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CMOS LSI
Ordering number : EN
*
5117
92995HA (OT) No. 5117-1/39
Preliminary
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
4-Bit Microcomputer
for Small-Scale Control Applications
LC6529N, LC6529F, LC6529L
Overview
The LC6529N/F/L provides the basic architecture and
instruction set of the Sanyo LC6500 Series of 4-bit single-
chip microcomputers in a version specially for small-scale
control applications involving circuits built with standard
logic elements, applications using simple, comparator-
based voltage or phase detectors, or other applications
controlling a limited number of controls. The LC6529F is
a replacement for the former LC6529H. (Certain functions
differ, however.) The N (medium-speed) and L (power-
saving) versions are new additions to the lineup.
Features
Power-saving CMOS design (Standby mode accessed
with HALT instruction included.)
Memory: 1 kilobyte of 8-bit ROM and 64 words of 4-bit
RAM
Instruction set: 51-member subset of LC6500 standard
complement of 80 instructions
(L version) Wide range of operating voltages:
2.2 to 6.0 V
(F version) 0.92 μs/3.0 V instruction cycle time
Flexible I/O ports
Four ports with up to 16 lines
— Bidirectional I/O ports: 12
Dedicated input ports: 4 (These double as
comparator inputs.)
— I/O voltage limit: max. +15 V (open-drain
configuration)
— Output current: max. 20 mA sink current (capable of
directly driving an LED)
Choice of options to match system specifications
— Choice of open-drain or pull-up resistor output
configurations at the bit level for all ports
— Choice of reset output levels for Ports C and D in
groups of 4 bits each
Port E configurable as four comparator inputs
Stack: Four levels
Timers: 4-bit prescaler plus 8-bit programmable counter
Comparators: 4 channels (2 reference levels)
Separator reference level for each channel pair
— Feedback resistor option for choice of input with or
without hysteresis
Choice of clock oscillator options to match system
specifications
— Oscillator circuit options: 2-pin RC oscillator circuit
(N and L versions) or 2-pin ceramic oscillator circuit
(N, F, and L versions)
— Frequency divider options: Built-in 1/3 and 1/4
frequency dividers that eliminate the need for
external frequency dividers