ATMEGA328-MUR Atmel, ATMEGA328-MUR Datasheet - Page 326

no-image

ATMEGA328-MUR

Manufacturer Part Number
ATMEGA328-MUR
Description
IC MCU AVR 32K FLASH 32QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheets

Specifications of ATMEGA328-MUR

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
23
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)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
28.7
T a b l e 2 8 - 1 5
ATmega48A/48PA/88A/88PA/168A/168PA/328/328P 2-wire Serial Interface meets or exceeds these requirements under
the noted conditions.
Timing symbols refer to
Table 28-15. Two-wire Serial Bus Requirements
Notes:
8271C–AVR–08/10
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)
Two-wire Serial Interface Characteristics
1. In ATmega48A/48PA/88A/88PA/168A/168PA/328/328P, this parameter is characterized and not 100% tested.
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
d e s c r i b e s t h e r e q u i r e m e n t s f o r d e v i c e s c o n n e c t e d t o t h e 2 - w i r e S e r i a l B u s . T h e
Figure
ATmega48A/48PA/88A/88PA/168A/168PA/328/328
28-5.
IHmin
to V
ILmax
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
, 250kHz)
CC
(3)
(5)
20 + 0.1C
20 + 0.1C
0.05 V
V
--------------------------- -
V
--------------------------- -
CC
CC
0.7 V
3mA
3mA
Min.
-0.5
250
100
-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
Ω
Ω
V
V
V
V
326

Related parts for ATMEGA328-MUR