MC145030

The MC145030 is a kind of remote control encoder/decoder. MC145030 encodes and decodes nine bits of information, which allows 512 different codes. The encoder section samples the 9-bit parallel address input, encodes the bits into Manchester Code, and sends the serial information via the ENCout pin. The decoder accepts serial information at the DECin pin, and decodes the Manchester information.

There are some features of MC145030 as follows: (1)applications: cordless phones and half-duplex remote control; (2)interfaces with RF, ultrasonic, or infrared modulators and demodulators; (3)operating temperature range: -40 to 85 ; (4)operating voltage range: 2 to 6 V; (5)standby supply current: 20A maximum @ 2 V; (6)operating supply current: 700A maximum @ 2.5 V; (7)address inputs have on-chip pull-up devices; (8)RC oscillator, no crystal required; (9)on-chip amplifier in decode section; (10)power-on reset forces DECout low and initializes the decoder and encoder sections.

The following is about the maximum ratings of MC145030 (voltage referenced to VSS): (1)VDD, DC supply voltage: -0.5 to 7.0 V; (2)Vin, DC input voltage: -0.5 to VDD+0.5 V; (3)Vout, DC output voltage: -0.5 to VDD+0.5 V; (4)Iin, DC input current per pin: ±10 mA; (5)Iout, DC output current per pin: ±10 mA; (6)IDD, DC supply current, VDD and VSS pins: ±30 mA; (7)PD, power dissipation per package: 500 mW; (8)Tstg, storage temperature: -65 to 150; (9)TL, lead temperature (10 second soldering): 260.