NEC uPD78P078 - Manual (Page 577)

577
CHAPTER 27
µ
PD78P078, 78P078Y
Program Program Verify
A0 to A16
D0 to D7 Data Input
Hi-Z
Data Output
V
PP
V DD
V
DD
+ 1.5
V DD
V IH
V
IL
V IH
V IL
V IH
V
IL
V PP
V DD
CE
PGM
OE
Figure 27-6. Byte Program Mode Timing
Cautions 1. Apply V
DD
before applying V
PP
, and remove it after removing V
PP
.
2. V
PP
must not exceed +13.5 V including overshoot voltage.
3. Disconnecting/inserting the device from/to the on-board socket while +12.5 V is being
applied to V PP may have an adverse affect on reliability.