Sharp LC-42D65U Service Manual page 59

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LC-42D65U
1.6. IC8151/IC8152/IC8153/IC8154 (RH-iXC317WJQZQ)
These are 256-Mbit (16M x 16bit) DDR synchronous DRAM.
1.7. IC8451 (RH-iXC318WJQZY)
This is 8k-bit EEPROM device including the HDCP key data.
1.8. IC8452 (VHiS29GL1282EQ)
The 256M-bit page mode flash memory device stores the main CPU program.
1.9. IC9003 (VHiM3221EiP-1Y)
This IC is a single driver, single receiver RS-232 solution operating from a single Vcc supply.
The device provides the electrical interface between an asynchronous communication controller and the serial-port connector.
The IC has the function of "Auto-Power down".
By this function, drivers are disabled automatically for power-saving.
7 – 2

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