ATmega645P Atmel Corporation, ATmega645P Datasheet - Page 671
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ATmega645P
Manufacturer Part Number
ATmega645P
Description
Manufacturer
Atmel Corporation
Specifications of ATmega645P
Flash (kbytes)
64 Kbytes
Pin Count
64
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
54
Ext Interrupts
17
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
No
Crypto Engine
No
Sram (kbytes)
4
Eeprom (bytes)
2048
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
4
Input Capture Channels
1
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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35. Datasheet Revision History
35.1
35.2
35.3
35.4
8285D–AVR–06/11
8285D – 06/11
8285C – 06/11
8285B – 03/11
8285A – 09/10
ATmega165A/PA/325A/PA/3250A/PA/645A/P/6450A/P
Please note that the referring page numbers in this section are referring to this document. The
referring revisions in this section are referring to the document revision.
1.
1.
2.
1.
2.
3.
4.
1.
2.
Removed “Preliminary” from the front page.
Updated
bytes.
Updated
Updated the datasheet according to the Atmel new Brand Style Guide
Updated
Updated the power supply voltage (1.5 - 5.5V) for all devices in
656.
Added
Initial revision (Based on the ATmega165P/325P/3250P/645/6450/V).
Changes done compared to ATmega165P/325P/3250P/645/6450/V datasheet:
– New EIMSK and EIFR register overview
– New graphics in
– Ordering Information includes Tape & Reel
– New
– QTouch Library Support Features
“Ordering Information”
”Signature Bytes” on page
”DC Characteristics” on page 317
“Signature Bytes”
”Ordering Information” on page
”Typical Characteristics” on page
,
Table 27.3 on page
for Extended Temperature (-40°C to 105°C)
286. A, P and PA devices have different signature (0x002)
for all devices.
656.
286.
332.
”Ordering Information” on page
671
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