TC9319F

The TC9319F is a Obit CMOS microcontroller for single chip digital tuning system with built-in prescaler, PLL and LCD driver.The CPU has Obit parallel addition/subtraction (AI, SI instructions, etc.) logical operation (OR, AN instructions, etc.) multiple bits judgment, comparison instructions (TM,SL instructions, etc.) and time base functions. The TC9319F is housed in an 60 pin mini-flat package and is provided with ample I/O ports and exclusive key input ports which are controlled by powerful I/O instructions (IO,KEY instruction, etc.) and 1/2 duty and 1/2 bias driving ample LCD use exclusive output terminals.

Features of the TC9319F are:(1)4bit microcontroller single chip digital tuning system; (2)5V±10% single power supply, CMOS structure for low power dissipation; (3)built-in prescaler (Max. 140MHz signal is directly input in FM band), PLL and LCD driver (1/2 d uty,1/2 bias, frame frequency:100Hz, 50 segments (Max.)); (4)easy back up of data memory (RAM) and various ports (by the INH terminal); (5)program memory (ROM):16 bitsx2048 steps; (6)data memory (RAM):4 bits x 192 words; (7)61 kinds of powerful instructions sets (all single word instructions).In addition, the TC9319F has built in 2 modulus prescaler, PLL circuit, and IF counter that counts intermediate frequency (IF) in FM and AM bands for detecting broadcasting stations.Furthermore, the TC9319F has built in serial bus control function (SIO instruction) to powerfully control peripheral ICs, 6bit A/D converter and D/A converter that are usable for field strength measurement and electronic volume control, and provides with many functions needed for digital tuning system.

The absolute maximum ratings of the TC9319F can be summarized as:(1)supply voltage:-0.3 to 7.0 V;(2)input voltage:-0.3 to Vdd+0.3V;(3)storage temperature:-65 to 150;(4)power dissipation:400mW;(5)operating temperature:-40 to 85.I/O Port-2 can be programmatically switched to the serial interface. The serial interface is a serial I/O dedicated for powerful control of a group of peripheral optional ICs.When switched to the serial interface, 4 terminals of I/O Port-2 are switched to SI, SO, CK and STB terminals.