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LC72336 / LC72338 Single-Chip Microcontrollers with Built-In LCD Driver and PLL Circuits


Overview
The LC72336 and LC72338 are single-chip microcontrollers for use in electronic tuners. These products include on chip a PLL circuit that can operate at up to 150 MHz and 1/3 duty LCD drivers. They feature a highly efficient instruction set and powerful hardware.

Functions
&127; High-speed programmable divider
&127; Program memory (ROM)
— LC72336: 6143 ┤ 16 bits (12 kB)
— LC72338: 8191 ┤ 16 bits (16 kB)
&127; Data memory (RAM): 512 ┤ 4 bits
&127; All instructions are one-word instructions
&127; Cycle time: 1.33 Ás
&127; Stack: 8 levels
&127; LCD drivers: Up to 96 segments (1/3 duty, 1/3 bias)
&127; Serial I/O: Up to 3 channels (8-bit 3-wire type)
&127; External interrupts: 2 interrupts (INT0, INT1) Interrupt on rising or falling edge (selectable)
&127; Internal interrupts: 3 interrupt Two built-in timer interrupts and 1 serial I/O interrupt
&127; Nested interrupt levels: 4 levels
&127; D/A converter: 4 channels (8-bit PWM output)
&127; A/D converter: 4 channels
(6-bit successive approximation) &127; General-purpose ports:
— Input ports: 8
— Output ports: 12 (16 maximum)
— I/O ports: 8 (20 maximum, can be switched between input and output in bit units.)
&127; PLL block: Supports 4 types of dead zone control, and includes a built-in unlock detection circuit. Supports 12 different reference frequencies.
&127; Universal counter: 20 bits (Can be used for either frequency or period measurement.)
&127; Timers: Eight types of time measurement
&127; Beep function: Six beep tones
&127; Reset: Built-in voltage detection type reset circuit
&127; Halt mode: Stops the controller operating clock.
&127; Operating supply voltage: 4.5 to 5.5 V (3.5 to 5.5 V if only the controller block operates.)
&127; 80-pin QIP

General programming guidance of LC72336/8 devices with Maycom CPU SYSTEM EM27
The processors SYSTEM EM27 with label Maycom are customized mask-programmed CPU's on base of the LC 72336/8 CPU from Sanyo.
Those in the following specified possibilities apply only to CPU's with the above Maycom designation and not to others!

EM27 Block Diagram



General programming guidance of LC72336/8 devices with Maycom CPU SYSTEM AH29
The processors SYSTEM AH29 with label Maycom are customized mask-programmed CPU's on base of the LC 72336/8 CPU from Sanyo.
Those in the following specified possibilities apply only to CPU's with the above Maycom designation and not to others!

AH29 Block Diagram



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