ATMEGA8L-8PU Atmel, ATMEGA8L-8PU Datasheet - Page 297

• Manufacturer Part Number: ATMEGA8L-8PU
• Description: IC AVR MCU 8K 8MHZ 3V 28DIP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA8L-8PU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 23
• Program Memory Size: 8KB (4K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-DIP (0.300", 7.62mm)
• Cpu Family: ATmega
• Device Core: AVR
• Device Core Size: 8b
• Frequency (max): 8MHz
• Interface Type: SPI/TWI/USART
• Total Internal Ram Size: 1KB
• # I/os (max): 23
• Number Of Timers - General Purpose: 3
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• On-chip Adc: 6-chx10-bit
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Through Hole
• Pin Count: 28
• Package Type: PDIP
• Processor Series: ATMEGA8x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 23
• Number Of Timers: 3
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Minimum Operating Temperature: - 40 C
• Controller Family/series: AVR MEGA
• No. Of I/o's: 23
• Eeprom Memory Size: 512Byte
• Ram Memory Size: 1KB
• Cpu Speed: 8MHz
• Rohs Compliant: Yes
• For Use With: ATSTK600-TQFP32 - STK600 SOCKET/ADAPTER 32-TQFPATSTK600-DIP40 - STK600 SOCKET/ADAPTER 40-PDIP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRISP2 - PROGRAMMER AVR IN SYSTEMATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Changes from Rev.
2486C-03/02 to Rev.
2486D-03/02
Changes from Rev.
2486B-12/01 to Rev.
2486C-03/02
2486O–AVR–10/04
3
1
2 Added “ATmega8 Typical Characteristics” on page 246.
1
2
3
4
5
Updated TWI Chapter
More details regarding use of the TWI bit rate prescaler and a Table 65, “TWI Bit
Rate Prescaler,” on page 170.
Updated Typical Start-up Times.
The following tables has been updated:
Table 5, “Start-up Times for the Crystal Oscillator Clock Selection,” on page 26,
Table 6, “Start-up Times for the Low-frequency Crystal Oscillator Clock Selection,”
on page 26, Table 8, “Start-up Times for the External RC Oscillator Clock Selec-
tion,” on page 27, and Table 12, “Start-up Times for the External Clock Selection,”
on page 30.
Updated TWI Chapter.
More details regarding use of the TWI Power-down operation and using the TWI as
Master with low TWBRR values are added into the datasheet.
Added the note at the end of the “Bit Rate Generator Unit” on page 167.
Added the description at the end of “Address Match Unit” on page 167.
Updated Description of OSCCAL Calibration Byte.
In the datasheet, it was not explained how to take advantage of the calibration bytes
for 2, 4, and 8 MHz Oscillator selections. This is now added in the following
sections:
Improved description of “Oscillator Calibration Register – OSCCAL” on page 29 and
“Calibration Byte” on page 222.
Added Some Preliminary Test Limits and Characterization Data.
Removed some of the TBD’s in the following tables and pages:
Table 3 on page 24, Table 15 on page 36, Table 16 on page 40, Table 17 on page
42, “TA = -40×C to 85×C, VCC = 2.7V to 5.5V (unless otherwise noted)” on page
239, Table 99 on page 241, and Table 102 on page 243.
Updated Programming Figures.
Figure 104 on page 223 and Figure 112 on page 234 are updated to also reflect that
AV
Added a Description on how to Enter Parallel Programming Mode if RESET
Pin is Disabled or if External Oscillators are Selected.
Added a note in section “Enter Programming Mode” on page 225.
CC
must be connected during Programming mode.
ATmega8(L)
297