MITEL MT8814AP, MT8814AE, MT8814AC Datasheet
ISO-CMOS
MT8814
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 13.2V
• 12Vpp anal og s ignal capabi lity
•R
• ∆R
65Ω max. @ VDD=12V, 25°C
ON
≤ 10Ω @ VDD=12V, 25°C
ON
• Full CMOS switch for low distortion
• Minimum f eedthr oug h and c ros stal k
• Separate ana lo g and di gital re ferenc e supp lies
• Low power consumption ISO-CMOS technology
Applications
• Key systems
• PBX systems
• Mobile rad io
• Test equipment /instru men tatio n
• Analo g/ di gita l m ult ip le xers
• Audio/Video switching
ISSUE 2 November 1988
Ordering Information
MT8814AC 40 Pin Ce r am i c D IP
MT8814AE 40 Pin Pla stic D IP
MT8814AP 44 Pin PL C C
-40° to 85°C
Description
The Mitel MT8814 is fabricated in MITEL’s ISOCMOS technology providing low power dissipation
and high reliability. The device contains a 8 x 12
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 address bits. The selected switch
can be turned on or off by applying a logical one or
zero to the DATA input. V
of the digital inputs. The range of the analog signal
is from V
to VEE. Chip Select (CS) allows the
DD
crosspoint array to be cascaded for matrix
expansion.
is the ground reference
SS
AX0
AX1
AX2
AX3
AY0
AY1
AY2
CS STROBE DATA RESET VDD VEE 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)
3-33
3-33
MT8814 ISO-CMOS
1
Y3
AY2
RESET
AX3
AX0
X10
X11
VSS
STROBE
VSS
2
3
4
5
6
NC
7
NC
8
X6
9
X7
10
X8
11
X9
12
13
14
NC
15
Y7
16
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
CS
Y0
NC
X0
X1
X2
X3
X4
X5
NC
NC
AY1
AY0
AX2
AX1
Y4
AX0
NC
X6
X7
X8
X9
X10
X11
NC
Y7
VSS
DATA
Y2
VDD
Y3
AY2
RESET
AX3
NC
NC
65432 44434241
7
8
9
10
11
12
13
14
15
16
17
Y6
NC
1
231819202122 24 2526 2728
Y5
VEE
STROBE
Y4
AX1
AX2
AY0
Y1
40
39
38
37
36
35
34
33
32
31
30
29
AY1
CS
Y0
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 Add ress Lin e (Inp ut).
3 RESET Master RESET (Input): this is used to turn off all switches regardless of the condition of
CS. 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 V
17 Y6 Y6 Analog (Input/Output): this is connected to the Y6 column of the switch array.
18 STROB E STROBE (Input): enables function selected by address and data. Address must be stable
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-X 0 Analog (Inp uts/Ou tp uts): these are connected to the X5-X0 rows of the switch
34 NC No Connection.
35 Y0 Y0 Anal og (Input/Ou tpu t): this is connected to the Y0 column of the switch array.
36 CS Chip Select (Input): this is used to select the device. Active High.
37 Y1 Y1 Anal og (Input/Ou tpu t): 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
39 Y2 Y2 Anal og (Input/Ou tpu t): this is connected to the Y2 column of the switch array.
40 V
* Plastic DIP and CERDIP only
Digital Ground Reference .
SS
before STRO BE goes high and DATA must be stable on the falling edge of the STROBE .
Active High.
Negative Power Supply.
EE
array.
the selected switch. Active High.
Positive Pow er Supp ly.
DD
3-34
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