LC662304A

CMOS LSI No. 5483 LC662304A, 662306A, 662308A, 662312A, 662316A Four-Bit Single-Chip Microcontrollers with 4, 6, 8, 12, and 16 KB of On-Chip ROM Preliminary Overview The LC662304A, LC662306A, LC662308A, LC662312A, and LC662316A are 4-bit CMOS microcontrollers that integrate on a single chip all the functions required in a special-purpose telephone controller, including ROM, RAM, I/O ports, a serial interface, a DTMF generator, timers, and interrupt functions. These microcontrollers are available in a 42-pin package. Package Dimensions unit: mm 3025B-DIP42S [LC662304A/662306A/662308A/662312A/662316A] 42 22 15.24 Features and Functions On-chip ROM capacities of 4, 6, 8, 12, and 16 kilobytes, and an on-chip RAM capacity of 512 × 4 bits. Fully supports the LC66000 Series common instruction set (128 instructions). I/O ports: 36 pins DTMF generator This microcontroller incorporates a circuit that can generate two sine wave outputs, DTMF output, or a melody output for software applications. 8-bit serial interface: one circuit Instruction cycle time: 0.95 to 10 µs (at 3.0 to 5.5 V) Powerful timer functions and prescalers — Time limit timer, event counter, pulse width measurement, and square wave output using a 12-bit timer. — Time limit timer, event counter, PWM output, and square wave output using an 8-bit timer. — Time base function using a 12-bit prescaler. Powerful interrupt system with 10 interrupt factors and 7 interrupt vector locations. — External interru...