Overview

The LC66P5316 is an on-chip OTP PROM version of the LC6653XX Series CMOS 4-bit single-chip microcontrollers. The LC66P5316 is appropriate for program development and product evaluation since it provides identical functionality and pin compatibility with the LC665316A.

Features and Functions

• On-chip OTP ROM capacity of 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: 42 pins

• A sub-oscillator circuit can be used (option)

This circuit allows power dissipation to be reduced by

operating at lower speeds.

• 8-bit serial interface: two circuits (can be connected in

cascade to form a 16-bit interface)

• Instruction cycle time: 0.95 to 10 µs (at 4.0 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 8 interrupt factors and 8

interrupt vector locations.

— External interrupts: 3 factors/3 vector locations

— Internal interrupts: 5 factors/5 vector locations

• Flexible I/O functions

16-value comparator inputs, 20-mA drive outputs,

inverter circuits, pull-up and open-drain circuits

selectable as options.

• Optional runaway detection function (watchdog timer)

• 8-bit I/O functions

• Power saving functions using halt and hold modes.

• Packages: DIP48S, QIP48E (QFP48E)

• Evaluation LSIs: LC66599 (evaluation chip) +

EVA800/850-TB662YXX2