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PDF CD22M3494 Data sheet ( Hoja de datos )
| Número de pieza | CD22M3494 | |
| Descripción | 16 x 8 x 1 BiMOS-E Crosspoint Switch | |
| Fabricantes | Intersil Corporation | |
| Logotipo |  |
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Data Sheet
CD22M3494
January 1997 File Number 2793.5
16 x 8 x 1 BiMOS-E Crosspoint Switch
The Intersil CD22M3494 is an array of 128 analog switches
capable of handling signals from DC to video. Because of
the switch structure, input signals may swing through the
total supply voltage range, VDD to VEE. Each of the 128
switches may be addressed via the ADDRESS input to the 7
to 128 line decoder. The state of the addressed switch is
established by the signal to the DATA input. A low or zero
input will open the switch, while a high logic level or a one
will result in closure of the addressed switch when the
STROBE input goes high from its normally low state. Any
number or combination of connections may be active at one
time. Each connection, however, must be made or broken
individually in the manner previously described. All switches
may be reset by taking the RESET input from a zero state to
a one state and then returning it to its normal low state.
CS allows crosspoint array to be cascaded for matrix expansion.
Ordering Information
PART
NUMBER
TEMP.
RANGE (oC)
PACKAGE
PKG. NO.
CD22M3494E
CD22M3494MQ
CD22M3494SQ
-40 to 85
-40 to 85
-40 to 85
40 Ld PDIP
E40.6
44 Ld PLCC
N44.65
(Mitel Ld Compatible)
44 Ld PLCC
N44.65
(SGS Ld Compatible)
Features
• 128 Analog Switches
• Low RON
• Guaranteed RON Matching
• Analog Signal Input Voltage Equal to the Supply Voltage
• Wide Operating Voltage . . . . . . . . . . . . . . . . . . 4V to 15V
• Parallel Input Addressing
• High Latch Up Current . . . . . . . . . . . . . . . . . . 50mA (Min)
• Very Low Crosstalk
• Pin and Functionally Compatible with the Following Types:
SGS M3494 and Mitel MT8816
Applications
• PBX Systems
• Instrumentation
• Analog and Digital Multiplexers
• Video Switching Networks
Block Diagram
AX0
AX1
AX2
AX3
AY0
AY1
AY2
CS STROBE
DATA RESET
11
1
7 TO 128
DECODER
128
LATCHES
128
LEVEL
SHIFTERS
128
VDD
16 X 8
SWITCH
ARRAY
X0 - X15
VSS
VEE
Y0 - Y7
65 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999
1 page  
CD22M3494
TRUTH TABLE X AXIS
X ADDRESS
AX3 AX2 AX1 AX0
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
X SWITCH
X0
X1
X2
X3
X4
X5
X12
X13
X6
X7
X8
X9
X10
X11
X14
X15
TRUTH TABLE Y AXIS
Y ADDRESS
AY2 AY1 AY0 Y SWITCH
0 0 0 Y0
0 0 1 Y1
0 1 0 Y2
0 1 1 Y3
1 0 0 Y4
1 0 1 Y5
1 1 0 Y6
1 1 1 Y7
To make a connection (close switch) between any two points, specify an “X” address, a “Y” address, set “DATA” high, and switch
“STROBE” from low to high. To break a connection, follow this same procedure with “DATA” low.
Example:
To connect switch X3 to switch Y4:
To connect switch X6 to switch Y7:
To break connection from X3 to Y4:
DATA
1
1
0
X ADDRESS
AX3 AX2 AX1 AX0
0011
1000
0011
Y ADDRESS
AY2 AY1 AY0
100
111
100
Typical Performance Curve
70
60
50
40
30
20
RON VS VIN AT -55oC, 25oC AND 85oC
VEE = -6v, VSS = 0V, VDD = 6V
85oC
25oC
-40oC
10
0
-8 -6 -4 -2 0 2 4 6 8
VIN (V)
69
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet CD22M3494.PDF ] | |
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