ATMEGA324A-MU Atmel, ATMEGA324A-MU Datasheet - Page 387

• 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

28.2.11
8272A–AVR–01/10
Internal Oscillator Speed
Figure 28-84. ATmega164PA: Bandgap Voltage vs. Temperature
Figure 28-85. ATmega164PA: Watchdog Oscillator Frequency vs. Temperature
164A/164PA/324A/324PA/644A/644PA/1284/1284P
1.087
1.085
1.083
1.081
1.079
1.077
1.075
1.073
1.071
1.069
1.067
134
132
130
128
126
124
122
120
-40
-50
-40
-30
-30
-20
-20
-10
-10
0
0
10
Temperature (°C)
Temperature (°C)
10
20
20
30
30
40
40
50
50
60
60
70
70
80
80
90
90
1.8V
3.6V
2.7V
4.5V
5.5V
2.1 V
2.7 V
3.3 V
4.0 V
5.5 V
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