ATA8742 ATMEL Corporation, ATA8742 Datasheet
ATA8742
Manufacturer Part Number
ATA8742
Description
Manufacturer
ATMEL Corporation
Datasheet
1.ATA8742.pdf
(238 pages)
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Part Number:
ATA8742
Manufacturer:
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General Features
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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
0
= 429 MHz to 439 MHz
5 mm Package (Pitch 0.65 mm)
®
Microcontroller and RF
0
= 433 MHz for
5 mm
Microcontroller
with
UHF ASK/FSK
Transmitter
ATA8742
9151A–INDCO–07/09
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