P89C538NBAA manual: 80C51 8-bit microcontroller family, 64k x 8 FLASH EPROM program memory.

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P89C538NBAA Datasheet and P89C538NBAA manual

Manufacturer : Philips

Packing : SOT187-2

Pins : 44

Temperature : Min 0 °C | Max 70 °C

Size : 295 KB

Application : 80C51 8-bit microcontroller family, 64k x 8 FLASH EPROM program memory.