MK74CB44R 데이터 시트보기 (PDF) - Integrated Circuit Systems
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MK74CB44R Datasheet PDF : 5 Pages
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PRELIMINARY INFORMATION
MK74CB44
Quad 1 to 4 Buffalo™ Clock Driver
Pin Assignment
Suggested Layout
INA 1
QA0 2
QA1 3
QA2 4
VDD 5
VDD 6
QA3 7
QB0 8
GND 9
GND 10
QB1 11
QB2 12
QB3 13
INB 14
28 IND
27 QD0
26 QD1
25 QD2
24 VDD
23 VDD
22 QD3
21 QC0
20 GND
19 GND
18 QC1
17 QC2
16 QC3
15 INC
V
0.01µF
G
V
0.01µF
G
For simplicity,series terminating resistors (required) are not
shown for the outputs, but should be placed as close to the
device as possible. It is most critical to have the 0.01µF
decoupling capacitors closest.
Pin Descriptions
V = connect to VDD G = connect to GND
Number
Name
1
INA
2, 3, 4 QA0, QA1, QA2
5, 6
VDD
7
QA3
8
QB0
9, 10
GND
11, 12, 13 QB1, QB2, QB3
14
INB
15
INC
16, 17, 18 QC3, QC2, QC1
19, 20
GND
21
QC0
22
QD3
23, 24
VDD
25, 26, 27 QD2, QD1, QD0
28
IND
Type
I
O
P
O
o
P
O
I
I
O
P
O
O
P
O
I
Description
Clock input for four A outputs.
Clock A outputs.
Power supply. Connect to +3.3 V or +5 V. Must be the same as pins 23, 24.
Clock A output.
Clock B output.
Connect to ground.
Clock B outputs.
Clock input for four B outputs.
Clock input for four C outputs.
Clock C outputs.
Connect to ground.
Clock C output.
Clock D output.
Power supply. Connect to +3.3 V or +5 V. Must be the same as pins 5, 6.
Clock D outputs.
Clock input for four D outputs.
Type: I = Input, O = output, P = power supply connection
MDS 74CB44 B
2
Revision 022000
Printed 11/17/00
Integrated Circuit Systems, Inc. • 525 Race St. • San Jose • CA • 95126 • (408)295-9800tel • www.icst.com
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