Supply voltage range: 2V to 6V Typical input voltage level: 0.8 x Vcc (minimum) to 2.0V (maximum) Maximum input current: ±1mA Maximum output current: ±25mA Maximum propagation delay time: 12ns (at 5V and 25°C) Operating temperature range: -40°C to 85°C Octal buffer/line driver with 3-state outputs function Eight input/output pins (1A to 8A and 1Y to 8Y) Two active-low output enable control pins (OE1 and OE2) TTL-compatible input voltage level CMOS-compatible output voltage level 20-pin DIP