• LCD, 1 row by 16 alphanumeric, 5×5, characters. Plus 1 row by 16, 7-segment, digits and 1 row of symbols/icons.
• Atmel AT24C32 i2C 2-Wire Serial EEPROM.
• Promax-Johnton PJ31002 Tone ringer for telephone set.
• Unisonic MC34018 Voice switched speaker phone circuit.
• Unidentified 8 pin i2C chip, A?90150 E251 F

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