ATmega1284P Atmel Corporation, ATmega1284P Datasheet - Page 574
ATmega1284P
Manufacturer Part Number
ATmega1284P
Description
Manufacturer
Atmel Corporation
Specifications of ATmega1284P
Flash (kbytes)
128 Kbytes
Pin Count
44
Max. Operating Frequency
20 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
32
Ext Interrupts
32
Usb Speed
No
Usb Interface
No
Spi
3
Twi (i2c)
1
Uart
2
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)
16
Eeprom (bytes)
4096
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
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35. Datasheet Revision History
35.1
35.2
8272C–AVR–06/11
Rev. 8272C - 06/11
Rev. 8272B - 05/11
Please note that the referring page numbers in this section are referred to this document. The
referring revision in this section are referring to the document revision.
1.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
Updated
Added Atmel QTouch Library Support and QTouch Sensing Capablity Features.
Replaced the
Replaced the
includes Timer/Counter3.
Added
Added
Renamed PRR to
Updated
the PCIF3, PCIF2, PCIF1 and PCIF0 bit description.
Updated
description.
Updated
Updated
Added
Added
Added
Added
Updated All
ATmega1284P.
Updated
register.
Updated
BODS and BODSE bits denoted as R/W
Description of external pin modes below table 16-9 removed.
Updated
Updated the datasheet with Atmel new style guide.
ATmega164A/PA/324A/PA/644A/PA/1284/P
”RAMPZ – Extended Z-pointer Register for ELPM/SPM(1)” on page
”PRR1 – Power Reduction Register 1” on page
”TCNT3H and TCNT3L –Timer/Counter3” on page 136
”OCR3AH and OCR3AL – Output Compare Register3 A” on page 137
”OCR3BH and OCR3BL – Output Compare Register3 B” on page 137
”TIMSK3 – Timer/Counter3 Interrupt Mask Register” on page 139
”ATmega1284P DC Characteristics” on page
”PCIFR – Pin Change Interrupt Flag Register” on page
”PCMSK3 – Pin Change Mask Register 3” on page
”Alternate Functions of Port B” on page 82
”Alternate Functions of Port D” on page 88
”Addressing the Flash During Self-Programming” on page 284
Table 27-16 on page
”Register Summary” on page 553
“SPI – Serial Peripheral Interface” “Register Description”
Figure 7-1 on page 10
Figure 1-1 on page 2
”PRR0 – Power Reduction Register 0” on page
314. t
by an updated
by an updated
WD_EEPROM
to include Timer/Counter3.
is 3.6ms instead of 9ms.
“Pinout”
“Block Diagram of the AVR Architecture”
to include Timer/Counter3
to include Timer/Counter3
334.
49.
that includes Timer/Counter3.
70. PCIE3 replaces PCIE2 in the bit
69. PCICR replaces EIMSR in
48.
to reflect ATmega1284 and
to include RAMPZ
15.
that
574
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