ATmega1284RZAP Atmel Corporation, ATmega1284RZAP Datasheet - Page 306
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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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25.8
25.8.1
8059D–AVR–11/09
Serial Downloading
Serial Programming Pin Mapping
Both the Flash and EEPROM memory arrays can be programmed using a serial programming
bus while RESET is pulled to GND. The serial programming interface consists of pins SCK,
MOSI (input) and MISO (output). After RESET is set low, the Programming Enable instruction
needs to be executed first before program/erase operations can be executed. NOTE, in
25-15 on page
SPI pins dedicated for the internal Serial Peripheral Interface - SPI.
Table 25-15. Pin Mapping Serial Programming
Figure 25-10. Serial Programming and Verify
Notes:
When programming the EEPROM, an auto-erase cycle is built into the self-timed programming
operation (in the Serial mode ONLY) and there is no need to first execute the Chip Erase
instruction. The Chip Erase operation turns the content of every memory location in both the
Program and EEPROM arrays into 0xFF.
Depending on CKSEL Fuses, a valid clock must be present. The minimum low and high periods
for the serial clock (SCK) input are defined as follows:
Low: > 2 CPU clock cycles for f
High: > 2 CPU clock cycles for f
Symbol
MOSI
MISO
1. If the device is clocked by the internal Oscillator, it is no need to connect a clock source to the
2. V
SCK
XTAL1 pin.
CC
- 0.3V < AVCC < V
306, the pin mapping for serial programming is listed. Not all packages use the
(PDIP-40)
Pins
PB5
PB6
PB7
MOSI
MISO
SCK
ck
ck
CC
< 12 MHz, 3 CPU clock cycles for f
< 12 MHz, 3 CPU clock cycles for f
+ 0.3V, however, AVCC should always be within 1.8 - 5.5V
XTAL1
RESET
GND
(TQFP-44)
(1)
Pins
PB5
PB6
PB7
AVCC
VCC
+1.8 - 5.5V
+1.8 - 5.5V
I/O
O
I
I
(2)
ATmega1284P
ck
ck
>= 12 MHz
>= 12 MHz
Serial Data out
Serial Data in
Description
Serial Clock
Table
306
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