ATA5771-PXQW Atmel, ATA5771-PXQW Datasheet - Page 64

XMITTR UHF ASK/FSK 868MHZ 24VQFN

ATA5771-PXQW

Manufacturer Part Number
ATA5771-PXQW
Description
XMITTR UHF ASK/FSK 868MHZ 24VQFN
Manufacturer
Atmel
Datasheet

Specifications of ATA5771-PXQW

Frequency
868MHz ~ 928MHz
Modulation Or Protocol
UHF
Power - Output
8dBm
Voltage - Supply
2 V ~ 4 V
Current - Transmitting
9.8mA
Data Interface
PCB, Surface Mount
Memory Size
4kB Flash, 256B EEPROM, 256B SRAM
Antenna Connector
PCB, Surface Mount
Operating Temperature
-40°C ~ 85°C
Package / Case
24-VQFN Exposed Pad, 24-HVQFN, 24-SQFN, 24-DHVQFN
Processor Series
ATA5x
Core
AVR8
Data Bus Width
8 bit
Program Memory Type
Flash
Program Memory Size
4 KB
Data Ram Size
256 B
Interface Type
SPI, USI
Maximum Clock Frequency
4 MHz
Number Of Programmable I/os
12
Number Of Timers
2
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 12 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Applications
-
Sensitivity
-
Data Rate - Maximum
-
Current - Receiving
-
Lead Free Status / Rohs Status
 Details

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATA5771-PXQW
Manufacturer:
ATMEL
Quantity:
218
64
Atmel ATA5771/73/74
Figure 4-24. Synchronization when Reading a Software Assigned Pin Value
The following code example shows how to set port A pins 0 and 1 high, 2 and 3 low, and
define the port pins from 4 to 5 as input with a pull-up assigned to port pin 4. The resulting pin
values are read back again, but as previously discussed, a nop instruction is included to be
able to read back the value recently assigned to some of the pins.
Assembly Code Example
C Code Example
INSTRUCTIONS
unsigned char i;
...
; Define pull-ups and set outputs high
; Define directions for port pins
ldi
ldi
out
out
; Insert nop for synchronization
nop
; Read port pins
in
...
...
/* Define pull-ups and set outputs high */
/* Define directions for port pins */
PORTA = (1<<PA4)|(1<<PA1)|(1<<PA0);
DDRA = (1<<DDA3)|(1<<DDA2)|(1<<DDA1)|(1<<DDA0);
/* Insert nop for synchronization*/
_NOP();
/* Read port pins */
i = PINA;
...
SYSTEM CLK
SYNC LATCH
r16,(1<<PA4)|(1<<PA1)|(1<<PA0)
r17,(1<<DDA3)|(1<<DDA2)|(1<<DDA1)|(1<<DDA0)
PORTA,r16
DDRA,r17
r16,PINA
PINxn
r16
r17
(1)
out PORTx, r16
0x00
nop
t
pd
0xFF
in r17, PINx
9137E–RKE–12/10
0xFF

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