AT90USB162-16AU Atmel, AT90USB162-16AU Datasheet - Page 47

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

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

9.3
7707F–AVR–11/10
Power-on Reset
Figure 9-1.
Table 9-1.
Notes:
A Power-on Reset (POR) pulse is generated by an On-chip detection circuit. The detection level
is defined in
POR circuit can be used to trigger the start-up Reset, as well as to detect a failure in supply
voltage.
A Power-on Reset (POR) circuit ensures that the device is reset from Power-on. Reaching the
Power-on Reset threshold voltage invokes the delay counter, which determines how long the
Symbol
V
V
V
V
t
CCRR
RST
POR
POT
RST
BODLEVEL [2..0]
1. The POR will not work unless the supply voltage has been below VPOT (falling)
Power-on Reset Threshold Voltage (rising)
Power-on Reset Threshold Voltage (falling)
V
Reset signal
V
Reset signal
Minimum pulse width on RESET Pin
RESET Pin Threshold Voltage
CC
CC
Table
Reset Logic
Reset Characteristics
Start Voltage to ensure internal Power-on
Rise Rate to ensure internal Power_on
9-1. The POR is activated whenever V
Pull-up Resistor
Reset Detection
USB Device
FILTER
SPIKE
Parameter
CKSEL[3:0]
Power-on Reset
Reset Circuit
SUT[1:0]
Watchdog
Brown-out
Oscillator
Generator
Circuit
Clock
CK
Register (MCUSR)
(1)
MCU Status
DATA BUS
Delay Counters
Condition
5V, 25°C
CC
is below the detection level. The
AT90USB82/162
Min
-0.1
Vcc
0.8
0.2
TIMEOUT
Typ
400
1.4
1.3
Max
0.85
Vcc
2.3
2.3
0.1
Units
V/ms
ns
V
V
V
V
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