LC7232
LC72322
Single-Chip Microcontroller with Built-In LCD Driver and PLL Circuits
Overview
The LC7232/LC72322 is a single-chip microcontroller for use in electronic tuning applications. It includes on chip both LCD drivers and a PLL circuit that can operate at up to 150 MHz. It features a large-capacity ROM, a highly efficient instruction set, and powerful hardware.
&127; Stack: Eight levels
&127; Fast programmable divider
&127; General-purpose counters: HCTR for frequency measurement and LCTR for frequency or period measurement
&127; LCD driver for displays with up to 56 segments (1/2 duty, 1/2 bias)
&127; Program memory (ROM): 4 k words by 16 bits
&127; Data memory (RAM): 256 4-bit digits
&127; All instructions are single-word instructions
&127; Cycle time: 2.67 µs, 13.33 µs, or 40.00 µs (option)
&127; Unlock FF: 0.55 µs detection, 1.1 µs detection
&127; Timer FF: 1 ms, 5ms, 25ms, 125ms
&127; Input ports*: One dedicated key input port and one high-breakdown voltage port
&127; Output ports*: Two dedicated key output ports, one high-breakdown voltage open-drain port Two CMOS output ports (of which one can be switched to be used as LCD driver
outputs) Seven CMOS output ports (mask option switchable to use as LCD ports)
&127; I/O ports*: One switchable between input and output in four-bit units and one switchable between input and output in one-bit units Note: * Each port consists of four bits.
&127; Program runaway can be detected and a special address set (Programmable watchdog timer).
&127; Voltage detection type reset circuit
&127; One 6-bit A/D converter
&127; Two 8-bit D/A converters (PWM)
&127; One external interrupt
&127; Hold mode for RAM backup
&127; Sense FF for hot/cold startup determination
&127; PLL: 4.5 to 5.5 V
&127; CPU: 3.5 to 5.5 V
&127; RAM: 1.3 to 5.5 V
&127; 80-pin QIP
SY202
General programming guidance of LC7232 devices with Seung Yong CPU SYSTEM SY202.
The processors SYSTEM 202 with label Seung Yong are customized mask-programmed CPU's on base of the LC 72322 CPU from Sanyo.
Those in the following specified possibilities apply only to CPU's with the above Seung Yong designation and not to others! Programming are those pin 32, 33, 34, 35 of the CPU.
The indicated bridges must be manufactured from the links indicated in each case to +5 Volt or GND.
Consider please:
With 120 to 400 channel programming must be in the device absolutely the EMG/CH 9-Taste wired, because this becomes with many channel operation automatically the BAND selection button!
SY202 Block Diagram
SY203
General programming guidance of LC7232 devices with Seung Yong CPU SYSTEM SY203.
The processors SYSTEM 202 with label Seung Yong are customized mask-programmed CPU's on base of the LC 7232 CPU from Sanyo.
Those in the following specified possibilities apply only to CPU's with the above Seung Yong designation and not to others! Programming are those pin 33, 34, 35 of the CPU.
The indicated bridges must be manufactured from the links indicated in each case to +5 Volt or GND.
SY203 Block Diagram
SY204
General programming guidance of LC7232 devices with Seung Yong CPU SYSTEM SY204.
The processors SYSTEM 204 with label Seung Yong are customized mask-programmed CPU's on base of the LC 72322 CPU from Sanyo.
Those in the following specified possibilities apply only to CPU's with the above Seung Yong designation and not to others!
SY204 Block Diagram
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