ATMEGA325-16AU Atmel, ATMEGA325-16AU Datasheet - Page 301

• Manufacturer Part Number: ATMEGA325-16AU
• Description: IC AVR MCU 32K 16MHZ 64TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA325-16AU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 54
• 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: 64-TQFP, 64-VQFP
• Processor Series: ATMEGA32x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 2 KB
• Interface Type: SPI/UART/USI
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 54
• Number Of Timers: 3
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8-ch x 10-bit
• Cpu Family: ATmega
• Device Core: AVR
• Device Core Size: 8b
• Frequency (max): 16MHz
• Total Internal Ram Size: 2KB
• # I/os (max): 54
• Number Of Timers - General Purpose: 3
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 64
• Package Type: TQFP
• Package: 64TQFP
• Family Name: ATmega
• Maximum Speed: 16 MHz
• For Use With: ATSTK600-TQFP64 - STK600 SOCKET/ADAPTER 64-TQFP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1005 - ISP 4PORT FOR ATMEL AVR MCU JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPIATAVRISP2 - PROGRAMMER AVR IN SYSTEM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

27.5
Table 27-4.
Notes:
Table 27-5.
Note:
2570M–AVR–04/11
Symbol
V
V
V
V
POT
t
t
V
t
I
RST
BOD
HYST
PSR
RST
BG
BG
BG
System and Reset Characteristics
1. The Power-on Reset will not work unless the supply voltage has been below V
1. V
(1)
tested down to V
a voltage where correct operation of the microcontroller is no longer guaranteed. The test is performed using
BODLEVEL = 10 for Atmel ATmega325/3250/645/6450 and BODLEVEL = 01 for Atmel ATmega325/3250/645/6450V.
BODLEVEL 2:0 Fuses
BOT
Reset, Brown-out and Internal Voltage Reference Characteristics
BODLEVEL Fuse Coding
Parameter
Power-on Reset Threshold Voltage (rising)
Power-on Reset Threshold Voltage (falling)
Power-on Slope Rate
RESET Pin Threshold Voltage
Minimum pulse width on RESET Pin
Brown-out Detector Hysteresis
Min Pulse Width on Brown-out Reset
Bandgap reference voltage
Bandgap reference start-up time
Bandgap reference current consumption
may be below nominal minimum operating voltage for some devices. For devices where this is the case, the device is
11
10
01
00
CC
= V
BOT
during the production test. This guarantees that a Brown-Out Reset will occur before V
(1)
Min V
(1)
1.7
2.5
4.1
BOT
V
V
V
T
T
CC
CC
CC
A
A
= 2.7V, T
= 2.7V, T
= 2.7V, T
= -40°C to 85°C
= -40°C to 85°C
Condition
V
V
CC
CC
= 3V
= 3V
ATmega325/3250/645/6450
Typ V
A
A
A
= 25°C
= 25°C
= 25°C
1.8
2.7
4.3
BOD Disabled
BOT
POT
0.2V
(falling)
0.05
0.01
Min
0.7
1.0
CC
Max V
Typ
800
1.0
0.9
1.1
50
40
15
2.0
2.9
4.5
2
BOT
0.85V
Max
1.4
1.3
4.5
1.2
70
CC
CC
Units
drops to
V
Units
V/ms
mV
µA
ns
µs
µs
V
V
V
V
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