ATmega32A Atmel Corporation, ATmega32A Datasheet - Page 303
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ATmega32A
Manufacturer Part Number
ATmega32A
Description
Manufacturer
Atmel Corporation
Specifications of ATmega32A
Flash (kbytes)
32 Kbytes
Pin Count
44
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
32
Ext Interrupts
3
Usb Speed
No
Usb Interface
No
Spi
1
Twi (i2c)
1
Uart
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
2
Eeprom (bytes)
1024
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
2.7 to 5.5
Operating Voltage (vcc)
2.7 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
3
Output Compare Channels
4
Input Capture Channels
1
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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Company
Part Number
Manufacturer
Quantity
Price
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Part Number:
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Manufacturer:
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Part Number:
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Manufacturer:
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Quantity:
20 000
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Part Number:
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Manufacturer:
SMD
Quantity:
5
Part Number:
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Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Company:
Part Number:
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Manufacturer:
ATMEL
Quantity:
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Company:
Part Number:
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Manufacturer:
Atmel
Quantity:
26 792
8155C–AVR–02/11
Table 27-3.
Figure 27-6. SPI Interface Timing Requirements (Master Mode)
Figure 27-7. SPI Interface Timing Requirements (Slave Mode)
13
14
15
16
17
18
(Data Output)
(Data Output)
(Data Input)
(Data Input)
(CPOL = 0)
(CPOL = 1)
(CPOL = 0)
(CPOL = 1)
SS high to tri-state
MISO
MOSI
MOSI
MISO
SCK
SCK
SCK
SCK
SCK to SS high
SS low to SCK
SS
SS
SPI Timing Parameters
Description
SCK to out
Setup
Hold
9
18
13
6
4
MSB
MSB
5
MSB
MSB
14
15
Mode
Slave
Slave
Slave
Slave
Slave
Salve
7
...
2 • t
...
...
...
Min
10
20
t
ck
ck
11
2
Typ
LSB
15
10
10
1
LSB
LSB
LSB
ATmega32A
11
2
12
3
16
8
Max
X
17
ns
303