ATA8742 ATMEL Corporation, ATA8742 Datasheet

ATA8742

Manufacturer Part Number

ATA8742

Description

Manufacturer

ATMEL Corporation

Datasheet

1.ATA8742.pdf (238 pages)

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Meier Automation Equipment Co., Limited

Part Number:

ATA8742

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ATMEL/爱特梅尔

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General Features

•

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

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 f

ASK or FSK data transmission.

Transmitter with Microcontroller Consisting of an AVR

Transmitter PLL in a Single QFN24 5 mm

Temperature Range –40°C to +85°C

Supply Voltage 2.0V to 4.0V Allowing Usage of Single Li-cell Power Supply

Low Power Consumption

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

Programming Lock for Self-programming Flash Program and EEPROM Data Security

Peripheral Features

Special Microcontroller Features

12 Programmable I/O Lines

– f

– Active Mode: Typical 9.8 mA at 3.0V and 4 MHz Microcontroller-clock

– Power-down Mode: Typical 200 nA at 3.0V

– 4 KBytes of In-system Programmable Program Memory Flash

– 256 Bytes In-system Programmable EEPROM

– 256 Bytes Internal SRAM

– Two Timer/Counter, 8- and 16-bit Counters with Two PWM Channels on Both

– 10-bit ADC

– On-chip Analog Comparator

– Programmable Watchdog Timer with Separate On-chip Oscillator

– Universal Serial Interface (USI)

– 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

= 429 MHz to 439 MHz

5 mm Package (Pitch 0.65 mm)

Microcontroller and RF

= 433 MHz for

5 mm

Microcontroller

with

UHF ASK/FSK

Transmitter

ATA8742

9151A–INDCO–07/09

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