ATmega328P Automotive Atmel Corporation, ATmega328P Automotive Datasheet - Page 311
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ATmega328P Automotive
Manufacturer Part Number
ATmega328P Automotive
Description
Manufacturer
Atmel Corporation
Specifications of ATmega328P Automotive
Flash (kbytes)
32 Kbytes
Pin Count
32
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
23
Ext Interrupts
24
Usb Speed
No
Usb Interface
No
Spi
2
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
Yes
Crypto Engine
No
Sram (kbytes)
2
Eeprom (bytes)
1024
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
Yes
Temp. Range (deg C)
-40 to 125
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
6
Input Capture Channels
1
Pwm Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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28.8
Table 28-7
Interface meets or exceeds these requirements under the noted conditions.
Timing symbols refer to
Table 28-7.
Notes:
7810A–AVR–11/09
Symbol
V
V
V
V
t
t
t
I
C
f
Rp
t
t
t
t
t
t
t
t
r
of
SP
i
SCL
HD;STA
LOW
HIGH
SU;STA
HD;DAT
SU;DAT
SU;STO
BUF
(1)
IL
IH
hys
OL
i
(1)
(1)
(1)
(1)
(1)
1. In ATmega328P, this parameter is characterized and not 100% tested.
2. Required only for f
3. C
4. f
5. This requirement applies to all ATmega328P 2-wire Serial Interface operation. Other devices connected to the 2-wire Serial
2-wire Serial Interface Characteristics
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
Data hold time
Data setup time
Setup time for STOP condition
Bus free time between a STOP and START
condition
Bus need only obey the general f
describes the requirements for devices connected to the 2-wire Serial Bus. The ATmega328P 2-wire Serial
CK
b
= capacitance of one bus line in pF.
= CPU clock frequency
2-wire Serial Bus Requirements
Figure
SCL
28-5.
> 100 kHz.
IHmin
to V
ILmax
SCL
requirement.
f
CK
(4)
10 pF < C
0.1V
> max(16f
3 mA sink current
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
CC
Condition
< V
> 100 kHz
> 100 kHz
> 100 kHz
> 100 kHz
> 100 kHz
> 100 kHz
> 100 kHz
> 100 kHz
> 100 kHz
100 kHz
100 kHz
100 kHz
100 kHz
100 kHz
100 kHz
100 kHz
100 kHz
100 kHz
b
< 400 pF
SCL
i
< 0.9V
ATmega328P [Preliminary]
, 250kHz)
CC
(3)
(5)
20 + 0.1C
20 + 0.1C
V
----------------------------
V
----------------------------
0.05 V
CC
CC
0.7 V
3mA
3mA
-0.5
250
100
Min
-10
4.0
0.6
4.7
1.3
4.0
0.6
4.7
0.6
4.0
0.6
4.7
1.3
–
–
0
0
–
0
0
0
0,4V
0,4V
CC
CC
b
b
(2)
(3)(2)
(3)(2)
V
0.3 V
1000ns
------------------ -
CC
300ns
--------------- -
50
3.45
Max
300
250
400
0.4
0.9
C
10
10
C
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
+ 0.5
b
(2)
b
CC
Units
kHz
µA
pF
ns
ns
ns
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
ns
ns
µs
µs
µs
µs
V
V
V
V
311
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