ATA8742-PXQW Atmel, ATA8742-PXQW Datasheet - Page 14
![MCU W/TRANSMITTER ASK/FSK 24QFN](/photos/7/43/74321/24-qfn-6_543-5122_01-4_sml.jpg)
ATA8742-PXQW
Manufacturer Part Number
ATA8742-PXQW
Description
MCU W/TRANSMITTER ASK/FSK 24QFN
Manufacturer
Atmel
Datasheet
1.ATA8742-PXQW.pdf
(238 pages)
Specifications of ATA8742-PXQW
Frequency
433MHz
Applications
Home Automation, Remote Sensing, RKE
Modulation Or Protocol
ASK, FSK
Data Rate - Maximum
32 kBit/s
Power - Output
7.5dBm
Current - Transmitting
9.8mA
Data Interface
PCB, Surface Mount
Antenna Connector
PCB, Surface Mount
Memory Size
4kB Flash, 256B EEPROM, 256B SRAM
Voltage - Supply
2 V ~ 4 V
Operating Temperature
-40°C ~ 85°C
Package / Case
24-VQFN Exposed Pad, 24-HVQFN, 24-SQFN, 24-DHVQFN
Processor Series
ATA8x
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
8.1 MHz
Number Of Programmable I/os
12
Number Of Timers
2
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Development Tools By Supplier
ATASTK512-EK1-IND
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATA8742-PXQW
Manufacturer:
ATMEL
Quantity:
1 482
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Table 8-1.
14
Component
Q1
C7
C8
R1
R2
R3
R4
ATA8742
9.843750 MHz
Bill of Material (Continued)
100 nF
100 k
100 k
1.8 k
10 pF
10 k
Figure 8-3.
Note:
13.56 MHz
VCC
100 nF
100 k
100 k
1.8 k
12 pF
10 k
Value
FSK Modulation is achieved by switching on and off an additional capacitor between the XTAL
load capacitor and GND. This is done using a MOS switch controlled by a microcontroller output.
C7
R3
Typical FSK Application ATA8742
R2
13.567187 MHz
C6
100 nF
100 k
100 k
1.8 k
12 pF
10 k
1
2
3
4
5
6
VDD
PB0/XTAL1
PB1/XTAL2
PB3/RESET
PB2
PA7
ADC7
R1
24
7
GRM188R71C /
Manufacturer Note
GRM1885C/
DSX530GK/
23
8
Murata
Murata
Type/
KDS
ATA874x
C5
22
9
VCC
21
10
This resistor can be resigned if the ASK
modulation is performed using PA5 (MISO).
20
11
C8
C2
PA5/MISO
Q1
PA4/SCK
L1
PA3/T0
L2
19
12
PA0
PA1
PA2
C9
18
17
16
15
14
13
C1
C3
VCC
T1
SW1
SW2
SW3
9151A–INDCO–07/09
C4
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