ATmega168A Atmel Corporation, ATmega168A Datasheet - Page 266

no-image

ATmega168A

Manufacturer Part Number
ATmega168A
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of ATmega168A

Flash (kbytes)
16 Kbytes
Pin Count
32
Max. Operating Frequency
20 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
23
Ext Interrupts
24
Usb Speed
No
Usb Interface
No
Spi
2
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
Yes
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
3
Output Compare Channels
6
Input Capture Channels
1
Pwm Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATmega168A-AU
Manufacturer:
ATMEL
Quantity:
464
Part Number:
ATmega168A-AU
Manufacturer:
Atmel
Quantity:
10 000
Part Number:
ATmega168A-AU
Manufacturer:
Microchip Technology
Quantity:
12 280
Part Number:
ATmega168A-AUR
Manufacturer:
Atmel
Quantity:
10 000
Part Number:
ATmega168A-AUR
Manufacturer:
Microchip Technology
Quantity:
420
Part Number:
ATmega168A-CCU
Manufacturer:
Atmel
Quantity:
10 000
Part Number:
ATmega168A-CCU
Manufacturer:
Microchip Technology
Quantity:
309
Part Number:
ATmega168A-CCUR
Manufacturer:
Atmel
Quantity:
10 000
Part Number:
ATmega168A-CCUR
Manufacturer:
Microchip Technology
Quantity:
469
Part Number:
ATmega168A-MMH
Manufacturer:
Microchip Technology
Quantity:
2 027
Part Number:
ATmega168A-PU
Manufacturer:
ATMEL
Quantity:
1 000
Company:
Part Number:
ATmega168A-PU
Manufacturer:
ATMEL
Quantity:
4 800
8271D–AVR–05/11
• Bit 5 – ADATE: ADC Auto Trigger Enable
When this bit is written to one, Auto Triggering of the ADC is enabled. The ADC will start a con-
version on a positive edge of the selected trigger signal. The trigger source is selected by setting
the ADC Trigger Select bits, ADTS in ADCSRB.
• Bit 4 – ADIF: ADC Interrupt Flag
This bit is set when an ADC conversion completes and the Data Registers are updated. The
ADC Conversion Complete Interrupt is executed if the ADIE bit and the I-bit in SREG are set.
ADIF is cleared by hardware when executing the corresponding interrupt handling vector. Alter-
natively, ADIF is cleared by writing a logical one to the flag. Beware that if doing a Read-Modify-
Write on ADCSRA, a pending interrupt can be disabled. This also applies if the SBI and CBI
instructions are used.
• Bit 3 – ADIE: ADC Interrupt Enable
When this bit is written to one and the I-bit in SREG is set, the ADC Conversion Complete Inter-
rupt is activated.
• Bits 2:0 – ADPS[2:0]: ADC Prescaler Select Bits
These bits determine the division factor between the system clock frequency and the input clock
to the ADC.
Table 24-5.
ADPS2
0
0
0
0
1
1
1
1
ADC Prescaler Selections
ADPS1
ATmega48A/PA/88A/PA/168A/PA/328/P
0
0
1
1
0
0
1
1
ADPS0
0
1
0
1
0
1
0
1
Division Factor
128
16
32
64
2
2
4
8
266

Related parts for ATmega168A