First line: TMC3220 TMC3220 Three Port Register File Words Bits, 20MHz TMC3220 word 8-bit three port register file with write port read ports. Separate enable controls data input independent outputs allow considerable flexibility applications requiring synchronous asynchronous data buffering multiplexing. ManufAbstract: .. Screening Package Package Number Marking TMC3220J4C STD-Ta = 0 °C to 70 °C Commercial 48 Pin Hermetic Ceramic DIP 3220J4C 3220J4C TMC3220J4V TMC3220J4V EXT-TC=-55 °C 1o 125 °C MIL-STD-883 MIL-STD-883 48 Pin Hermetic Ceramic .. Tags: TMC3220datasheet abstract..