ATMEGA32L-8AUR Atmel, ATMEGA32L-8AUR Datasheet - Page 291
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ATMEGA32L-8AUR
Manufacturer Part Number
ATMEGA32L-8AUR
Description
MCU AVR 32K FLASH 8MHZ 44TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA32L-8AUR
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
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
*
Package
44TQFP
Device Core
AVR
Family Name
ATmega
Maximum Speed
8 MHz
Operating Supply Voltage
3.3|5 V
Data Bus Width
8 Bit
Number Of Programmable I/os
32
Interface Type
TWI/SPI/USART
On-chip Adc
8-chx10-bit
Number Of Timers
3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Part Number
Manufacturer
Quantity
Price
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SPI Timing
Characteristics
2503Q–AVR–02/11
Figure 145. Two-wire Serial Bus Timing
See
Table 120. SPI Timing Parameters
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
8
9
Figure 146
SCL
SDA
5. This requirement applies to all ATmega32 Two-wire Serial Interface operation. Other devices
SS high to tri-state
t
SU;STA
SCK to out high
connected to the Two-wire Serial Bus need only obey the general f
SCK to SS high
SS low to SCK
SCK high/low
Rise/Fall time
SCK high/low
Rise/Fall time
SS low to out
Description
SCK period
Out to SCK
SCK period
SCK to out
SCK to out
Setup
Setup
and
Hold
Hold
Figure 147
t
HD;STA
t
t
of
LOW
for details.
Master
Master
Master
Master
Master
Master
Master
Master
Mode
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Salve
Slave
t
HIGH
t
HD;DAT
4 • t
2 • t
2 • t
Min
10
20
t
ck
ck
ck
ck
t
LOW
t
50% duty cycle
SU;DAT
See
0.5 • t
Table 58
Typ
3.6
10
10
10
10
15
15
10
SCK
ATmega32(L)
SCL
Max
1.6
requirement.
t
SU;STO
t
r
ns
µs
ns
t
BUF
291
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