LC723781N Datasheet, PDF (1/14 Pages) Sanyo Semicon Device – CMOS IC Electronic tuning system for car audio ETR Microcontrollers

Ordering number : ENN8011A
LC723781N
LC723782N
LC723783N
LC723784
LC723785
CMOS IC
Electronic tuning system for car audio
ETR Microcontrollers
Overview
The LC723780 Series are large-capacity ETR microcontrollers that can support up to 128KB of ROM and up to 8KB of
RAM. In addition to the expanded table reference instruction to support large-capacity program ROM, the LC723780
Series provide enhanced interrupt capability to directly control CD mechanism and CD-DSP, and the capability to
support the RDS models. They also have a built-in serial I/O port and an 8-input 8-bit A/D converter for communicating
with the internal and external devices, and for minimizing the connecting wire between the front panel board and the
main board, particularly for car audio systems.
The on-chip high-performance PLL circuit provides a high-speed lock circuit used to search for alternative frequencies of
RDS in a short time, the ability to control the C/N characteristics of a local oscillator, and the high S/N through the direct
PLL configuration.
Functions
• ROM
• RAM
• Stack
: Up to 64K steps (65,535×16-bits)
The subroutine area holds 4K steps (4,096×16-bits)
: Up to 16K×4-bits (In banks 00 through FF)
LC723781N-ROM : 40KB, RAM : 2KB
LC723782N-ROM : 48KB, RAM : 2KB
LC723783N-ROM : 64KB, RAM : 4KB
LC723784-ROM : 96KB, RAM : 6KB
LC723785-ROM : 128KB, RAM : 8KB
: 32levels
Any and all SANYO Semiconductor products described or contained herein do not have specifications
that can handle applications that require extremely high levels of reliability, such as life-support systems,
aircraft's control systems, or other applications whose failure can be reasonably expected to result in
serious physical and/or material damage. Consult with your SANYO Semiconductor representative
nearest you before using any SANYO Semiconductor products described or contained herein in such
applications.
SANYO Semiconductor assumes no responsibility for equipment failures that result from using products
at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition
ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor
products described or contained herein.
92706 / 80505HKIM B8-9065,9068,9069,8420,8219 / 91004JOIM No.8011-1/14