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ATA8742 Datasheet, PDF (1/238 Pages) ATMEL Corporation – Microcontroller with UHF ASK/FSK Transmitter | |||
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General Features
⢠Transmitter with Microcontroller Consisting of an AVR® Microcontroller and RF
Transmitter PLL in a Single QFN24 5 mm à 5 mm Package (Pitch 0.65 mm)
â f0 = 429 MHz to 439 MHz
⢠Temperature Range â40°C to +85°C
⢠Supply Voltage 2.0V to 4.0V Allowing Usage of Single Li-cell Power Supply
⢠Low Power Consumption
â Active Mode: Typical 9.8 mA at 3.0V and 4 MHz Microcontroller-clock
â Power-down Mode: Typical 200 nA at 3.0V
⢠Modulation Scheme ASK/FSK
⢠Integrated PLL Loop Filter
⢠Output Power of 7.5 dBm at 433.92 MHz
⢠Easy to Design-in Due to Excellent Isolation of the PLL from the PA and Power Supply
⢠Single-ended Antenna Output with High Efficient Power Amplifier
⢠Very Robust ESD Protection: HBM 2500V, MM100V, CDM 1000V
⢠High Performance, Low Power AVR 8-bit Microcontroller, Similar to Popular ATtiny44
⢠Well Known and Market-accepted RISC Architecture
⢠Non-volatile Program and Data Memories
â 4 KBytes of In-system Programmable Program Memory Flash
â 256 Bytes In-system Programmable EEPROM
â 256 Bytes Internal SRAM
⢠Programming Lock for Self-programming Flash Program and EEPROM Data Security
⢠Peripheral Features
â Two Timer/Counter, 8- and 16-bit Counters with Two PWM Channels on Both
â 10-bit ADC
â On-chip Analog Comparator
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
ATA8742
1. General Description
The ATA8742 is a highly flexible programmable transmitter containing the AVR micro-
controller ATtiny44V and the UHF PLL transmitters a small QFN24 5 mm à 5 mm
package. This device is a member of a transmitter family covering several operating
frequency ranges, which has been specifically developed for the demands of RF
low-cost data transmission systems with data rates of up to 32 kBit/s. Its primary appli-
cations are in the areas of industrial/aftermarket Remote Keyless-Entry (RKE)
systems, alarm, telemetering, energy metering systems, home automotion/entertain-
ment and toys. The ATA8742 can be used in the frequency band of f0 = 433 MHz for
ASK or FSK data transmission.
9151AâINDCOâ07/09
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