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ATA5771 Datasheet, PDF (1/284 Pages) ATMEL Corporation – Microcontroller with UHF ASK/FSK Transmitter | |||
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General Features
⢠Complete Key Fob IC Consisting of an AVR® Microcontroller and RF Transmitter PLL in
a Single QFN24 5 mm x 5 mm Package (Pitch 0.65 mm)
â f0 = 310 MHz to 350 MHz (ATA5773)
â f0 = 429 MHz to 439 MHz (ATA5774)
â f0 = 868 MHz to 928 MHz (ATA5771)
⢠Automotive Qualified
⢠Temperature Range â40° 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
â Active Mode: Typical 9.6 mA at 3.0V and 1 MHz Microcontroller-clock
â 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
â 4KByte of In-system Programmable Program Memory Flash
â 256 Bytes In-system Programmable EEPROM
â 256 Bytes Internal SRAM
⢠Peripheral Features
â Two Timer/Counter, 8- and 16-bit Counters with Two PWM Channels on Both
â 10-bit ADC
â Programmable Watchdog Timer with Separate On-chip Oscillator
â Universal Serial Interface (USI)
⢠Special Microcontroller Features
â debugWIRE On-chip Debug System
â In-system Programmable via SPI Port
â External and Internal Interrupt Sources
â Pin Change Interrupt on 12 Pins
â Enhanced Power-on Reset Circuit
â Programmable Brown-out Detection Circuit
â Internal Calibrated Oscillator
â 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 x 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.
9137AâRKEâ10/08
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