PRELIMINARY INFORMATION
MK74ZD133
PLL and 32-Output Clock Driver
Pin Assignments
OUT1 1
OUT2 2
GND 3
CLKIN 4
FBIN 5
VDD 6
VDD 7
FBOUT3 8
OUT4 9
GND 10
OUT5 11
OUT6 12
VDD5:8 13
OUT7 14
OUT8 15
GND 16
OUT9 17
OUT10 18
VDD9:12 19
OUT11 20
OUT12 21
GND 22
VDD13:14 23
OE 24
OUT13 25
OUT14 26
GND 27
VDD 28
SSOP
56 OUT32/S4
55 VDD
54 OUT31/S3
53 OUT30/S2
52 OUT29/S1
51 GND
50 VDD
49 OUT28/S0
48 OUT27
47 OUT26
46 OUT25
45 GND
44 OUT24
43 OUT23
42 VDD21:24
41 OUT22
40 OUT21
39 GND
38 OUT20
37 OUT19
36 VDD
35 VDD
34 GND
33 OUT18
32 OUT17
31 OUT16
30 OUT15
29 VDD
F Package 300 mil wide
FBOUT3 1
OUT4 2
GND 3
OUT5 4
OUT6 5
VDD5:8 6
OUT7 7
OUT8 8
GND 9
OUT9 10
OUT10 11
VDD9:12 12
OUT11 13
OUT12 14
GND 15
VDD13:14 16
LQFP
48 VDD
47 OUT28/S0
46 OUT27
45 OUT26
44 OUT25
43 GND
42 OUT24
41 OUT23
40 VDD21:24
39 OUT22
38 OUT21
37 GND
36 OUT20
35 OUT19
34 VDD
33 VDD
Y Package 10mm x 10mm x 1.4mm
Controlling the Output Blocks
The MK74ZD133 offers a unique power supply structure that effectively creates five separate blocks of
outputs. The main supply (VDD) goes to all internal circuitry and to 18 outputs, as shown in the Pin
Descriptions table. The other 14 outputs are split into 4 blocks that are powered independently of the main
VDD supply. Each block has its own supply which can be the same as VDD, less than VDD, or left
unpowered to shut off the corresponding outputs. For example, with VDD = 3.3 V, VDD5:8 can be
unconnected and the OUT5:8 levels will be floating. The table below summarizes the power supply control
of the MK74ZD133.
VDVDDDoNnapmine s
VDD5:8
VDD9:12
VDD13:14
VDD21:24
F Pin # Y Pin #
13
6
19
12
23
16
42
40
Output Name
OUT5:8
OUT9:12
OUT13:14
OUT21:24
F Pin Numbers
11, 12, 14, 15
17, 18, 20, 21
25, 26
40, 41, 43, 44
Y Pin Numbers
4, 5, 7, 8
10, 11, 13, 14
19, 20
38, 39, 41, 42
F Main Supply
6, 7, 28, 29
35, 36, 50, 55
Y Main Supply
24, 25, 33, 34
48, 54, 62, 63
and 64
MDS 74ZD133 C
2
Revision 010899
Printed 11/17/00
Integrated Circuit Systems, Inc.•525 Race Street•San Jose•CA•95126•(408)295-9800tel•www.icst.com