AT90USB646-MUR Atmel, AT90USB646-MUR Datasheet - Page 403
![MCU AVR 64K FLASH 16MHZ 64QFN](/photos/12/13/121326/313-64-qfn_sml.jpg)
AT90USB646-MUR
Manufacturer Part Number
AT90USB646-MUR
Description
MCU AVR 64K FLASH 16MHZ 64QFN
Manufacturer
Atmel
Series
AVR® 90USBr
Datasheet
1.AT90USB646-MU.pdf
(461 pages)
Specifications of AT90USB646-MUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
EBI/EMI, I²C, SPI, UART/USART, USB, USB OTG
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
48
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
4K 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
64-VQFN Exposed Pad, 64-HVQFN, 64-SQFN, 64-DHVQFN
Data Bus Width
8 bit
Data Ram Size
4 KB
Interface Type
SPI, UART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
48
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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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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