AT90USB1287-AUR Atmel, AT90USB1287-AUR Datasheet - Page 256
AT90USB1287-AUR
Manufacturer Part Number
AT90USB1287-AUR
Description
MCU AVR 128K FLASH 16MHZ 64TQFP
Manufacturer
Atmel
Series
AVR® 90USBr
Datasheet
1.AT90USB646-MU.pdf
(461 pages)
Specifications of AT90USB1287-AUR
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
128KB (128K x 8)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
8K 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-TQFP, 64-VQFP
Processor Series
AT90USBx
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
8 KB
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATSTK525, ATAVRISP2, ATAVRONEKIT, AT90USBKEY, ATEVK525, ATAVRQTOUCHX
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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21.5.3
21.6
21.6.1
256
Speed Control
AT90USB64/128
Freeze clock
Device mode
The firmware has the ability to reduce the power consumption by setting the FRZCLK bit, which
freeze the clock of USB controller. When FRZCLK is set, it is still possible to access to the fol-
lowing registers:
Moreover, when FRZCLK is set, only the following interrupts may be triggered:
When the USB interface is configured in device mode, the speed selection (Full Speed or Low
Speed) depends on the UDP/UDM pull-up. The LSM bit in UDCON register allows to select an
internal pull up on UDM (Low Speed mode) or UDP(Full Speed mode) data lines.
Figure 21-14. Device mode Speed Selection
• the HWUPI interrupt is triggered in the Host mode (HOST set).
• the IDTI interrupt is triggered
• the VBUSTI interrupt is triggered
• USBCON, USBSTA, USBINT
• UDCON (detach, ...)
• UDINT
• UDIEN
• UHCON
• UHINT
• UHIEN
• WAKEUPI
• IDTI
• VBUSTI
• HWUPI
UCAP
UDM
UDP
DETACH
UDCON.0
UDCON.2
LSM
Regulator
USB
7593K–AVR–11/09
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