AT90USB162-16AU Atmel, AT90USB162-16AU Datasheet - Page 41
![MCU AVR USB 16K FLASH 32-TQFP](/photos/6/91/69154/313-32-tqfp_sml.jpg)
AT90USB162-16AU
Manufacturer Part Number
AT90USB162-16AU
Description
MCU AVR USB 16K FLASH 32-TQFP
Manufacturer
Atmel
Series
AVR® 90USBr
Datasheet
1.AT90USB82-16MU.pdf
(307 pages)
Specifications of AT90USB162-16AU
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
No. Of I/o's
22
Eeprom Memory Size
512Byte
Ram Memory Size
512Byte
Cpu Speed
16MHz
No. Of Timers
2
Embedded Interface Type
SPI, USART
Rohs Compliant
Yes
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32ATSTK526 - 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
Available stocks
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Manufacturer
Quantity
Price
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Part Number:
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Manufacturer:
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Quantity:
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Manufacturer:
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8. Power Management and Sleep Modes
8.0.1
7707F–AVR–11/10
Sleep Mode Control Register – SMCR
Sleep modes enable the application to shut down unused modules in the MCU, thereby saving
power. The AVR provides various sleep modes allowing the user to tailor the power consump-
tion to the application’s requirements.
To enter any of the five sleep modes, the SE bit in SMCR must be written to logic one and a
SLEEP instruction must be executed. The SM2, SM1, and SM0 bits in the SMCR Register select
which sleep mode (Idle, Power-down, Power-save, Standby or Extended standby) will be acti-
vated by the SLEEP instruction. See
while the MCU is in a sleep mode, the MCU wakes up. The MCU is then halted for four cycles in
addition to the start-up time, executes the interrupt routine, and resumes execution from the
instruction following SLEEP. The contents of the Register File and SRAM are unaltered when
the device wakes up from sleep. If a reset occurs during sleep mode, the MCU wakes up and
executes from the Reset Vector.
Figure 6-1 on page 25
distribution. The figure is helpful in selecting an appropriate sleep mode.
The Sleep Mode Control Register contains control bits for power management.
• Bit 7-4 - Reserved bits
These bits are reserved and will always read as zero.
• Bits 3-1 – SM2..0: Sleep Mode Select Bits 2, 1, and 0
These bits select between the five available sleep modes as shown in
Table 8-1.
Note:
• Bit 0– SE: Sleep Enable
The SE bit must be written to logic one to make the MCU enter the sleep mode when the SLEEP
instruction is executed. To avoid the MCU entering the sleep mode unless it is the programmer’s
Bit
Read/Write
Initial Value
SM2
0
0
0
0
1
1
1
1
1. Standby modes are only recommended for use with external crystals or resonators.
7
–
R
0
Sleep Mode Select
SM1
0
0
1
1
0
0
1
1
6
–
R
0
presents the different clock systems in the AT90USB82/162, and their
5
–
R
0
SM0
0
1
0
1
0
1
0
1
Table 8-1
4
–
R
0
Sleep Mode
Idle
Reserved
Power-down
Power-save
Reserved
Reserved
Standby
Extended Standby
for a summary. If an enabled interrupt occurs
3
SM2
R/W
0
(1)
2
SM1
R/W
0
(1)
AT90USB82/162
1
SM0
R/W
0
Table
8-1.
0
SE
R/W
0
SMCR
41
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