MITEL MT8812AP, MT8812AC, MT8812AE Datasheet



ISO-CMOS

MT8812

8 x 12 Analog Switch Array

Features

• Internal cont rol lat ches and add ress d eco der

• Short set-up and hold times

• Wide ope rating v oltag e: 4. 5V to 14.5V

• 14Vpp anal og s ignal capabi lity

•R

• ∆R

65Ω max. @ VDD=14V, 25°C

ON

≤10Ω @ VDD=14V, 25°C

ON

• Full CMOS switch for low distortion

• Minimum f eedthr oug h and c ros stal k

• Low power consumption ISO-CMOS technology

Applications

• PBX systems

• Mobile rad io

• Test e quipme nt / instru men tatio n

• Analo g/ di gita l m ult ip le xers

• Audio/Video switching

ISSUE 5 November 1988

Ordering Information

MT8812AC 40 Pin Ce r am i c D IP
MT8812AE 40 Pin Pla stic D IP
MT8812AP 44 Pin PL C C

0° to 70°C

Description

The Mitel MT8812 is fabricated in MITEL’s ISO­CMOS technology providing low power dissipation
and high reliability. The device contains a 8 x12 array
of crosspoint switches along with a 7 to 96 line
decoder and latch circuits. Any one of the 96
switches can be addressed by selecting the
appropriate seven input bits. The selected switch
can be turned on or off by applying a logical one or
zero to the DATA inpu t.

AX0
AX1
AX2

AX3

AY0
AY1
AY2

STROBE DATA RESET VDD VSS

11

8 x 12

7 to 96

Decoder

Latches

Switch

Array

9696

• • • • • • • • • • • • • • • • • • •

Yi I/O (i=0-7)

Figure 1 - Functional Block Diagram

• • • • • • • • • • • • • • • •

Xi I/O
(i=0-11)

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MT8812 ISO-CMOS

1

Y3

AY2

RESET

AX3
AX0

STROBE

VSS

2
3
4

5
6

NC

7

NC

8

X6

9

X7

10

X8

11

X9

12

X10

13

X11

14

NC

15

Y7

16

NC

17

Y6

18
19

Y5

20

40 PIN CERDIP/PLASTIC DIP 44 PIN PLCC

40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21

VDD
Y2
DATA
Y1
NC
Y0
NC
X0
X1
X2
X3
X4
X5
NC
NC
AY1
AY0
AX2
AX1
Y4

NC
NC

X6
X7

X8

X9
X10
X11

NC
NC
NC

DATA

Y2

VDD

Y3

AY2

RESET

AX3

AX0

NC

65432 44434241
7
8
9
10
11
12
13
14
15
16

17

Y7

Y6

1

231819202122 2425 262728

Y5

VSS

STROBE

Y4

AX1

AX2

AY0

Y1

40

39
38
37
36
35
34
33
32
31
30
29

AY1

Y0

NC
NC
X0
X1
X2
X3
X4
X5
NC
NC
NC

NC

Figure 2 - Pin Connections

Pin Description

Pin #* Name Description

1Y3Y3 Analog (Input/Output): this is connected to the Y3 column of the switch array.
2AY2Y2 Address Line (Input).

3RESETMaster RESET (Input): this is used to turn off all switches. Active High.
4,5 AX3,AX0 X3 and X0 Address Lines (Inputs).
6,7 NC No Connection.

8-13 X6-X11 X6-X11 Analog (Inputs/Outputs): these are connected to the X6-X11 rows of the switch

array.
14 NC No Connection.
15 Y7 Y7 Analog (Input/Output): this is connected to the Y7 column of the switch array.
16 NC No Connection.
17 Y6 Y6 Analog (Input/Output): this is connected to the Y6 column of the switch array.
18 STROBE STROBE (In put): enables function selected by address and data. Address must be stable

before STROB E goes high and DATA mu st be stable on the falling edge of the STRO BE.

Active High.
19 Y5 Y5 Analog (Input/Output): this is connected to the Y5 column of the switch array.
20 V
21 Y4 Y4 Analog (Input/Output): this is connected to the Y4 column of the switch array.

22, 23 AX1,AX2 X1 and X2 Address Lines (Inputs).
24, 25 AY0,AY1 Y0 and Y1 Address Lines (Inputs).
26, 27 NC No Connection.

28 - 33 X5-X0 X5-X0 Analo g (Inputs/ Ou tpu t s): these are connected to the X5-X0 rows of the switch array.

34 NC No Connection.
35 Y0 Y0 Analog (Input/Output): this is connected to the Y0 column of the switch array.
36 NC No Connection.
37 Y1 Y1 Analog (Input/Output): this is connected to the Y1 column of the switch array.
38 DATA DATA (Input): a logic high input will turn on the selected switch and a logic low will turn off the

39 Y2 Y2 Analog (Input/Output): this is connected to the Y2 column of the switch array.
40 V

* Plastic DIP and CERDIP only.

Ground Reference.

SS

selected switch. Active High.

Positive Power Sup pl y.

DD

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