ATTINY167-15XD Atmel, ATTINY167-15XD Datasheet - Page 29

• Manufacturer Part Number: ATTINY167-15XD
• Description: MCU AVR 16K FLASH 15MHZ 20-TSSOP
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY167-15XD

• 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: 20-TSSOP
• 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

4.2.5
7728G–AVR–06/10
Low-frequency Crystal Oscillator
The CKSEL0 Fuse together with the SUT1..0 Fuses or CSEL0 together with CSUT1..0 field
select the start-up times as shown in
Table 4-7.
Notes:
To use a 32.768 kHz watch crystal as the clock source for the device, the low-frequency crys-
tal oscillator must be selected by setting CKSEL fuses or CSEL field as shown in
page
Crystal Oscillator Application Note for details on oscillator operation and how to choose appro-
priate values for C1 and C2.
The 32.768 kHz watch crystal oscillator can be used by the asynchronous timer if the
(high-frequency) Crystal Oscillator is not running or if the External Clock is not enabed
”Enable/Disable Clock Source” on page
itself this low-frequency crystal oscillator.
CKSEL0
CSEL0
0
0
0
0
1
1
1
1
25. The crystal should be connected as shown in
1. Flash Fuse bits.
2. CLKSELR register bits.
3. These options should only be used when not operating close to the maximum frequency of
4. These options are intended for use with ceramic resonators and will ensure frequency stabil-
5. This setting is only available if RSTDISBL fuse is not set.
(2)
(1)
the device, and only if frequency stability at start-up is not important for the application.
These options are not suitable for crystals.
ity at start-up. They can also be used with crystals when not operating close to the maximum
frequency of the device, and if frequency stability at start-up is not important for the
application.
Start-up Times for the Crystal Oscillator Clock Selection
CSUT1..0
SUT1..0
10
01
00
01
11
00
10
11
(5)
(5)
(1)
(2)
Start-up Time from
Power-down/save
16K (16384) CK
16K (16384) CK
16K (16384) CK
1K (1024) CK
1K (1024)CK
1K (1024)CK
258 CK
258 CK
Table
(3)
(3)
32.). The asynchronous timer is then able to start
(4)
(4)
4-7.
(4)
Additional Delay
14CK + 4.1 ms
14CK + 4.1 ms
14CK + 4.1 ms
14CK + 65 ms
14CK + 65 ms
14CK + 65 ms
(Vcc = 5.0V)
from Reset
14CK
14CK
ATtiny87/ATtiny167
Figure
4-3. Refer to the 32.768 kHz
Recommended Usage
Ceramic resonator, fast
rising power
Ceramic resonator, slowly
rising power
Ceramic resonator, BOD
enabled
Ceramic resonator, fast
rising power
Ceramic resonator, slowly
rising power
Crystal Oscillator, BOD
enabled
Crystal Oscillator, fast
rising power
Crystal Oscillator, slowly
rising power
Table 4-1 on
(See
29