ATmega16A Atmel Corporation, ATmega16A Datasheet - Page 297

• Manufacturer Part Number: ATmega16A
• Manufacturer: Atmel Corporation

Specifications of ATmega16A

• Flash (kbytes): 16 Kbytes
• Pin Count: 44
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 32
• Ext Interrupts: 3
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 1
• Eeprom (bytes): 512
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 4
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

27.6
27.7
Table 27-4
Interface meets or exceeds these requirements under the noted conditions.
Timing symbols refer to
Table 27-4.
8154B–AVR–07/09
Symbol
V
V
V
V
t
t
t
I
C
f
Rp
t
t
t
t
r
of
SP
i
SCL
HD;STA
LOW
HIGH
SU;STA
(1)
IL
IH
hys
OL
i
(1)
(1)
(1)
(1)
(1)
External Interrupts Characteristics
Two-wire Serial Interface Characteristics
describes the requirements for devices connected to the Two-wire Serial Bus. The ATmega16A Two-wire Serial
Parameter
Input Low-voltage
Input High-voltage
Hysteresis of Schmitt Trigger Inputs
Output Low-voltage
Rise Time for both SDA and SCL
Output Fall Time from V
Spikes Suppressed by Input Filter
Input Current each I/O Pin
Capacitance for each I/O Pin
SCL Clock Frequency
Value of Pull-up resistor
Hold Time (repeated) START Condition
Low Period of the SCL Clock
High period of the SCL clock
Set-up time for a repeated START condition
Two-wire Serial Bus Requirements
Figure
Table 27-3.
Symbol
t
INT
27-4.
IHmin
2. V
to V
this is the case, the device is tested down to V
antees that a Brown-out Reset will occur before V
operation of the microcontroller is no longer guaranteed. The test is performed using
BODLEVEL = 1 and BODLEVEL = 0 for ATmega16A.
Parameter
Minimum pulse width for asynchronous
external interrupt
BOT
ILmax
Asynchronous External Interrupt Characteristics
may be below nominal minimum operating voltage for some devices. For devices where
f
CK
(4)
10 pF < C
0.1V
> max(16f
3 mA sink current
f
f
SCL
SCL
f
f
f
f
f
f
f
f
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
CC
Condition
≤ 100 kHz
> 100 kHz
< V
≤ 100 kHz
> 100 kHz
≤ 100 kHz
> 100 kHz
≤ 100 kHz
> 100 kHz
≤ 100 kHz
> 100 kHz
b
< 400 pF
SCL
i
< 0.9V
, 250kHz)
(6)
(7)
CC
(3)
Condition
CC
(5)
= V
CC
20 + 0.1C
20 + 0.1C
drops to a voltage where correct
BOT
V
----------------------------
V
----------------------------
0.05 V
CC
CC
0.7 V
during the production test. This guar-
3mA
3mA
Min
-0.5
-10
4.0
0.6
4.7
1.3
4.0
0.6
4.7
0.6
–
–
0
–
0
0
0,4V
0,4V
CC
CC
Min
b
b
(2)
(3)(2)
(3)(2)
ATmega16A
Typ
50
V
1000ns
------------------ -
0.3 V
CC
300ns
--------------- -
Max
50
300
250
400
0.4
C
10
10
C
–
–
–
–
–
–
–
–
–
+ 0.5
b
(2)
b
Max
CC
Units
Units
kHz
ns
µA
pF
µs
µs
ns
ns
ns
µs
µs
µs
µs
µs
µs
Ω
Ω
V
V
V
V
297