ATmega168P Atmel Corporation, ATmega168P Datasheet - Page 45

no-image

ATmega168P

Manufacturer Part Number
ATmega168P
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of ATmega168P

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
Yes
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:
ATmega168P-20AN
Manufacturer:
Atmel
Quantity:
10 000
Part Number:
ATmega168P-20AN
Manufacturer:
Microchip Technology
Quantity:
488
Part Number:
ATmega168P-20ANR
Manufacturer:
Atmel
Quantity:
10 000
Part Number:
ATmega168P-20ANR
Manufacturer:
Microchip Technology
Quantity:
317
Part Number:
ATmega168P-20AU
Manufacturer:
ATMEL
Quantity:
1 250
Part Number:
ATmega168P-20AU
Manufacturer:
Atmel
Quantity:
10 000
Part Number:
ATmega168P-20AU
Manufacturer:
Microchip Technology
Quantity:
7 422
Part Number:
ATmega168P-20AUR
Manufacturer:
Atmel
Quantity:
10 000
Part Number:
ATmega168P-20AUR
Manufacturer:
Microchip Technology
Quantity:
24 000
Part Number:
ATmega168P-20MQ
Manufacturer:
Microchip Technology
Quantity:
349
Part Number:
ATmega168P-20MU
Manufacturer:
ATMEL
Quantity:
12 000
Part Number:
ATmega168PA-15AZ
Manufacturer:
VAC
Quantity:
120
Part Number:
ATmega168PA-15AZ
Manufacturer:
Atmel
Quantity:
10 000
Part Number:
ATmega168PA-15MZ
Manufacturer:
TOSHIBA
Quantity:
1 000
10.11 Register Description
10.11.1
10.11.2
8025M–AVR–6/11
SMCR – Sleep Mode Control Register
MCUCR – MCU Control Register
The Sleep Mode Control Register contains control bits for power management.
• Bits 7:4 – Reserved
These bits are unused bits in the ATmega48P/88P/168P, and will always read as zero.
• Bits 3:1 – SM[2:0]: Sleep Mode Select Bits 2, 1, and 0
These bits select between the five available sleep modes as shown in
Table 10-2.
Note:
• Bit 0 – SE: Sleep Enable
The SE bit must be written to logic one to make the MCU enter the sleep mode when the SLEEP
instruction is executed. To avoid the MCU entering the sleep mode unless it is the programmer’s
purpose, it is recommended to write the Sleep Enable (SE) bit to one just before the execution of
the SLEEP instruction and to clear it immediately after waking up.
• Bit 6 – BODS: BOD Sleep
The BODS bit must be written to logic one in order to turn off BOD during sleep, see
on page
BODSE in MCUCR. To disable BOD in relevant sleep modes, both BODS and BODSE must first
Bit
0x33 (0x53)
Read/Write
Initial Value
Bit
0x35 (0x55)
Read/Write
Initial Value
SM2
0
0
0
0
1
1
1
1
1. Standby mode is only recommended for use with external crystals or resonators.
40. Writing to the BODS bit is controlled by a timed sequence and an enable bit,
Sleep Mode Select
R
7
0
R
7
0
SM1
0
0
1
1
0
0
1
1
BODS
R/W
6
0
R
6
0
BODSE
R/W
R
5
0
5
0
SM0
0
1
0
1
0
1
0
1
R
PUD
4
0
R/W
0
4
Sleep Mode
Idle
ADC Noise Reduction
Power-down
Power-save
Reserved
Reserved
Standby
External Standby
SM2
R/W
3
0
ATmega48P/88P/168P
(1)
R
3
0
SM1
R/W
2
0
(1)
R
2
0
SM0
R/W
Table
IVSEL
1
0
R/W
1
0
10-2.
R/W
SE
IVCE
R/W
0
0
0
0
Table 10-1
MCUCR
SMCR
45

Related parts for ATmega168P