AT90USB1286 Atmel Corporation, AT90USB1286 Datasheet - Page 62
AT90USB1286
Manufacturer Part Number
AT90USB1286
Description
Manufacturer
Atmel Corporation
Specifications of AT90USB1286
Flash (kbytes)
128 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
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)
8
Eeprom (bytes)
4096
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT90USB1286
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
AT90USB1286-AU
Manufacturer:
SOUTH
Quantity:
650
Part Number:
AT90USB1286-AU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
AT90USB1286-AUR
Manufacturer:
Atmel
Quantity:
747
Company:
Part Number:
AT90USB1286-MU
Manufacturer:
ATMEL
Quantity:
716
Part Number:
AT90USB1286-MU
Manufacturer:
AT
Quantity:
20 000
Company:
Part Number:
AT90USB1286-MUR
Manufacturer:
Atmel
Quantity:
4 932
- Current page: 62 of 461
- Download datasheet (5Mb)
8.7
8.7.1
62
Internal Voltage Reference
AT90USB64/128
Voltage Reference Enable Signals and Start-up Time
• Bit 2 – BORF: Brown-out Reset Flag
This bit is set if a Brown-out Reset occurs. The bit is reset by a Power-on Reset, or by writing a
logic zero to the flag.
• Bit 1 – EXTRF: External Reset Flag
This bit is set if an External Reset occurs. The bit is reset by a Power-on Reset, or by writing a
logic zero to the flag.
• Bit 0 – PORF: Power-on Reset Flag
This bit is set if a Power-on Reset occurs. The bit is reset only by writing a logic zero to the flag.
To make use of the Reset Flags to identify a reset condition, the user should read and then
Reset the MCUSR as early as possible in the program. If the register is cleared before another
reset occurs, the source of the reset can be found by examining the Reset Flags.
AT90USB64/128 features an internal bandgap reference. This reference is used for Brown-out
Detection, and it can be used as an input to the Analog Comparator or the ADC.
The voltage reference has a start-up time that may influence the way it should be used. The
start-up time is given in
reference is on during the following situations:
Thus, when the BOD is not enabled, after setting the ACBG bit or enabling the ADC, the user
must always allow the reference to start up before the output from the Analog Comparator or
ADC is used. To reduce power consumption in Power-down mode, the user can avoid the three
conditions above to ensure that the reference is turned off before entering Power-down mode.
Table 8-4.
Symbol
1. When the BOD is enabled (by programming the BODLEVEL [2..0] Fuse).
2. When the bandgap reference is connected to the Analog Comparator (by setting the
3. When the ADC is enabled.
V
t
I
BG
BG
BG
ACBG bit in ACSR).
Parameter
Bandgap reference voltage
Bandgap reference start-up time
Bandgap reference current
consumption
Internal Voltage Reference Characteristics
Table
8-4. To save power, the reference is not always turned on. The
Condition
Min
1.0
Typ
1.1
40
10
Max
1.2
70
Units
7593K–AVR–11/09
µA
µs
V
Related parts for AT90USB1286
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Digital Attenuator 32-Pin FQFP T/R
Manufacturer:
M/A-Com Technology Solutions
Datasheet:
Part Number:
Description:
MLP DIGITAL ATTENUATOR
Manufacturer:
M/A-Com Technology Solutions
Part Number:
Description:
Digital Attenuator 32-Pin FQFP
Manufacturer:
M/A-Com Technology Solutions
Datasheet:
Part Number:
Description:
Digital Attenuator 32-Pin FQFP T/R
Manufacturer:
M/A-Com Technology Solutions
Datasheet:
Part Number:
Description:
MLP DIGITAL ATTENUATOR
Manufacturer:
M/A-Com Technology Solutions
Part Number:
Description:
Digital Attenuator, 50 Db, 6-bit, Ttl Driver, Dc-2.4 Ghz
Manufacturer:
Tyco Electronics
Datasheet:
Part Number:
Description:
Digital Attenuator, 31.5 Db, 6-bit, Ttl Driver, Dc-4.0 Ghz
Manufacturer:
Tyco Electronics
Datasheet:
Part Number:
Description:
Digital Attenuator, 31.5 Db, 6-bit, Ttl Driver, Dc-4.0 Ghz
Manufacturer:
Tyco Electronics
Datasheet:
Part Number:
Description:
Digital Attenuator, 31db, 5-bit, Ttl Driver Dc - 3.0 Ghz
Manufacturer:
Tyco Electronics
Datasheet:
Part Number:
Description:
Digital Attenuator, 15.5 Db, 5-bit, Ttl Driver, Dc-3.5 Ghz
Manufacturer:
Tyco Electronics
Datasheet:
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet: