MT8808
ISO-CMOS
AY2
STROBE
VEE
DATA
VSS
X0
X2
X4
X6
RESET
Y7
Y6
Y5
Y4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
AY1
AY0
AX2
AX1
AX0
X1
X3
X5
X7
VDD
Y0
Y1
Y2
Y3
4
3
2
1
28
27
26
•
DATA
VEE
STROBE
AY2
AY1
AY0
AX2
28 PIN CERDIP/PLASTIC DIP
Figure 2 - Pin Connections
Pin Description
Pin #
1
2
Name
AY2
AY2 Address Line (Input).
Description
STROBE
STROBE (Input):
enables function selected by address and data. Address must be stable
before STROBE goes high and DATA must be stable on the falling edge of the STROBE.
Active High.
V
EE
DATA
V
SS
X0, X2,
X4, X6
RESET
Y7 - Y0
V
DD
X7, X5,
X3, X1
AX0-
AX2
Negative Power Supply.
DATA (Input):
a logic high input will turn on the selected switch and a logic low will turn off
the selected switch. Active High.
Digital Ground Reference .
X0, X2, X4 and X6 Analog (Inputs/Outputs):
these are connected to the X0, X2, X4 and
X6 rows of the switch array.
Master RESET (Input):
this is used to turn off all switches. Active High.
Y7 - Y0 Analog (Inputs/Outputs):
these are connected to the Y0 - Y7 columns of the
switch array.
Positive Power Supply.
X7, X5, X3 and X1 Analog (Inputs/Outputs):
these are connected to the X7, X5, X3 and
X1 rows of the switch array.
AX0 - AX2 Address Lines (Inputs).
3
4
5
6-9
10
11-18
19
20-23
24-26
27,28
AY0, AY1
AY0 and AY1 Address Lines (Inputs).
3-16
Y6
Y5
Y4
Y3
Y2
Y1
Y0
12
13
14
15
16
17
18
VSS
X0
X2
X4
X6
RESET
Y7
5
6
7
8
9
10
11
25
24
23
22
21
20
19
AX1
AX0
X1
X3
X5
X7
VDD
28 PIN PLCC
MITEL [ MITEL NETWORKS CORPORATION ]
