ATmega1284RZAP Atmel Corporation, ATmega1284RZAP Datasheet - Page 330
ATmega1284RZAP
Manufacturer Part Number
ATmega1284RZAP
Description
Manufacturer
Atmel Corporation
Specifications of ATmega1284RZAP
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
No
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)
0.25
Antenna Diversity
No
External Pa Control
No
Power Output (dbm)
3
Receiver Sensitivity (dbm)
-101
Receive Current Consumption (ma)
16.0
Transmit Current Consumption (ma)
17.0
Link Budget (dbm)
104
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Table 26-7.
Notes:
8059D–AVR–11/09
Symbol
t
t
t
t
t
t
HIGH
SU;STA
HD;DAT
SU;DAT
SU;STO
BUF
1. In ATmega1284P, this parameter is characterized and not 100% tested.
2. Required only for f
3. Cb = capacitance of one bus line in pF.
4. fCK = CPU clock frequency
5. This requirement applies to all ATmega1284P Two-wire Serial Interface operation. Other devices connected to the Two-wire
6. The actual low period generated by the ATmega1284P Two-wire Serial Interface is (1/f
7. The actual low period generated by the Two-wire Serial Interface is (1/f
Serial Bus need only obey the general f
than 6 MHz for the low time requirement to be strictly met at f
strictly met for f
speed (400 kHz) with other ATmega1284P devices, as well as any other device with a proper t
Parameter
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
2-wire Serial Bus Requirements (Continued)
SCL
Figure 26-5. 2-wire Serial Bus Timing
SCL
> 308 kHz when f
> 100 kHz.
SCL
SDA
t
SU;STA
CK
= 8 MHz. Still, ATmega1284P devices connected to the bus may communicate at full
SCL
requirement.
t
HD;STA
t
t
of
LOW
f
f
f
f
f
f
f
f
f
f
f
f
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
Condition
t
HIGH
≤ 100 kHz
> 100 kHz
≤ 100 kHz
> 100 kHz
≤ 100 kHz
> 100 kHz
≤ 100 kHz
> 100 kHz
≤ 100 kHz
> 100 kHz
≤ 100 kHz
> 100 kHz
SCL
t
HD;DAT
= 100 kHz.
SCL
t
LOW
- 2/f
CK
t
SU;DAT
), thus the low time requirement will not be
SCL
250
100
Min
4.0
0.6
4.7
0.6
4.0
0.6
4.7
1.3
0
0
- 2/f
ATmega1284P
CK
LOW
), thus f
acceptance margin.
t
SU;STO
CK
t
r
3.45
Max
0.9
–
–
–
–
–
–
–
–
–
–
must be greater
t
BUF
Units
µs
µs
µs
µs
µs
µs
ns
ns
µs
µs
µs
µs
330
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