ATMEGA16A-AUR Atmel, ATMEGA16A-AUR Datasheet - Page 296

• Manufacturer Part Number: ATMEGA16A-AUR
• Description: MCU AVR 16KB FLASH 16MHZ 44TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA16A-AUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K 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: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

27.5
296
System and Reset Characteristics
ATmega16A
Figure 27-3. External Clock Drive
Note:
Table 27-1.
Notes:
Table 27-2.
Notes:
Symbol
t
t
Δ
CLCH
CHCL
Symbol
t
V
CLCL
V
V
V
t
t
V
BOD
t
I
RST
HYST
POT
RST
BOT
BG
BG
BG
1. Refer to
1. R should be in the range 3 kΩ - 100 kΩ, and C should be at least 20 pF.
2. The frequency will vary with package type and board layout.
1. The Power-on Reset will not work unless the supply voltage has been below V
Parameter
Power-on Reset Threshold
Voltage (rising)
Power-on Reset Threshold
Voltage (falling)
Voltage
Minimum pulse width on
RESET Pin
Brown-out Reset Threshold
Voltage
Minimum low voltage period
for Brown-out Detection
Brown-out Detector
hysteresis
Bandgap reference voltage
Bandgap reference start-up
time
Bandgap reference current
consumption
RESET Pin Threshold
Parameter
Rise Time
Fall Time
Change in period from
one clock cycle to the
next
R [kΩ]
External RC Oscillator, Typical Frequencies (V
Reset, Brown-out and Internal Voltage ReferenceCharacteristics
33
10
“External Clock” on page 30
(2)
(1)
(1)
(1)
(Continued)
V
Min
CC
BODLEVEL = 1
BODLEVEL = 0
BODLEVEL = 1
BODLEVEL = 0
Condition
for details.
= 2.7V to
C [pF]
22
22
Max
5.5
1.6
1.6
2
V
0.1 V
CC
1.15
Min
2.5
3.6
= 5)
CC
V
Min
CC
= 4.5V to
1.23
Typ
1.4
1.3
2.7
4.0
50
40
10
2
2
Max
5.5
650 kHz
2.0 MHz
0.9V
0.5
0.5
2
Max
2.3
2.3
1.5
3.2
4.5
1.4
70
f
POT
V
(2)
8154B–AVR–07/09
CC
(falling).
Units
Units
μs
μs
mV
%
µA
µs
µs
µs
µs
V
V
V
V
V