AT90USB162-16MU Atmel, AT90USB162-16MU Datasheet - Page 221

• Manufacturer Part Number: AT90USB162-16MU
• Description: MCU AVR USB 16K FLASH 32-QFN
• Manufacturer: Atmel
• Series: AVR® 90USBr

Specifications of AT90USB162-16MU

• 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-TQFN
• Controller Family/series: AVR USB
• No. Of I/o's: 22
• Eeprom Memory Size: 512Byte
• Ram Memory Size: 512Byte
• Cpu Speed: 16MHz
• Rohs Compliant: Yes
• 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
• 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: Details

External Hardware
conditions
7707A–AVR–01/07
is programmed, the Reset Vector will always point to the Boot Loader Reset and the fuse can
only be changed through the serial or parallel programming interface.
Table 25. Boot Reset Fuse
Note:
The Hardware Boot Enable Fuse (HWBE) can be programmed (See Table 26) so that upon spe-
cial hardware conditions under reset, the bootloader execution is forced after reset.
Table 26. Hardware Boot Enable Fuse
Note:
When the HWBE fuse is enable the
pled during reset rising edge. When
will be set as the Boot Loader Reset address and the Boot Loader will be executed (See Figures
93).
Figure 93. Boot Process Description
BOOTRST
HWBE
1
0
1
0
1. “1” means unprogrammed, “0” means programmed
1. “1” means unprogrammed, “0” means programmed
Reset Address
Reset Vector = Application Reset (address 0x0000)
Reset Vector = Boot Loader Reset (see Table 29 on page 229)
Reset Address
PD7/HWB pin can not be used to force Boot Loader execution after reset
PD7/HWB pin is used during reset to force bootloader execution after reset
Reset Vector = Application Reset
BOOTRST ?
HWBE
(1)
?
PD7
PD7
(1)
/HWB pin is ‘0’ during reset rising edge, the reset vector
/HWB pin is configured as input during reset and sam-
PD7/HWB
RESET
Ext. Hardware
Conditions ?
Reset Vector =Boot Lhoader Reset
t
SHRH
t
HHRH
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