参数资料
型号: MPC972FA
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 时钟产生/分配
英文描述: 125 MHz, PROC SPECIFIC CLOCK GENERATOR, PQFP52
封装: LQFP-52
文件页数: 6/12页
文件大小: 337K
代理商: MPC972FA
MPC972
MOTOROLA ADVANCED CLOCK DRIVERS DEVICE DATA
188
Figure 2. Logic Diagram
POWERON
RESET
VCO
PHASE
DETECTOR
LPF
PLL_En
Qa0
VCO_Sel
Q
Qa1
TCLK0
REF_SEL
Ext_FB
0
1
D
Qa2
Qa3
Sync
Frz
Qb0
Q
Qb1
D
Qb2
Qb3
Sync
Frz
Qc0
Q
Qc1
D
Qc2
Qc3
Sync
Frz
QFB
Q
D
fsela0:1
fselb0:1
Frz_Data
fselc0:1
fselFB0:1
÷4, ÷6, ÷8, ÷12
÷4, ÷6, ÷8, ÷10
÷2, ÷4, ÷6, ÷8
0
1
QSync
Q
D
Sync
Frz
÷2
÷4, ÷6, ÷8, ÷10
Sync Pulse
Data Generator
Output Disable
Circuitry
Frz_Clk
12
2
MR/OE
0
1
TCLK1
TCLK_Sel
Q
D
Sync
Frz
Inv_Clk
fselFB2
xtal2
xtal1
2
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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