MT8808 Просмотр технического описания (PDF) - Mitel Networks
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MT8808 Datasheet PDF : 6 Pages
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MT8808 ISO-CMOS
AY2 1
STROBE 2
VEE 3
DATA 4
VSS 5
X0 6
X2 7
X4 8
X6 9
RESET 10
Y7 11
Y6 12
Y5 13
Y4 14
28 AY1
27 AY0
26 AX2
25 AX1
24 AX0
23 X1
22 X3
21 X5
20 X7
19 VDD
18 Y0
17 Y1
16 Y2
15 Y3
28 PIN CERDIP/PLASTIC DIP
VSS 5
•
25 AX1
X0 6
24 AX0
X2 7
23 X1
X4 8
22 X3
X6 9
21 X5
RESET 10
20 X7
Y7 11
19 VDD
28 PIN PLCC
Figure 2 - Pin Connections
Pin Description
Pin #
1
2
3
4
5
6-9
10
11-18
19
20-23
24-26
27,28
Name
Description
AY2 AY2 Address Line (Input).
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.
VEE
DATA
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.
VSS
X0, X2,
X4, X6
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.
RESET Master RESET (Input): this is used to turn off all switches. Active High.
Y7 - Y0 Y7 - Y0 Analog (Inputs/Outputs): these are connected to the Y0 - Y7 columns of the
switch array.
VDD
X7, X5,
X3, X1
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- AX0 - AX2 Address Lines (Inputs).
AX2
AY0, AY1 AY0 and AY1 Address Lines (Inputs).
3-16
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