ATMEGA324A-MU Atmel, ATMEGA324A-MU Datasheet - Page 389

• 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

8272A–AVR–01/10
Figure 28-88. ATmega164PA: Calibrated 8 MHz RC Oscillator vs. Temperature
Figure 28-89. ATmega164PA: Calibrated 8 MHz RC Oscillator vs. OSCCAL Value
164A/164PA/324A/324PA/644A/644PA/1284/1284P
8.3
8.2
8.1
7.9
7.8
7.7
16
14
12
10
8
8
6
4
2
0
-50
0
16
-40
32
-30
48
-20
64
-10
80
0
96 112 128 144 160 176 192 208 224 240 256
Temperature (°C)
10
OSCCAL (X1)
20
30
40
50
60
70
80
90
-40 °C
5.0 V
3.0 V
85 °C
25 °C
389