AT90USB1286(2006) 데이터 시트보기 (PDF) - Atmel Corporation
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AT90USB1286
(Rev.:2006)
(Rev.:2006)
Atmel Corporation
AT90USB1286 Datasheet PDF : 435 Pages
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2.2.9 D-
2.2.10 D+
2.2.11 UGND
2.2.12 UVCC
2.2.13 UCAP
2.2.14 VBUS
2.2.15 RESET
2.2.16 XTAL1
2.2.17 XTAL2
2.2.18 AVCC
2.2.19 AREF
USB Full speed / Low Speed Negative Data Upstream Port. Should be connected to the USB D-
connector pin with a serial 22 Ohms resistor.
USB Full speed / Low Speed Positive Data Upstream Port. Should be connected to the USB D+
connector pin with a serial 22 Ohms resistor.
USB Pads Ground.
USB Pads Internal Regulator Input supply voltage.
USB Pads Internal Regulator Output supply voltage. Should be connected to an external capac-
itor (1µF).
USB VBUS monitor and OTG negociations.
Reset input. A low level on this pin for longer than the minimum pulse length will generate a
reset, even if the clock is not running. The minimum pulse length is given in Table 8-1 on page
60. Shorter pulses are not guaranteed to generate a reset.
Input to the inverting Oscillator amplifier and input to the internal clock operating circuit.
Output from the inverting Oscillator amplifier.
AVCC is the supply voltage pin for Port F and the A/D Converter. It should be externally con-
nected to VCC, even if the ADC is not used. If the ADC is used, it should be connected to VCC
through a low-pass filter.
This is the analog reference pin for the A/D Converter.
3. About Code Examples
This documentation contains simple code examples that briefly show how to use various parts of
the device. Be aware that not all C compiler vendors include bit definitions in the header files
and interrupt handling in C is compiler dependent. Please confirm with the C compiler documen-
tation for more details.
These code examples assume that the part specific header file is included before compilation.
For I/O registers located in extended I/O map, "IN", "OUT", "SBIS", "SBIC", "CBI", and "SBI"
8 AT90USB64/128
7593D–AVR–07/06
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