Overview The LC7233N-8818 is a single-chip electronic tuning microcontroller that supports control of an electronic tone/volume control IC (the LC7538JMD) and handles detachable front panel products based on the LC75853E/W keyed LCD driver. It is designed for automotive use and incorporates a PLL-based receiver that can receive all major worldwide radio transmissions.

FEATUREs
• Supports detachable front panel products. System chips: LC7233N, LC75853E/W and LC7538JMD
• Supports anti-theft LED flashing and reminder to remove panel alarm functions.
• Supports control of an electronic tone/volume control IC (the LC7538JMD). Functions: bass, treble, balance, fader
• Muting function (with key, out and electronic tone controls)
• Supports two color illumination control (dual systems).
• Reduced LCD display output pin count achieved by operating at 1/3 duty and 1/3 bias drive using the LC75853E/W.
• Up to 36 stations can be stored in preset memory: 6 stations for each band (FM1, FM2, FM3, VF, MW (MW1) and LW (MW2)). Previous station function also supported.
• Auto preset memory function
• Radio monitor output: operates during tape FF/REW.
• CD function (with key, in, and out)
• Tape function (Flashing direction display supported when FF and REW signal inputs are provided.)
• Rich selection of double function keys for use with tape players
• Tape character display
• Supports use of electronic power switch.
• Twenty diode matrix settings
• Supports radio reception throughout the world.
• Supports AM stereo reception in the USA and Japan.