ATmega8A Atmel Corporation, ATmega8A Datasheet - Page 290
ATmega8A
Manufacturer Part Number
ATmega8A
Description
Manufacturer
Atmel Corporation
Specifications of ATmega8A
Flash (kbytes)
8 Kbytes
Pin Count
32
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
12
Hardware Qtouch Acquisition
No
Max I/o Pins
23
Ext Interrupts
2
Usb Speed
No
Usb Interface
No
Spi
1
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 85
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
Pwm Channels
3
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA8A
Manufacturer:
ATMEL
Quantity:
530
Company:
Part Number:
ATmega8A-ANR
Manufacturer:
Atmel
Quantity:
2 034
Company:
Part Number:
ATmega8A-AU
Manufacturer:
NXP
Quantity:
1 001
Company:
Part Number:
ATmega8A-AU
Manufacturer:
ATM
Quantity:
10 000
Part Number:
ATmega8A-AU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
ATmega8A-MNR
Manufacturer:
Atmel
Quantity:
9 939
Part Number:
ATmega8A-MU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Part Number:
ATmega8A-PU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
27. Register Summary (Continued)
Note:
8159D–AVR–02/11
0x01 (0x21)
0x00 (0x20)
Address
1. Refer to the USART description for details on how to access UBRRH and UCSRC.
2. For compatibility with future devices, reserved bits should be written to zero if accessed. Reserved I/O memory addresses
3. Some of the Status Flags are cleared by writing a logical one to them. Note that the CBI and SBI instructions will operate on
should never be written.
all bits in the I/O Register, writing a one back into any flag read as set, thus clearing the flag. The CBI and SBI instructions
work with registers 0x00 to 0x1F only.
Name
TWSR
TWBR
TWS7
Bit 7
TWS6
Bit 6
TWS5
Bit 5
Two-wire Serial Interface Bit Rate Register
TWS4
Bit 4
TWS3
Bit 3
Bit 2
–
TWPS1
Bit 1
TWPS0
Bit 0
ATmega8A
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