ATmega168 Automotive Atmel Corporation, ATmega168 Automotive Datasheet - Page 174
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ATmega168 Automotive
Manufacturer Part Number
ATmega168 Automotive
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT90CAN128_AUTOMOTIVE.pdf
(225 pages)
2.ATMEGA168_AUTOMOTIVE.pdf
(19 pages)
3.ATMEGA168_AUTOMOTIVE.pdf
(340 pages)
Specifications of ATmega168 Automotive
Flash (kbytes)
16 Kbytes
Pin Count
32
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
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
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- Download datasheet (4Mb)
Figure 21-5. High-voltage Serial Programming Waveforms
21.8.5
21.8.6
21.8.7
21.8.8
21.8.9
21.8.10
174
SDO
PB0
PB1
PB2
PB3
SDI
SCI
SII
Atmel ATtiny24/44/84 [Preliminary]
Programming the EEPROM
Reading the Flash
Reading the EEPROM
Programming and Reading the Fuse and Lock Bits
Reading the Signature Bytes and Calibration Byte
Power-off sequence
0
MSB
MSB
MSB
1
The EEPROM is organized in pages, see
EEPROM, the data are latched into a page buffer. This allows one page of data to be pro-
grammed simultaneously. The programming algorithm for the EEPROM data memory is as
follows (refer to
The algorithm for reading the Flash memory is as follows (refer to
The algorithm for reading the EEPROM memory is as follows (refer to
175):
The algorithms for programming and reading the Fuse Low/High bits and Lock bits are shown
in
The algorithms for reading the Signature bytes and Calibration byte are shown in
on page
Set SCI to “0”. Set RESET to “1”. Turn V
1. Load "Write EEPROM" command.
2. Load EEPROM page buffer.
3. Program EEPROM page. Wait after Instr. 2 until SDO goes high for the page pro-
4. Repeat 2 and 3 until the entire EEPROM is programmed, or until all data has been
5. End page programming by loading "No Operation" command.
1. Load "Read Flash" command.
2. Read Flash Low and High Bytes. The contents at the selected address are available
1. Load "Read EEPROM" command.
2. Read EEPROM byte. The contents at the selected address are available at serial out-
Table 21-15 on page
2
gramming cycle to finish.
programmed.
at serial output SDO.
put SDO.
175.
3
Table 21-15 on page
4
175.
5
175):
6
CC
Table 22-8 on page
power off.
7
LSB
LSB
LSB
8
185. When programming the
9
Table 21-15 on page
10
Table 21-15 on page
7701E–AVR–02/11
Table 21-15
175):
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