18
3
Series of Decoders
Decoder timing
Encoder/Decoder selection tables
•
Latch type of data output
P a ck a ge
Da t a Ad d r ess
P a r t No.
VT P a ir En cod er
En cod er
SOP SDIP DIP
Decod er
SOP SDIP
P in s
P in s
DIP
18
18
18
18
20
20
20
20
24
24
24
24
HT682L
HT683L
2
3
10
9
√
√
HT680
HT680
HT6187
HT680
HT600
HT600
HT6207
HT600
HT640
HT640
HT6247
HT640
—
—
—
—
20
20
—
20
24
24
—
24
—
18
—
—
—
18
—
—
HT684L
HT602L
4
2
8
√
√
—
—
18
20
—
20
—
—
12
HT604L
4
10
√
—
20
20
—
HT605L
HT644L
5
4
9
√
√
—
24
20
—
20
24
—
24
14
HT646L
HT648L
6
8
12
10
√
√
24
24
—
—
24
24
24
24
6
2nd Oct ’97
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
