ATMEGA324A-MU Atmel, ATMEGA324A-MU Datasheet - Page 237
![IC MCU AVR 32K 20MHZ 44VQFN](/photos/12/13/121316/313-44-qfn_sml.jpg)
ATMEGA324A-MU
Manufacturer Part Number
ATMEGA324A-MU
Description
IC MCU AVR 32K 20MHZ 44VQFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA324A-MU
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-VQFN Exposed Pad
Processor Series
ATmega
Core
AVR
Data Bus Width
8 bit
Data Ram Size
2 KB
Interface Type
JTAG, TWI, SPI, USART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
32
Number Of Timers
3
Operating Supply Voltage
3.3 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Operating Temperature Range
- 40 C to + 85 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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164A/164PA/324A/324PA/644A/644PA/1284/1284P
Figure 20-22. TWI Address Match Logic, Block Diagram
TWAR0
Address
Match
Address
Bit 0
TWAMR0
Address Bit Comparator 0
Address Bit Comparator 6..1
• Bit 0 – Res: Reserved Bit
This bit is reserved and will always read as zero.
237
8272A–AVR–01/10
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