ATMEGA162-16AC Atmel, ATMEGA162-16AC Datasheet - Page 233

• Manufacturer Part Number: ATMEGA162-16AC
• Description: IC MCU AVR 16K 5V 16MHZ 44-TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA162-16AC

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: EBI/EMI, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 35
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Data Converters: -

Parallel Programming
Enter Programming Mode
Considerations for Efficient
Programming
2513C–AVR–09/02
Table 105. Command Byte Bit Coding
Table 106. No. of Words in a Page and no. of Pages in the Flash
Table 107. No. of Words in a Page and no. of Pages in the EEPROM
The following algorithm puts the device in Parallel Programming mode:
1. Apply 4.5 - 5.5V between V
2. Set RESET to “0” and toggle XTAL1 at least six times.
3. Set the Prog_enable pins listed in Table 103 on page 232 to “0000” and wait at
4. Apply 11.5 - 12.5V to RESET. Any activity on Prog_enable pins within 100 ns
The loaded command and address are retained in the device during programming. For
efficient programming, the following should be considered.
•
•
•
8K words (16K bytes)
EEPROM Size
least 100 ns.
after +12V has been applied to RESET, will cause the device to fail entering Pro-
gramming mode.
The command needs only be loaded once when writing or reading multiple memory
locations.
Skip writing the data value 0xFF, that is the contents of the entire EEPROM (unless
the EESAVE Fuse is programmed) and Flash after a Chip Erase.
Address high byte needs only be loaded before programming or reading a new 256-
word window in Flash or 256 byte EEPROM. This consideration also applies to
Signature bytes reading.
512 bytes
Command Byte
Flash Size
1000 0000
0100 0000
0010 0000
0001 0000
0001 0001
0000 1000
0000 0100
0000 0010
0000 0011
Page Size
4 bytes
Page Size
64 words
Command Executed
Chip Erase
Write Fuse Bits
Write Lock Bits
Write Flash
Write EEPROM
Read Signature Bytes and Calibration byte
Read Fuse and Lock Bits
Read Flash
Read EEPROM
CC
PCWORD
EEA[1:0]
and GND.
PCWORD
PC[5:0]
No. of pages
No. of Pages
ATmega162(V/U/L)
128
128
PCPAGE
EEA[8:2]
PCPAGE
PC[12:6]
EEAMSB
PCMSB
8
12
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