LC723661 Datasheet, PDF (1/12 Pages) Sanyo Semicon Device – CMOS IC Electronic tuning radio for car audio ETR Controllers

Ordering number : ENA0460A
LC723661,
LC723662,
LC723663
CMOS IC
Electronic tuning radio for car audio
ETR Controllers
Overview
The LC723661, 723662 and 723663 are ETR controllers that can support up to 64KB of ROM and up to 4KB of RAM.
These are an 80-pin version of the 100-pin LC723780 series.
They have a built-in serial I/O port and 6-input 8-bit A/D converter to enhance communication with the internal and
external devices.
Functions
• ROM
• RAM
• Stack
• Serial I/O
• External interrupts
• Internal interrupts
: Up to 32K steps (32767×16-bits)
The subroutine area holds 4K steps (4,096×16-bits)
: Up to 8K×4-bits (In banks 00 through 7F)
LC723661-ROM 32KB, RAM 2KB
LC723662-ROM 48KB, RAM 2KB
LC723663-ROM 64KB, RAM 4KB
: 32 levels
: Two channels. These circuits can support both 2-wire and 3-wire 8-bit communication
techniques, and can be switched between MSB first and LSB first operation.
One of six internally generated serial transfer clock rates can be selected: 12.5kHz,
37.5kHz, 187.5kHz, 281.25kHz, 375kHz, and 450kHz
: Five interrupt inputs (pins INT0, 1, 4, and 5, and the HOLD pin)
These interrupts can be set to switch between rising and falling edges, although the HOLD
pin only supports falling edge detection.
: Six interrupts ; four internal timer interrupts, and two serial I/O interrupts.
* This production is produced and sold by SANYO under license of the Silicon Storage Technology Inc.
Specifications and information herein are subject to change without notice.
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 usingany 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.
92006HKIM B8-9066,9070,9071 No.0460-1/12