AT90USB162-16MUR Atmel, AT90USB162-16MUR Datasheet - Page 29
AT90USB162-16MUR
Manufacturer Part Number
AT90USB162-16MUR
Description
IC AVR MCU 16K FLASH 32QFN
Manufacturer
Atmel
Series
AVR® 90USBr
Datasheet
1.AT90USB82-16MU.pdf
(307 pages)
Specifications of AT90USB162-16MUR
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
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
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
For Use With
ATSTK600-TQFP32 - STK600 SOCKET/ADAPTER 32-TQFP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATSTK526 - 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
Other names
AT90USB162-16MURTR
AT90USB162-16MUTR
AT90USB162-16MUTR
AT90USB162-16MUTR
AT90USB162-16MUTR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT90USB162-16MUR
Manufacturer:
TT
Quantity:
400 000
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6.2.5
6.3
6.3.1
6.3.2
7707F–AVR–11/10
Clock Sources
Clock Status Register – CLKSTA
Default Clock Source
Clock Startup Sequence
• Bit 7-2 - Reserved bits
These bits are reserved and will always read as zero.
• Bit 1 – RCON: RC Oscillator On
This bit is set by hardware to one if the RC Oscillator is running.
This bit is set by hardware to zero if the RC Oscillator is stoped.
• Bit 0 – EXTON: External Oscillator / Low Power Oscillator On
This bit is set by hardware to one if the External Oscillator / Low Power Oscillator is running.
This bit is set by hardware to zero if the External Oscillator / Low Power Oscillator is stoped.
The device has the following clock source options, selectable by Flash Fuse bits as shown
below. The clock from the selected source is input to the AVR clock generator, and routed to the
appropriate modules.
Table 6-1.
Note:
The device is shipped with low power crystal oscillator and with the fuse CKDIV8 programmed.
The startup time is set to maximum and time-out period enabled. (CKSEL = "1110", SUT = "01",
CKDIV8 = "0").
Any clock source needs a sufficient V
cycles before it can be considered stable.
To ensure sufficient V
the device reset is released by all other reset sources.
describes the start conditions for the internal reset. The delay (t
Oscillator and the number of cycles in the delay is set by the SUTx and CKSELx fuse bits. The
selectable delays are shown in
Bit
Read/Write
Initial Value
Device Clocking Option
Low Power Crystal Oscillator
Reserved
Reserved
Reserved
Calibrated Internal RC Oscillator
External Clock
Reserved
1. For all fuses “1” means unprogrammed while “0” means programmed.
7
-
R
0
Device Clocking Options Select
CC
6
-
R
0
, the device issues an internal reset with a time-out delay (t
Table
5
-
R
0
CC
6-2. The frequency of the Watchdog Oscillator is voltage
to start oscillating and a minimum number of oscillating
4
-
R
0
(1)
3
-
R
See Bit Description
“On-chip Debug System” on page 45
2
-
R
TOUT
AT90USB82/162
) is timed from the Watchdog
1
RCON
R
1111 - 1000
0111 - 0110
0101 - 0100
0
EXTON
R
CKSEL3..0
0011
0010
0000
0001
TOUT
CLKSTA
) after
29
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