ATTINY167-15MD Atmel, ATTINY167-15MD Datasheet - Page 32
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ATTINY167-15MD
Manufacturer Part Number
ATTINY167-15MD
Description
MCU AVR 16K FLASH 15MHZ 32-QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY167-15MD.pdf
(283 pages)
Specifications of ATTINY167-15MD
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
I²C, LIN, SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
16
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 150°C
Package / Case
32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
Processor Series
ATTINY1x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
512 B
Maximum Clock Frequency
16 MHz
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
Minimum Operating Temperature
- 40 C
For Use With
ATSTK600-SOIC - STK600 SOCKET/ADAPTER FOR SOIC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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4.3.2
4.3.2.1
4.3.2.2
4.3.2.3
4.3.3
32
ATtiny87/ATtiny167
CLKSELR Register
Enable/Disable Clock Source
Fuses Substitution
Source Selection
Source Recovering
At reset, bits of the Low Fuse Byte are copied into the CLKSELR register. The content of this
register can subsequently be user modified to overwrite the default values from the Low Fuse
Byte. CKSEL3..0, SUT1..0 and CKOUT fuses correspond respectively to CSEL3..0, CSUT1:0
and ~(COUT) bits of the CLKSELR register as shown in
The available codes of clock source are given in
Figure 4-5.
The CLKSELR register contains the CSEL, CSUT and COUT values which will be used by the
‘Enable/Disable Clock Source’, ‘Request for Clock Availability’ or ‘Clock Source Switching’
commands.
The ‘Recover System Clock Source’ command updates the CKSEL field of CLKSELR register
(See “System Clock Source Recovering” on page
The ‘Enable Clock Source’ command selects and enables a clock source configured by the
settings in the CLKSELR register. CSEL3..0 will select the clock source and CSUT1:0 will
select the start-up time (just as CKSEL and SUT fuse bits do). To be sure that a clock source
is operating, the ‘Request for Clock Availability ’ command must be executed after the ‘Enable
• Command status return. The ‘Request Clock Availability ’ command returns status via the
CLKRDY bit in the CLKCSR register. The ‘Recover System Clock Source ’ command
returns a code of the current clock source in the CLKSELR register. This information is
used in the supervisory software routines as shown in
– ‘Recover System Clock Source’,
– ‘Enable Watchdog in Automatic Reload Mode’.
Fuse Low Byte
SCLKRq
Fuse:
Fuses substitution and Clock Source Selection
(
*
)
: Command of Clock Control & Status Register
SCLKRq
Reset
(
*
)
CLKSELR
Register:
CKSEL[3..0]
SUT[1..0]
Table 4-1 on page
33.).
Figure 4-5 on page
SEL-0
SEL-1
SEL-2
SEL-n
Section 4.3.7 on page
CKOUT
EN-0
EN-1
EN-2
EN-n
25.
Configuration
Configuration
Selected
Current
Switch
Clock
32.
7728G–AVR–06/10
33.
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