ATtiny24 Automotive Atmel Corporation, ATtiny24 Automotive Datasheet - Page 30
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ATtiny24 Automotive
Manufacturer Part Number
ATtiny24 Automotive
Description
Manufacturer
Atmel Corporation
Specifications of ATtiny24 Automotive
Flash (kbytes)
2 Kbytes
Pin Count
14
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
4
Hardware Qtouch Acquisition
No
Max I/o Pins
12
Ext Interrupts
12
Usb Speed
No
Usb Interface
No
Spi
1
Twi (i2c)
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
0.12
Eeprom (bytes)
128
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 125
I/o Supply Class
2.7 to 5.5
Operating Voltage (vcc)
2.7 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
2
Output Compare Channels
4
Input Capture Channels
1
Pwm Channels
4
32khz Rtc
No
Calibrated Rc Oscillator
Yes
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Atmel ATtiny24/44/84 [Preliminary]
Figure 7-3.
When this clock source is selected, start-up times are determined by the SUT Fuses as shown
in
Table 7-8.
When applying an external clock, sudden changes in the applied clock frequency must be
avoided to ensure stable operation of the MCU. A variation in frequency of more than 2% from
one clock cycle to the next can lead to unpredictable behavior. It is required to ensure that the
MCU is kept in reset during such changes in the clock frequency.
Note that the system clock prescaler can be used to implement run-time changes of the inter-
nal clock frequency while still ensuring stable operation. See
page 31
SUT1..0
Table 7-8 on page
00
01
10
11
for details.
Power-down and Power-save
External Clock Drive Configuration
Start-up Times for the External Clock Selection
Start-up Time from
30.
6CK
6CK
6CK
EXTERNAL
SIGNAL
CLOCK
Additional Delay from
Reserved
14CK + 64ms
14CK + 4ms
CLKI
GND
Reset
14CK
“System Clock Prescaler” on
BOD enabled
Fast rising power
Slowly rising power
Recommended Usage
7701E–AVR–02/11
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