ATMEGA8L-8MU Atmel, ATMEGA8L-8MU Datasheet - Page 152
![IC AVR MCU 8K 8MHZ 3V 32-QFN](/photos/12/13/121317/atmega8l-8mu_sml.jpg)
ATMEGA8L-8MU
Manufacturer Part Number
ATMEGA8L-8MU
Description
IC AVR MCU 8K 8MHZ 3V 32-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA8L-8MU
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 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
Package
32MLF EP
Device Core
AVR
Family Name
ATmega
Maximum Speed
8 MHz
Operating Supply Voltage
3.3|5 V
Data Bus Width
8 Bit
Number Of Programmable I/os
23
Interface Type
SPI/TWI/USART
On-chip Adc
8-chx10-bit
Number Of Timers
3
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATMEGA8L-8MU
Manufacturer:
AT
Quantity:
20 000
- Current page: 152 of 302
- Download datasheet (6Mb)
USART Baud Rate
Registers – UBRRL
and UBRRHs
152
ATmega8(L)
• Bit 0 – UCPOL: Clock Polarity
This bit is used for Synchronous mode only. Write this bit to zero when Asynchronous mode is
used. The UCPOL bit sets the relationship between data output change and data input sample,
and the synchronous clock (XCK).
Table 59. UCPOL Bit Settings
The UBRRH Register shares the same I/O location as the UCSRC Register. See the
UBRRH/UCSRC Registers” on page 146
• Bit 15 – URSEL: Register Select
This bit selects between accessing the UBRRH or the UCSRC Register. It is read as zero when
reading UBRRH. The URSEL must be zero when writing the UBRRH.
• Bit 14:12 – Reserved Bits
These bits are reserved for future use. For compatibility with future devices, these bit must be
written to zero when UBRRH is written.
• Bit 11:0 – UBRR11:0: USART Baud Rate Register
This is a 12-bit register which contains the USART baud rate. The UBRRH contains the four
most significant bits, and the UBRRL contains the eight least significant bits of the USART baud
rate. Ongoing transmissions by the Transmitter and Receiver will be corrupted if the baud rate is
changed. Writing UBRRL will trigger an immediate update of the baud rate prescaler.
Bit
Read/Write
Initial Value
UCPOL
0
1
Transmitted Data Changed
(Output of TxD Pin)
Rising XCK Edge
Falling XCK Edge
URSEL
R/W
R/W
15
7
0
0
R/W
14
R
–
6
0
0
R/W
13
R
–
5
0
0
R/W
12
R
–
4
0
0
UBRR[7:0]
section which describes how to access this register.
R/W
R/W
11
3
0
0
Received Data Sampled
(Input on RxD Pin)
Falling XCK Edge
Rising XCK Edge
R/W
R/W
10
2
0
0
UBRR[11:8]
R/W
R/W
9
1
0
0
R/W
R/W
8
0
0
0
UBRRH
UBRRL
2486Z–AVR–02/11
“Accessing
Related parts for ATMEGA8L-8MU
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![ATMEGA8L](/images/no-image3.png)
Part Number:
Description:
8-bit AVR with 8K Bytes In-System Programmable Flash
Manufacturer:
ATMEL [ATMEL Corporation]
Datasheet:
![ATMEGA8L-8PU](/photos/7/21/72189/453-28-dip_tmb.jpg)
Part Number:
Description:
IC AVR MCU 8K 8MHZ 3V 28DIP
Manufacturer:
Atmel
Datasheet:
![ATMEGA8L-8AC](/photos/6/91/69154/313-32-tqfp_tmb.jpg)
Part Number:
Description:
IC AVR MCU 8K LV 8MHZ COM 32TQFP
Manufacturer:
Atmel
Datasheet:
![ATMEGA8L-8AI](/photos/6/91/69154/313-32-tqfp_tmb.jpg)
Part Number:
Description:
IC AVR MCU 8K LV 8MHZ IND 32TQFP
Manufacturer:
Atmel
Datasheet:
![ATMEGA8L-8PC](/photos/7/21/72189/453-28-dip_tmb.jpg)
Part Number:
Description:
IC AVR MCU 8K LV 8MHZ COM 28-DIP
Manufacturer:
Atmel
Datasheet:
![ATMEGA8L-8PI](/photos/7/21/72189/453-28-dip_tmb.jpg)
Part Number:
Description:
IC AVR MCU 8K LV 8MHZ IND 28-DIP
Manufacturer:
Atmel
Datasheet:
![ATMEGA8L-8MC](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
IC AVR MCU 8K LV 8MHZ COM 32-QFN
Manufacturer:
Atmel
Datasheet:
![ATMEGA8L-8MI](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
IC AVR MCU 8K LV 8MHZ IND 32-QFN
Manufacturer:
Atmel
Datasheet:
![ATMEGA8L-8AUR](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
MCU AVR 8KB FLASH 8MHZ 32TQFP
Manufacturer:
Atmel
Datasheet:
![ATMEGA8L-8MUR](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
MCU AVR 8KB FLASH 8MHZ 32QFN
Manufacturer:
Atmel
Datasheet:
![ATMEGA8L-8AJ](/photos/6/91/69154/313-32-tqfp_tmb.jpg)
Part Number:
Description:
IC MCU AVR 8K 5V 8MHZ 32-TQFP
Manufacturer:
Atmel
Datasheet:
![ATMEGA8L-8MJ](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
IC MCU AVR 8K 5V 8MHZ 32-QFN
Manufacturer:
Atmel
Datasheet:
![ATMEGA8L-8PJ](/photos/7/21/72189/453-28-dip_tmb.jpg)
Part Number:
Description:
IC MCU AVR 8K 5V 8MHZ 28-DIP
Manufacturer:
Atmel
Datasheet: