参数资料
型号: MPC990/D
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 时钟产生/分配
英文描述: OTHER CLOCK GENERATOR, PQFP52
封装: TQFP-52
文件页数: 2/7页
文件大小: 324K
代理商: MPC990/D
MPC990
MOTOROLA ADVANCED CLOCK DRIVERS DEVICE DATA
264
QFB
VCCO
Qd0
Qd1
VCCO
Qc0
Qc1
VCCA
fsel0
Qb2
fsel1
Qb1
fsel2
Qb0
VCCO
Qc2
fsel3
GNDI
MR
PLL_En
Ref_Sel
fselFB2
fselFB1
fselFB0
Test_Clk
VCCI
Ext_FB
xtal1
xtal2
Ext_FB
40
41
42
43
44
45
46
47
48
49
50
51
52
25
24
23
22
21
20
19
18
17
16
15
14
1234
56789
10
11
12
13
39
38
37
36
35
34
33
32
31
30
29
28
27
26
MPC990
VCO_Sel
SYNC_Sel
Qa3
Qa2
Qa1
Qa0
VCCO
Qb3
Figure 1. 52–Lead Pinout (Top View)
FUNCTION TABLE 1
INPUTS
OUTPUTS
fsel3
fsel2
fsel1
fsel0
Qa
Qb
Qc
0
÷2
0
1
÷2
÷4
0
1
0
÷2
÷4
0
1
÷2
÷6
0
1
0
÷2
÷6
0
1
0
1
÷2
÷4
÷6
0
1
0
÷2
÷4
÷8
0
1
÷2
÷6
÷8
1
0
÷2
÷8
1
0
1
÷2
÷8
1
0
1
0
÷4
÷6
1
0
1
÷4
÷6
1
0
÷4
÷6
÷8
1
0
1
÷6
÷8
1
0
÷6
÷8
1
÷8
2
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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