5.1 Operating Modes Table 5-1. Operating Modes Mode CE OE WE I/O Read VIL VIL VIH DOUT Write(1) VIL VIH VIL DIN Standby/Write Inhibit VIH X(2) X High-Z Write Inhibit X X VIH Write Inhibit X VIL X Output Disable X VIH X High-Z Note: Refer to AC Programming Waveforms. X can be VIL or VIH.