AT90USB647 Atmel Corporation, AT90USB647 Datasheet - Page 403
AT90USB647
Manufacturer Part Number
AT90USB647
Description
Manufacturer
Atmel Corporation
Specifications of AT90USB647
Flash (kbytes)
64 Kbytes
Pin Count
64
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
48
Ext Interrupts
16
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device + OTG
Spi
2
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)
4
Eeprom (bytes)
2048
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
4
Output Compare Channels
10
Input Capture Channels
1
Pwm Channels
9
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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30.7
7593K–AVR–11/09
SPI Timing Characteristics
See
Table 30-3.
Note:
Figure 30-4. 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 30-4
(Data Output)
(Data Input)
(CPOL = 0)
(CPOL = 1)
1. In SPI Programming mode the minimum SCK high/low period is:
SS high to tri-state
SCK to out high
SCK to SS high
- 2 t
- 3 t
MISO
MOSI
SCK high/low
SS low to SCK
Rise/Fall time
Rise/Fall time
SCK
SCK
SCK high/low
SS low to out
Description
SCK period
SCK period
Out to SCK
SCK to out
SCK to out
SS
SPI Timing Parameters
CLCL
CLCL
Setup
Setup
Hold
Hold
and
for f
for f
Figure 30-5
CK
CK
(1)
< 12 MHz
> 12 MHz
6
4
MSB
5
MSB
for details.
Master
Master
Master
Master
Master
Master
Master
Master
Mode
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
7
4 • t
2 • t
Min
10
20
20
t
ck
...
ck
ck
...
See
50% duty cycle
0.5 • t
Table 17-4
Typ
3.6
10
10
10
10
15
15
10
2
sck
AT90USB64/128
LSB
1
LSB
2
Max
1.6
3
8
ns
µs
ns
403
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