AT90PWM1 Atmel Corporation, AT90PWM1 Datasheet - Page 243
AT90PWM1
Manufacturer Part Number
AT90PWM1
Description
Manufacturer
Atmel Corporation
Specifications of AT90PWM1
Flash (kbytes)
8 Kbytes
Pin Count
24
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
8
Hardware Qtouch Acquisition
No
Max I/o Pins
19
Ext Interrupts
4
Usb Speed
No
Usb Interface
No
Spi
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
125
Analog Comparators
2
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
0.5
Eeprom (bytes)
512
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 105
I/o Supply Class
2.7 to 5.5
Operating Voltage (vcc)
2.7 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
4
Output Compare Channels
12
Input Capture Channels
1
Pwm Channels
7
32khz Rtc
No
Calibrated Rc Oscillator
Yes
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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT90PWM1-16SU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Part Number:
AT90PWM161-16MN
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Part Number:
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Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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23.6
4378C–AVR–09/08
SPI Timing Characteristics
See
Table 23-4.
Note:
Figure 23-3. SPI Interface Timing Requirements (Master Mode)
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
8
9
Figure 23-3
In SPI Programming mode the minimum SCK high/low period is:
- 2 t
- 3 t
(Data Output)
(Data Input)
(CPOL = 0)
(CPOL = 1)
CLCL
CLCL
SS high to tri-state
SCK high/low
SCK to out high
SCK to SS high
SS low to SCK
SCK high/low
Rise/Fall time
Rise/Fall time
SS low to out
SPI Timing Parameters
Description
MISO
MOSI
SCK period
SCK period
Out to SCK
SCK to out
SCK to out
for f
for f
SCK
SCK
and
SS
Setup
Setup
Hold
Hold
CK
CK
Figure 23-4
< 12 MHz
>12 MHz
(1)
6
4
MSB
5
for details.
MSB
Master
Master
Master
Master
Master
Master
Master
Master
Mode
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
7
4 • t
2 • t
2 • t
Min.
10
t
20
ck
...
ck
ck
ck
...
50% duty cycle
See
0.5 • t
Typ.
Table 54
3.6
10
10
10
10
15
15
10
2
sck
LSB
1
AT90PWM1
LSB
2
Max.
1.6
3
8
ns
243
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