NEC PD78214 - Manual (Page 431)

402
µ
PD78214 Sub-Series
Fig. 17-3 PROM Read Timing Chart
Address input
A0-A14
Hi-Z
Data output
CE (input)
OE (input)
D0-D7
Hi-Z
17.4 NOTE
When V
PP
is +12.5 V and V
DD
is +6 V, CE and OE must not be set to low at the same time.