AT90USB162-16AUR Atmel, AT90USB162-16AUR Datasheet - Page 84
![IC AVR MCU 16K FLASH 32TQFP](/photos/6/91/69154/313-32-tqfp_sml.jpg)
AT90USB162-16AUR
Manufacturer Part Number
AT90USB162-16AUR
Description
IC AVR MCU 16K FLASH 32TQFP
Manufacturer
Atmel
Series
AVR® 90USBr
Datasheet
1.AT90USB82-16MU.pdf
(307 pages)
Specifications of AT90USB162-16AUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
EBI/EMI, PS/2, SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
22
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-TQFP, 32-VQFP
Processor Series
AT90USBx
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
SPI/USART/debugWIRE
Maximum Clock Frequency
16 MHz
Number Of Programmable I/os
22
Number Of Timers
2
Operating Supply Voltage
2.7 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATSTK525, ATSTK526, ATAVRISP2, ATAVRONEKIT, AT90USBKEY, ATEVK525
Minimum Operating Temperature
- 40 C
Cpu Family
AT90
Device Core
AVR
Device Core Size
8b
Frequency (max)
16MHz
Total Internal Ram Size
512Byte
# I/os (max)
22
Number Of Timers - General Purpose
2
Operating Supply Voltage (typ)
3.3/5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
2.7V
Instruction Set Architecture
RISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
32
Package Type
TQFP
For Use With
ATSTK600-TQFP32 - STK600 SOCKET/ADAPTER 32-TQFPATSTK526 - KIT STARTER FOR AT90USB82/162ATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVRATSTK525 - KIT STARTER FOR AT90USBAT90USBKEY2 - KIT DEMO FOR AT90USB
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
AT90USB162-16AU
AT90USB162-16AURTR
AT90USB162-16AUTR
AT90USB162-16AUTR
AT90USB162-16AURTR
AT90USB162-16AUTR
AT90USB162-16AUTR
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT90USB162-16AUR
Manufacturer:
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Quantity:
2 751
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12. External Interrupts
12.0.1
84
AT90USB82/162
External Interrupt Control Register A – EICRA
The External Interrupts are triggered by the INT7:0 pin or any of the PCINT12..0 pins. Observe
that, if enabled, the interrupts will trigger even if the INT7:0 or PCINT12..0 pins are configured as
outputs. This feature provides a way of generating a software interrupt.
The Pin change interrupt PCI0 will trigger if any enabled PCINT7:0 pin toggles. PCMSK0 Regis-
ter control which pins contribute to the pin change interrupts. The Pin change interrupt PCI1 will
trigger if any enabled PCINT12:8 pin toggles. PCMSK1 Register control which pins contribute to
the pin change interrupts. Pin change interrupts on PCINT12 ..0 are detected asynchronously.
This implies that these interrupts can be used for waking the part also from sleep modes other
than Idle mode.
The External Interrupts can be triggered by a falling or rising edge or a low level. This is set up
as indicated in the specification for the External Interrupt Control Registers – EICRA (INT3:0)
and EICRB (INT7:4). When the external interrupt is enabled and is configured as level triggered,
the interrupt will trigger as long as the pin is held low. Note that recognition of falling or rising
edge interrupts on INT7:4 requires the presence of an I/O clock, described in
Clock Options” on page
asynchronously. This implies that these interrupts can be used for waking the part also from
sleep modes other than Idle mode. The I/O clock is halted in all sleep modes except Idle mode.
Note that if a level triggered interrupt is used for wake-up from Power-down, the required level
must be held long enough for the MCU to complete the wake-up to trigger the level interrupt. If
the level disappears before the end of the Start-up Time, the MCU will still wake up, but no inter-
rupt will be generated. The start-up time is defined by the SUT and CKSEL Fuses as described
in
The External Interrupt Control Register A contains control bits for interrupt sense control.
• Bits 7..0 – ISC31, ISC30 – ISC00, ISC00: External Interrupt 3 - 0 Sense Control Bits
The External Interrupts 3 - 0 are activated by the external pins INT3:0 if the SREG I-flag and the
corresponding interrupt mask in the EIMSK is set. The level and edges on the external pins that
activate the interrupts are defined in
nously. Pulses on INT3:0 pins wider than the minimum pulse width given in
generate an interrupt. Shorter pulses are not guaranteed to generate an interrupt. If low level
interrupt is selected, the low level must be held until the completion of the currently executing
instruction to generate an interrupt. If enabled, a level triggered interrupt will generate an inter-
rupt request as long as the pin is held low. When changing the ISCn bit, an interrupt can occur.
Therefore, it is recommended to first disable INTn by clearing its Interrupt Enable bit in the
EIMSK Register. Then, the ISCn bit can be changed. Finally, the INTn interrupt flag should be
cleared by writing a logical one to its Interrupt Flag bit (INTFn) in the EIFR Register before the
interrupt is re-enabled.
Bit
Read/Write
Initial Value
“System Clock and Clock Options” on page
7
ISC31
R/W
0
6
ISC30
R/W
0
25. Low level interrupts and the edge interrupt on INT3:0 are detected
5
ISC21
R/W
0
Table
4
ISC20
R/W
0
12-1. Edges on INT3..INT0 are registered asynchro-
25.
3
ISC11
R/W
0
2
ISC10
R/W
0
1
ISC01
R/W
0
“System Clock and
0
ISC00
R/W
0
Table 12-2
7707F–AVR–11/10
EICRA
will
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