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ATA5771 데이터시트 PDF




ATMEL Corporation에서 제조한 전자 부품 ATA5771은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 ATA5771 기능
기능 (ATA5771 - ATA5774) Microcontroller
제조업체 ATMEL Corporation
로고 ATMEL Corporation 로고


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ATA5771 데이터시트, 핀배열, 회로
General Features
Complete Key Fob IC Consisting of an AVR® Microcontroller and RF Transmitter PLL in
a Single QFN24 5 mm × 5 mm Package (Pitch 0.65 mm)
– f0 = 310 MHz to 350 MHz (ATA5773)
– f0 = 429 MHz to 439 MHz (ATA5774)
– f0 = 868 MHz to 928 MHz (ATA5771)
Automotive Qualified
Temperature Range –40° C to +85° C
ESD Protection: HBM 2500V, MM 100V, CDM 1000V
Supply voltage 2.0V to 4.0V for Single Li-cell Power Supply
Low Power Consumption
– Active Mode: Typical 9.8 mA at 3.0V and 4 MHz Microcontroller-clock
– Power-down Mode: Typical 200 nA at 3.0V
Modulation Scheme ASK/FSK
Integrated PLL Loop Filter
High Output Power (8 dBm at 315 MHz/7.5 dBm at 433 MHz/ 5.5 dBm at 868 MHz)
High Performance, Low Power AVR 8-bit Microcontroller
Advanced RISC Architecture
Non-volatile Program and Data Memories
– 4 KByte of In-system Programmable Program Memory Flash
– 256 Bytes In-system Programmable EEPROM
– 256 Bytes Internal SRAM
Peripheral Features
– Two Timer/Counter, 8- and 16-bit Counters with Two PWM Channels on Both
– 10-bit ADC
– Programmable Watchdog Timer with Separate On-chip Oscillator
– Universal Serial Interface (USI)
Special Microcontroller Features
– debugWIRE On-chip Debug System
– In-system Programmable via SPI Port
– External and Internal Interrupt Sources
– Pin Change Interrupt on 12 Pins
– Enhanced Power-on Reset Circuit
– Programmable Brown-out Detection Circuit
– Internal Calibrated Oscillator
– On-chip Temperature Sensor
12 Programmable I/O Lines
Microcontroller
with
UHF ASK/FSK
Transmitter
ATA5771
ATA5773
ATA5774
1. General Description
The ATA5771/ATA5773/ATA5774 is a single key fob IC containing the AVR microcon-
troller ATtiny44V and the UHF PLL transmitters T5750/53/54 build-up using a stacked
die technique supplied in a QFN24 5 mm × 5 mm package. These devices have been
specially developed for the demands of RF low-cost data transmission systems with
data rates of up to 32 kBit/s. Its main applications are in the areas of Remote Key-
less-Entry (RKE), Passive Entry Go (PEG), and Remote Start. It can be used in the
frequency range of f0 = 310 MHz to 350 MHz, f0 = 429 MHz to 439 MHz or
f0 = 868 MHz to 928 MHz for ASK or FSK data transmission.
9137B–RKE–02/09
Free Datasheet http://www.datasheet4u.com/




ATA5771 pdf, 반도체, 판매, 대치품
2. Pin Configuration
Figure 2-1. Pinning QFN24 5 mm x 5 mm
VCC
PB0
PB1
PB3/RESET
PB2
PA7
24 23 22 21 20 19
1 18
2 17
3 16
4 15
5 14
6 13
7 8 9 10 11 12
PA0
PA1
PA2
PA3/T0
PA4/USCK
PA5/MISO
Table 2-1.
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Pin Description
Symbol Function
VCC
Microcontroller supply voltage
PB0 Port B is a 4-bit bi-directional I/O port with internal pull-up resistor
PB1 Port B is a 4-bit bi-directional I/O port with internal pull-up resistor
PB3/RESET Port B is a 4-bit bi-directional I/O port with internal pull-up resistor/reset input
PB2 Port B is a 4-bit bi-directional I/O port with internal pull-up resistor
PA7 Port A is a 4-bit bi-directional I/O port with internal pull-up resistor
PA6 / MOSI Port A is a 4-bit bi-directional I/O port with internal pull-up resistor
CLK
Clock output signal for microcontroller. The clock output frequency is set by the crystal to fXTAL/4
PA_ENABLE Switches on power amplifier, used for ASK modulation
ANT2
Emitter of antenna output stage
ANT1
Open collector antenna output
GND
Ground
PA5/MISO Port A is a 4-bit bi-directional I/O port with internal pull-up resistor
PA4/SCK Port A is a 4-bit bi-directional I/O port with internal pull-up resistor
PA3/T0 Port A is a 4-bit bi-directional I/O port with internal pull-up resistor
PA2 Port A is a 4-bit bi-directional I/O port with internal pull-up resistor
PA1 Port A is a 4-bit bi-directional I/O port with internal pull-up resistor
PA0 Port A is a 4-bit bi-directional I/O port with internal pull-up resistor
GND
Microcontroller ground
XTAL
Connection for crystal
VS_RF Transmitter supply voltage
GND_RF Transmitter ground
ENABLE Enable input
GND
Ground
GND
Ground/backplane (exposed die pad)
4 ATA5771/ATA5773/ATA5774
9137B–RKE–02/09
Free Datasheet http://www.datasheet4u.com/

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ATA5771 전자부품, 판매, 대치품
ATA5771/ATA5773/ATA5774
Figure 4-1. Output Power Measurement ATA5771/ATA5773/ATA5774
VS
ANT1
ANT2
ZLopt
C1 = 1 nF
L1
C2
Z = 50Ω
Power
meter
Rin
50Ω
Table 4-2. Output Power Measurement ATA5771/ATA5773/ATA5774
Device
ATA5771
L1
10 nH
ATA5773
47 nH
ATA5774
33 nH
C2
0.5 pF
3.3 pF
2.4 pF
9137B–RKE–02/09
7
Free Datasheet http://www.datasheet4u.com/

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