ATtiny88 Automotive Atmel Corporation, ATtiny88 Automotive Datasheet - Page 29

• Manufacturer Part Number: ATtiny88 Automotive
• Manufacturer: Atmel Corporation

Specifications of ATtiny88 Automotive

• Flash (kbytes): 8 Kbytes
• Pin Count: 32
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 12
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 28
• Ext Interrupts: 28
• 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): 0.5
• Eeprom (bytes): 64
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: Yes
• 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: 2
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

6.4
9157B–AVR–01/10
128 kHz Internal Oscillator
Table 6-3.
Notes:
When this oscillator is selected, start-up times are determined by the SUT Fuses as shown in
the table below.
Table 6-4.
Note:
The 128 kHz internal oscillator is a low power oscillator providing a clock of 128 kHz. The fre-
quency is nominal at 3V and 25 C. This clock may be select as the system clock by
programming the CKSEL Fuses to “11” as shown in
Table 6-5.
When this clock source is selected, start-up times are determined by the SUT Fuses as shown in
Table
Table 6-6.
Note:
SUT1..0
SUT1..0
00
01
10
11
CKSEL1..0
00
01
10
11
6-6.
1. The device is shipped with this option selected.
2. If 8 MHz frequency exceeds the specification of the device (depends on V
1. If the RSTDISBL fuse is programmed, this start-up time will be increased to 14CK + 4 ms to
2.
1. If the RSTDISBL fuse is programmed, this start-up time will be increased to 14CK + 4 ms to
11
CKSEL1..0
Fuse can be programmed in order to divide the internal frequency by 8.
ensure programming mode can be entered.
The device is shipped with this option selected.
ensure programming mode can be entered.
Power Conditions
BOD enabled
Fast rising power
Slowly rising power
Selecting Internal Calibrated Oscillator Mode
10
Start-up Times for the Internal Calibrated Oscillator Clock Selection
Selecting 128 kHz Internal Oscillator Modes
Start-up Times for the 128 kHz Internal Oscillator
Power Conditions
BOD enabled
Fast rising power
Slowly rising power
from Power-down
from Power-down
Start-up Time
Start-up Time
Nominal Frequency
6 CK
6 CK
6 CK
Reserved
Reserved
6 CK
6 CK
6 CK
Nominal Frequency (MHz)
Table
128 kHz
ATtiny88 Automotive
6-5..
(1)(2)
8.0
from Reset (V
Additional Delay
Additional Delay
14CK + 64 ms
14CK + 64 ms
14CK + 4 ms
from Reset
14CK + 4 ms
CC
14CK
14CK
), the CKDIV8
(1)
(1)
CC
= 5.0V)
(2)
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