ATMEGA645P-MU Part Information

Details for ATMEGA645P-MU by Microchip Technology

ATmega645P

Part Description

The high-performance Microchip picoPower 8-bit AVR RISC-based microcontroller combines 64KB ISP flash memory with read-while-write capabilities, 2KB EEPROM, 4KB SRAM, 54/69 general purpose I/O lines, 32 general purpose working registers, a JTAG interface for boundary-scan and on-chip debugging/programming, three flexible timer/counters with compare modes, internal and external interrupts,serial programmable USART, a universal serial interface (USI) with start condition detector, an 8-channel 10-bit A/D converter, programmable watchdog timer with internal oscillator, SPI serial port, and five software selectable power saving modes. The device operates between 1.8-5.5 volts. By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching 1 MIPS per MHz, balancing power consumption and processing speed.

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Part Specifications

Family ATmegaAVR
Part Family ATmega165
Part Prefix ATmega
Architecture 8
Core 8-bit AVR
MaxSpeed (MHz) 16
CPU Type 8-bit AVR
CPU Speed (MIPS/DMIPS) 16
Program Memory Type Flash
SelfWrite Yes
Program Memory Size (KB) 64
Program Memory Size (KWords) 32
Multiple Flash Panels True
Secure Bootloader (CodeGuard™ Security) None
RAM (KB) 4096
Data EEPROM (bytes) 2048
Temp. Range Min. -40
Temp. Range Max. 85
Operation Voltage Min.(V) 1.8
Operation Voltage Max.(V) 5.5
Max I/O Pins 54
Pin Count 64
Brown Out Reset (BOR) Programmable BOR
Power On Reset (POR) Yes
Internal Voltage Reference (Bandgap) Yes
Internal Oscillator Yes
Low Power Yes
Number of Comparators 1
ADC Channels 8
Diff ADC Inputs 14
Max ADC Sampling Rate (ksps) 15
Max ADC Resolution (bits) 10
Max ADC Sample/Hold (S/H) 1
Standard UART 1
SPI™ 2
I2C 1
Max 8 Bit Digital Timers 2
Max 16 Bit Digital Timers 1
Hardware RTCC Yes
Watch Dog Timers (WDT) Yes
Timers 3
Stand alone PWM 4
Capture/Compare/PWM (CCP) 1
Standalone Output Compare/ Standard PWM 4
Input Capture 1
Max # PWM outputs (including complementary outputs) 4
Output Compare Channels 4
USB Interface None
Type of CAN module None
Ethernet None
Integrated Wireless Frequency None
Wireless Technology None
JTAG Debug/Program/Boundary Scan
Debug Interface JTAG
Temperature Range -40C to +85C

Alternative Part Descriptions

  • MICROCONTROLLER MCU, 8 BIT, ATMEGA, 16MHZ, QFN-64; Product Range:ATMega Microcontrollers; CPU Speed:16MHz; Program Memory Size:64KB; RAM Memory Size:4KB; No. of Pins:64Pins; MCU Case Style:QFN; No. of I/O s:54I/O s; MSL:- RoHS Compliant: Yes | Newark Electronics
  • MCU 8-bit ATmega AVR RISC 64KB Flash 2.5V/3.3V/5V 64-Pin QFN EP | Avnet America
  • MCU 8-bit ATmega AVR RISC 64KB Flash 2.5V/3.3V/5V 64-Pin QFN EP | Avnet Europe

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