ATmega88 Automotive Atmel Corporation, ATmega88 Automotive Datasheet - Page 32
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ATmega88 Automotive
Manufacturer Part Number
ATmega88 Automotive
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT90CAN128_AUTOMOTIVE.pdf
(225 pages)
2.ATMEGA168_AUTOMOTIVE.pdf
(19 pages)
3.ATMEGA168_AUTOMOTIVE.pdf
(340 pages)
4.ATMEGA88_AUTOMOTIVE.pdf
(10 pages)
Specifications of ATmega88 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
23
Ext Interrupts
24
Usb Speed
No
Usb Interface
No
Spi
2
Twi (i2c)
1
Uart
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
No
Crypto Engine
No
Sram (kbytes)
1
Eeprom (bytes)
512
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 150
I/o Supply Class
2.7 to 5.5
Operating Voltage (vcc)
2.7 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
3
Output Compare Channels
6
Input Capture Channels
1
Pwm Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
- AT90CAN128_AUTOMOTIVE PDF datasheet
- ATMEGA168_AUTOMOTIVE PDF datasheet #2
- ATMEGA168_AUTOMOTIVE PDF datasheet #3
- ATMEGA88_AUTOMOTIVE PDF datasheet #4
- Current page: 32 of 340
- Download datasheet (6Mb)
6.7
6.8
32
128 kHz Internal Oscillator
External Clock
ATmega48/88/168 Automotive
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 6-10.
Note:
When this clock source is selected, start-up times are determined by the SUT Fuses as shown in
Table
Table 6-11.
Note:
The device can utilize a external clock source as shown in
external clock, the CKSEL Fuses must be programmed as shown in
Table 6-12.
Notes:
BOD enabled
Fast rising power
Slowly rising power
Frequency Range
Power Conditions
6-11.
1. The frequency is preliminary value. Actual value is TBD.
1. If the RSTDISBL fuse is programmed, this start-up time will be increased to
1. The frequency ranges are preliminary values. Actual values are TBD.
2. If 8 MHz frequency exceeds the specification of the device (depends on V
14CK + 4.1 ms to ensure programming mode can be entered.
Fuse can be programmed in order to divide the internal frequency by 8. It must be ensured
that the resulting divided clock meets the frequency specification of the device.
128 kHz Internal Oscillator Operating Modes
Start-up Times for the 128 kHz Internal Oscillator
Full Swing Crystal Oscillator operating modes
0 - 100
(1)
Nominal Frequency
(MHz)
128 kHz
Power-down and Power-save
Start-up Time from
CKSEL3..0
Reserved
6 CK
6 CK
6 CK
0000
Table
Recommended Range for Capacitors C1
6-10.
Figure
(2)
Additional Delay from
14CK + 64 ms
14CK + 4 ms
6-4. To run the device on an
14CK
and C2 (pF)
Table
Reset
12 - 22
CKSEL3..0
(1)
6-12.
0011
CC
), the CKDIV8
7530I–AVR–02/10
SUT1..0
00
01
10
11
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