Prom Write Procedure; Page Program Mode Flowchart - NEC PD78081(A) User Manual

15.2.2 PROM write procedure

Address = Address + 1
CHAPTER 15
Figure 15-2. Page Program Mode Flowchart
Start
Address = G
V = 6.5 V, V = 12.5 V
DD PP
X = 0
Latch
Address = Address + 1
Latch
Address = Address + 1
Latch
Address = Address + 1
Latch
X = X + 1
0.1-ms program pulse
Verify 4 Bytes
Pass
No
Address = N?
Yes
V = 4.5 to 5.5 V, V
DD PP
Pass
All bytes verified?
All Pass
End of write
PD78P083
Remark:
G = Start address
N = Last address of program
Fail
= V
DD
Fail
No
Yes
X = 10?
Defective product
209