![](/html/Intersil/404353/page5.png)
HM-6642
A
E
G
P
VCC
Q
VCC PROG
VIH
VIL
VIH
VIL
VCC PROG
VIH
VIL
VCC PROG
VIH
VIL
VCC PROG
VCC
GND
VCC PROG
VIH/VOH
VIL/VOL
PROGRAMMING
tD
tD
VALID
tD
tD
VERIFY
VALID
TEHEL
tD
tD
tPW
tD
tR
tF
FIGURE 1. HM-6642 PROGRAMMING CYCLE
READ DATA
A
VIH
VIL
VIH
E
VIL
VCC
6.0V
5.0V
4.0V
0.0V
VOH
Q
VOL
TAVEL
VALID
TEHEL
TEHEL
tD
TEHEL
tD
TELQV
READ
TELQV
READ
FIGURE 2. HM-6642 POST PROGRAMMING VERIFY CYCLE
TELQV
READ
6-5