Product number (P/N): TM4356P,
Keywords/Tags: TM4356P
Date of intro: ~1973, Case: Type = Dual In Line (DIL) 20,
Classification: / Part / IC,
Info: 9-Channel Display Driver (High-voltage transistor array).
Acts as an interface bridge.
The CalcChip outputs low-voltage logic signals.
The TM4356P amplifies these signals to the higher voltages required to illuminate Vacuum Fluorescent Displays (VFD) or Gas-Discharge tubes.
Symptom: Missing digits or specific segments permanently off/onPrimary Suspect: TM4356P.
Reason: Individual channels inside the driver array frequently short-circuit or blow open due to the high-voltage load from the VFD display.
Used in: KOKUYO: KC80D, MBO: TRS1300, PRINZTRONIC: C44, SANYO: CX8100A, SANYO: CY8001T, SHARP: EL815S, SHARP_parts(E): PWBE1116 (PCB), SHARP_parts(E): PWBI073 (PCB), TOSHIBA_parts(E): 4462141002 (PCB), TOSHIBA_parts(E): 4462750021 (PCB)