Microchip Technology, Inc. RF Transmitters ATA8742C-PXQW

The ATA8742C-PXQW is a UHF ASK/FSK transmitter integrated with an AVR microcontroller, designed for low-cost data transmission systems. It operates within the frequency range of 429MHz to 439MHz and supports data rates up to 32kBit/s. The device is housed in a compact QFN24 package measuring 5mm x 5mm and is suitable for various applications, including remote keyless entry systems, alarms, telemetering, and home automation. This transmitter features a supply voltage range of 2.0V to 4.0V, making it compatible with single lithium-cell power supplies. It exhibits low power consumption, with a typical active mode current of 9.8mA at 3.0V and a power-down mode current of 200nA. The output power is rated at 7.5dBm at 433.92MHz, and it includes an integrated PLL loop filter for improved performance. The ATA8742C-PXQW also offers robust ESD protection, with ratings of HBM 2500V, MM 100V, and CDM 1000V. It includes a variety of peripheral features such as two timer/counter units, a 10-bit ADC, and a programmable watchdog timer. The microcontroller has 4KBytes of flash memory, 256Bytes of EEPROM, and 256Bytes of SRAM, along with a programming lock for data security. This combination of features makes the ATA8742C-PXQW a versatile choice for engineers looking for a reliable RF transmitter solution.