ATmega162 Atmel Corporation, ATmega162 Datasheet - Page 245

• Manufacturer Part Number: ATmega162
• Manufacturer: Atmel Corporation

Specifications of ATmega162

• Flash (kbytes): 16 Kbytes
• Pin Count: 44
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 35
• Ext Interrupts: 3
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Uart: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• 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 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: 4
• Output Compare Channels: 6
• Input Capture Channels: 2
• Pwm Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

Serial
Downloading
SPI Serial
Programming Pin
Mapping
2513K–AVR–07/09
Table 107. Parallel Programming Characteristics, V
Notes:
Table 108. Pin Mapping SPI Serial Programming
Both the Flash and EEPROM memory arrays can be programmed using the serial SPI bus while
RESET is pulled to GND. The serial interface consists of pins SCK, MOSI (input) and MISO (out-
put). After RESET is set low, the Programming Enable instruction needs to be executed first
before program/erase operations can be executed. NOTE, in
mapping for SPI programming is listed. Not all parts use the SPI pins dedicated for the internal
SPI interface.
Figure 105. SPI Serial Programming and Verify
Note:
When programming the EEPROM, an auto-erase cycle is built into the self-timed programming
operation (in the Serial mode ONLY) and there is no need to first execute the Chip Erase
instruction. The Chip Erase operation turns the content of every memory location in both the
Program and EEPROM arrays into 0xFF.
Symbol
t
t
t
BVDV
OLDV
OHDZ
Symbol
1.
2. t
1. If the device is clocked by the Internal Oscillator, it is no need to connect a clock source to the
MOSI
MISO
SCK
commands.
XTAL1 pin.
t
WLRH_CE
WLRH
Parameter
BS1 Valid to DATA valid
OE Low to DATA Valid
OE High to DATA Tri-stated
is valid for the Write Flash, Write EEPROM, Write Fuse Bits and Write Lock Bits
is valid for the Chip Erase command.
Pins
PB5
PB6
PB7
MOSI
MISO
SCK
XTAL1
RESET
GND
I/O
O
I
I
(1)
CC
= 5 V ± 10% (Continued)
VCC
Min
0
Serial Data out
Table 108 on page
Serial Data in
Description
Serial Clock
Typ
ATmega162/V
Max
250
250
250
Units
ns
ns
ns
245, the pin
245