SN75LVDM976, SN75LVDM977
9-CHANNEL DUAL-MODE TRANSCEIVERS
SLLS292B – APRIL 1998 – REVISED JANUARY 2000
logic diagram (positive logic)
CDE1
LVD
B
INV/NON
SE
+
–
–
+
A
2.4 V
(Internal)
CDE0
0.5 V
(Internal)
1DEb
1DE/RE
1A
1DEb
1DEa
1REb
1B –
1DEa
1REa
1REb
1REa
1B +
2A
2DE/RE
3A
3DE/RE
4A
4DE/RE
INV/NON
CDE2
Channel 2
Channel 3
Channel 4
SE
LVD
2B –
2B +
3B –
3B +
4B –
4B +
5A
5DE/RE
6A
6DE/RE
7A
7DE/RE
8A
8DE/RE
INV/NON
9DE/RE
9DEb
9DEa
Channel 5
Channel 6
Channel 7
Channel 8
SE
LVD
9DEb
9REb
5B –
5B +
6B –
6B +
7B –
7B +
8B –
8B +
9A
9B –
9DEa
9REa
9B +
9REb
9REa
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
3