D78F9177
D78F9177 8-BIT SINGLE-CHIP MICROCONTROLLER by NEC (QFP 44 Pin Type): datasheet PDF, pinout and specifications.
NEC's semiconductor business made transistors, microcontrollers such as the 78K and V850, memory and display ICs. NEC Electronics merged with Renesas Technology in 2010 to form Renesas Electronics, which continues these lines.

D78F9177 8-BIT SINGLE-CHIP MICROCONTROLLER by NEC (QFP 44 Pin Type): datasheet PDF, pinout and specifications.
C4558C Dual Operational Amplifier by NEC (DIP or SOP 8 pin): datasheet PDF, pinout and specifications.
C4570C Dual Ultra Low-Noise, Operational Amplifier by NEC (DIP or SOP 8pin, SIP 9 Pin type): datasheet PDF, pinout and specifications.
4585M Low Noise, Bipolar Input Dual, Audio Operational amplifier by NEC (DMP8 Pin Type): datasheet PDF, pinout and specifications.
C1237HA Protector IC for Stereo Power Amplifier by NEC (SIP 8 Pin): datasheet PDF, pinout and specifications.
UP7711U8 2A Ultra Low Dropout Linear Regulator by NEC (SOP 8 Pin): datasheet PDF, pinout and specifications.
78F9116B 8-Bit Single-Chip Microcontroller by NEC (30-pin plastic SSOP): datasheet PDF, pinout and specifications.
2SC3356 NPN Microwave Low-Noise Transistor by NEC: datasheet PDF, pinout and specifications.
2SC3355 NPN High-Frequency Low-Noise Transistor by NEC: datasheet PDF, pinout and specifications.