ATA5773-PXQW Atmel, ATA5773-PXQW Datasheet - Page 18

XMITTR UHF ASK/FSK 310MHZ 24VQFN

ATA5773-PXQW

Manufacturer Part Number
ATA5773-PXQW
Description
XMITTR UHF ASK/FSK 310MHZ 24VQFN
Manufacturer
Atmel
Datasheet

Specifications of ATA5773-PXQW

Frequency
310MHz ~ 350MHz
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:
ATA5773-PXQW
Manufacturer:
ATMEL
Quantity:
3 500
Part Number:
ATA5773-PXQW
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
4.7.6
4.7.6.1
18
Atmel ATA5771/73/74
Stack Pointer
SPH and SPL – Stack Pointer High and Low
Figure 4-4.
In the different addressing modes these address registers have functions as fixed displace-
ment, automatic increment, and automatic decrement (see the “Instruction Set Reference” for
details).
The Stack is mainly used for storing temporary data, for storing local variables and for storing
return addresses after interrupts and subroutine calls. The Stack Pointer Register always
points to the top of the Stack. Note that the Stack is implemented as growing from higher
memory locations to lower memory locations. This implies that a Stack PUSH command
decreases the Stack Pointer.
The Stack Pointer points to the data SRAM Stack area where the Subroutine and Interrupt
Stacks are located. This Stack space in the data SRAM must be defined by the program
before any subroutine calls are executed or interrupts are enabled. The Stack Pointer must be
set to point above 0x60. The Stack Pointer is decremented by one when data is pushed onto
the Stack with the PUSH instruction, and it is decremented by two when the return address is
pushed onto the Stack with subroutine call or interrupt. The Stack Pointer is incremented by
one when data is popped from the Stack with the POP instruction, and it is incremented by two
when data is popped from the Stack with return from subroutine RET or return from interrupt
RETI.
The Atmel AVR
number of bits actually used is implementation dependent. Note that the data space in some
implementations of the AVR architecture is so small that only SPL is needed. In this case, the
SPH Register will not be present.
X-register
Y-register
Z-register
Bit
0x3E (0x5E)
0x3D (0x5D)
Read/Write
Initial Value
The X-, Y-, and Z-registers
®
SP15
SP7
R/W
R/W
15
7
0
0
Stack Pointer is implemented as two 8-bit registers in the I/O space. The
15
7
R27 (0x1B)
15
7
R29 (0x1D)
15
7
R31 (0x1F)
SP14
SP6
R/W
R/W
14
6
0
0
SP13
SP5
R/W
R/W
13
5
0
0
XH
YH
ZH
0
SP12
R/W
R/W
SP4
12
4
0
0
SP11
SP3
R/W
R/W
11
3
0
0
0
0
7
R26 (0x1A)
7
R28 (0x1C)
7
R30 (0x1E)
SP10
R/W
SP2
R/W
10
2
0
0
SP9
SP1
R/W
R/W
9
1
0
0
XL
YL
ZL
0
9137E–RKE–12/10
SP8
SP0
R/W
R/W
8
0
0
0
SPH
SPL
0
0
0
0
0

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