU Atmel, ATMEGA32A-PU Datasheet - Page 300

• Manufacturer Part Number: ATMEGA32A-PU
• Description: MCU AVR 32K FLASH 16MHZ 40-PDIP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA32A-PU

• 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: 40-DIP (0.600", 15.24mm)
• Processor Series: ATMEGA32x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 2 KB
• Interface Type: 2-Wire, SPI, USART
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Package: 40PDIP
• Device Core: AVR
• Family Name: ATmega
• Maximum Speed: 16 MHz
• Operating Supply Voltage: 3.3|5 V
• Data Rom Size: 1024 B
• Height: 4.83 mm
• Length: 52.58 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Width: 13.97 mm
• Controller Family/series: AVR MEGA
• No. Of I/o's: 32
• Eeprom Memory Size: 1KB
• Ram Memory Size: 2KB
• Cpu Speed: 16MHz
• Rohs Compliant: Yes
• For Use With: ATSTK524 - KIT STARTER ATMEGA32M1/MEGA32C1ATSTK600 - DEV KIT FOR AVR/AVR32ATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVRATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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