A SERVICE OF

logo

577
CHAPTER 27
ยต
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 VPP, and remove it after removing VPP.
2. VPP 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.