ATmega1284PR231 Atmel Corporation, ATmega1284PR231 Datasheet - Page 329
ATmega1284PR231
Manufacturer Part Number
ATmega1284PR231
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT86RF231.pdf
(198 pages)
2.ATMEGA1284PR231.pdf
(380 pages)
3.ATMEGA1284PR231.pdf
(20 pages)
Specifications of ATmega1284PR231
Flash (kbytes)
128 Kbytes
Max. Operating Frequency
20 MHz
Max I/o Pins
32
Spi
3
Twi (i2c)
1
Uart
2
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Crypto Engine
AES
Sram (kbytes)
16
Eeprom (bytes)
4096
Operating Voltage (vcc)
1.8 to 3.6
Timers
3
Frequency Band
2.4 GHz
Max Data Rate (mb/s)
2
Antenna Diversity
Yes
External Pa Control
Yes
Power Output (dbm)
3
Receiver Sensitivity (dbm)
-101
Receive Current Consumption (ma)
13.2
Transmit Current Consumption (ma)
14.4
Link Budget (dbm)
104
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26.7
Table 26-7
Interface meets or exceeds these requirements under the noted conditions.
Timing symbols refer to
Table 26-7.
8059D–AVR–11/09
Symbol
V
V
V
V
t
t
t
I
C
f
Rp
t
t
r
of
SP
i
SCL
HD;STA
LOW
(1)
IL
IH
hys
OL
i
(1)
(1)
(1)
(1)
(1)
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
describes the requirements for devices connected to the 2-wire Serial Bus. The ATmega1284P 2-wire Serial
2-wire Serial Bus Requirements
Figure
Figure 26-4. SPI Interface Timing Requirements (Slave Mode)
26-5.
(Data Output)
IHmin
(Data Input)
(CPOL = 0)
(CPOL = 1)
to V
MOSI
MISO
SCK
SCK
SS
ILmax
9
13
f
MSB
CK
MSB
(4)
14
10 pF < C
0.1V
> max(16f
3 mA sink current
f
f
SCL
SCL
f
f
f
f
SCL
SCL
SCL
SCL
CC
15
Condition
≤ 100 kHz
> 100 kHz
< V
≤ 100 kHz
> 100 kHz
≤ 100 kHz
> 100 kHz
b
< 400 pF
SCL
i
< 0.9V
, 250kHz)
(6)
(7)
CC
...
...
(3)
(5)
20 + 0.1C
20 + 0.1C
V
----------------------------
V
----------------------------
0.05 V
CC
CC
0.7 V
3mA
3mA
11
-0.5
Min
-10
4.0
0.6
4.7
1.3
–
–
0
0
–
0
0,4V
0,4V
CC
CC
b
b
(2)
(2)(3)
(2)(3)
ATmega1284P
10
LSB
LSB
11
V
12
0.3 V
1000ns
------------------ -
CC
300ns
--------------- -
50
Max
300
250
400
0.4
C
10
10
C
–
16
–
–
–
–
+ 0.5
b
(2)
b
CC
X
17
Units
kHz
µA
pF
ns
ns
ns
µs
µs
µs
µs
Ω
Ω
V
V
V
V
329
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