ATtiny167 Atmel Corporation, ATtiny167 Datasheet - Page 30

• Manufacturer Part Number: ATtiny167
• Manufacturer: Atmel Corporation

Specifications of ATtiny167

• Flash (kbytes): 16 Kbytes
• Pin Count: 20
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 8
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 16
• Ext Interrupts: 16
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Lin: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 11
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 0.5
• Eeprom (bytes): 512
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 3
• Input Capture Channels: 1
• Pwm Channels: 9
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

4.2.6
30
ATtiny87/ATtiny167
External Clock
Figure 4-3.
When this oscillator is selected, start-up times are determined by the SUT fuses or by CSUT
field as shown in
Table 4-8.
Notes:
To drive the device from this external clock source, CLKI should be driven as shown in
4-4. To run the device on an external clock, the CKSEL Fuses or CSEL field must be pro-
grammed as shown in
Figure 4-4.
When this clock source is selected, start-up times are determined by the SUT Fuses or CSUT
field as shown in
This external clock can be used by the asynchronous timer if the high or low frequency Crystal
Oscillator is not running
timer is then able to enable this input.
CSUT[1:0]
SUT[1:0]
00
01
10
11
1. Flash Fuse bits.
2. CLKSELR register bits.
3. These options should only be used if frequency stability at start-up is not important for the
(1)
application.
(2)
Low-frequency Crystal Oscillator Connections
Start-up Times for the Low Frequency Crystal Oscillator Clock Selection
External Clock Drive Configuration
Start-up Time from
Power-down/save
Table
Table
32K (32768) CK
1K (1024) CK
1K (1024) CK
Table 4-1 on page
4-8.
4-9.
(See ”Enable/Disable Clock Source” on page
12-22 pF capacitors may be necessary if parasitic
impedance (pads, wires & PCB) is very low.
(3)
(3)
External
32.768 KHz
Signal
Clock
~
C1=12-22 pF
C2=12-22 pF
Additional Delay from
Reset (V
25.
4.1 ms
65 ms
65 ms
CC
= 5.0V)
Reserved
(XTAL2)
(XTAL1)
(CLKO)
CLKI
GND
XTAL2
XTAL1
GND
Recommended usage
Fast rising power or BOD enabled
Slowly rising power
Stable frequency at start-up
32.). The asynchronous
8265B–AVR–09/10
Figure