SAB 8031A-P 8-bit Single Chip Microcontroller DIP-40 IC

From the shop's description

Features: Version for 12MHz/16MHz/ 20 MHz Operating frequency 4Kx8 ROM 128 x 8 RAM Four 8-bit ports, 32 110 lines Two 16-bit timer/event counters High-performance full-duplex serial channel with flexible transmit/receive bound rate capability External memory expandable up to 128Kbyte Compatible with SAB 8080/8085 peripherals Boolean processor 218 user bit-addressable locatk>ns Most instructions execute in: 1 µS instruction cycle time at 2 MHz 750 ns instruction cycle t!me at 16 MHz 600 ns instruction cycle time at 20 MHz 4 µS (3 µS, 2.4 µS) multiply and divide Package: DIP-40 ABSOLUTE MAXIMUM RATINGS Item Symbol Ratings Unit Voltage on any pin relative to Vss VIN,VOUT -0.5 to VCC+0.5 V Voltage on Vcc supply relative to Vss VCC -0.5 to 7.0 V Power Dissipation PD 1.0 W Storage temperature TSTG -65 to 150 °C Operating Temperature TA 0 to 70 °C SAB8031a Datasheet