ATMEGA32A-PU Atmel, ATMEGA32A-PU Datasheet - Page 301

• 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

27.6
Table 27-2
Interface meets or exceeds these requirements under the noted conditions.
Timing symbols refer to
Table 27-2.
8155C–AVR–02/11
Symbol
V
V
V
V
t
t
t
I
C
f
Rp
t
t
t
t
t
t
r
of
SP
i
SCL
HD;STA
LOW
HIGH
SU;STA
HD;DAT
SU;DAT
(1)
IL
IH
hys
OL
i
(1)
(1)
(1)
(1)
(1)
Two-wire Serial Interface Characteristics
describes the requirements for devices connected to the Two-wire Serial Bus. The ATmega32A Two-wire Serial
Parameter
Input Low-voltage
Input High-voltage
Hysteresis of Schmitt Trigger Inputs
Output Low-voltage
Rise Time for both SDA and SCL
Output Fall Time from V
Spikes Suppressed by Input Filter
Input Current each I/O Pin
Capacitance for each I/O Pin
SCL Clock Frequency
Value of Pull-up resistor
Hold Time (repeated) START Condition
Low Period of the SCL Clock
High period of the SCL clock
Set-up time for a repeated START condition
Data hold time
Data setup time
Two-wire Serial Bus Requirements
Figure
27-5.
IHmin
to V
antees that a Brown-out Reset will occur before V
operation of the microcontroller is no longer guaranteed. The test is performed using
BODLEVEL = 1 and BODLEVEL = 0 for ATmega32A.
ILmax
f
CK
(4)
10 pF < C
0.1 V
> max(16f
3 mA sink current
f
f
f
f
f
f
f
f
f
f
f
f
f
f
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
CC
Condition
< V
≤ 100kHz
> 100kHz
≤ 100kHz
> 100kHz
≤ 100kHz
> 100kHz
≤ 100kHz
> 100kHz
≤ 100kHz
> 100kHz
≤ 100kHz
> 100kHz
≤ 100kHz
> 100kHz
b
< 400 pF
SCL
i
< 0.9 V
, 250kHz)
CC
(3)
(5)
CC
20 + 0.1C
20 + 0.1C
drops to a voltage where correct
V
----------------------------
V
----------------------------
0.05 V
CC
CC
0.7 V
3 mA
3 mA
Min
-0.5
250
100
-10
4.0
0.6
4.7
1.3
4.0
0.6
4.7
0.6
–
–
0
–
0
0
0
0
0.4V
0.4V
CC
CC
b
b
(2)
(3)(2)
(3)(2)
ATmega32A
V
1000ns
------------------ -
0.3 V
CC
300ns
--------------- -
Max
50
3.45
300
250
400
0.4
0.9
C
10
10
C
–
–
–
–
–
–
–
–
–
–
–
+ 0.5
b
(2)
b
CC
Units
kHz
µA
pF
ns
ns
ns
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
ns
ns
Ω
Ω
V
V
V
V
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