ATMEGA324P-20AQ Atmel, ATMEGA324P-20AQ Datasheet - Page 330
ATMEGA324P-20AQ
Manufacturer Part Number
ATMEGA324P-20AQ
Description
MCU AVR 32KB FLASH 20MHZ 44TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA324P-20AQ
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)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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25.3
Table 25-4.
Notes:
25.3.1
25.3.2
Table 25-5.
8011O–AVR–07/10
Factory
Calibration
User
Calibration
Symbol
1/t
t
t
t
t
t
Δ
CLCL
CHCX
CLCX
CLCH
CHCL
t
CLCL
CLCL
Clock Characteristics
1. Voltage range for ATmega164PV/324PV/644PV.
2. Voltage range for ATmega164P/324P/644P.
External Clock Drive Waveforms
External Clock Drive
Calibration Accuracy of Internal RC Oscillator
External Clock Drive
Parameter
Oscillator Frequency
Clock Period
High Time
Low Time
Rise Time
Fall Time
Change in period from
one clock cycle to the
next
Figure 25-3. External Clock Drive Waveforms
7.3 MHz - 8.1 MHz
Frequency
8.0 MHz
V
V
Min.
IL1
250
100
100
CC
0
V
IH1
= 1.8V - 5.5V
1.8V - 5.5V
2.7V - 5.5V
Max.
2.0
2.0
4
2
V
3V
CC
(1)
(2)
Min.
V
100
40
40
0
CC
= 2.7V - 5.5V
ATmega164P/324P/644P
Max.
Temperature
-40°C - 85°C
1.6
1.6
10
2
25°C
V
Min.
50
20
20
CC
0
= 4.5V - 5.5V
Calibration Accuracy
Max.
0.5
0.5
20
2
±10%
±1%
Units
MHz
ns
μs
%
330
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