MPC952 Просмотр технического описания (PDF) - Motorola => Freescale
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MPC952 Datasheet PDF : 7 Pages
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MPC952
PLL_En
Figure 1. MPC952 Logic Diagram
REFCLK
PHASE
DETECTOR
VCO
200–480MHz
÷2
FBin
LPF
VCO_Sel (Int Pull Down)
fsela (Int Pull Down)
fselb (Int Pull Down)
fselc (Int Pull Down)
MR/OE (Int Pull Down)
÷4/÷6
Qa0
Qa1
Qa2
Qa3
Qa4
÷4/÷2
Qb0
Qb1
Qb2
Qb3
÷2/÷4
Qc0
Qc1
VCCO
Qb2
Qb3
GNDO
GNDO
Qc0
Qc1
VCCO
24 23 22 21 20 19 18 17
25
16
26
15
27
14
28
13
MPC952
29
12
30
11
31
10
32
9
12345678
VCCO
Qa2
Qa1
GNDO
Qa0
VCCI
VCCA
PLL_En
Figure 2. 32–Lead Pinout (Top View)
FUNCTION TABLES
fsela Qan fselb Qbn fselc Qcn
0
÷4
0
÷4
0
÷2
1
÷6
1
÷2
1
÷4
Control Pin
VCO_Sel
MR/OE
PLL_En
Logic ‘0’
fVCO
Output Enable
Enable PLL
Logic ‘1’
fVCO/2
High Z
Disable PLL
Pin Name
VCCA
VCCO
VCCI
GNDI
GNDO
Description
PLL Power Supply
Output Buffer Power Supply
Internal Core Logic Power Supply
Internal Ground
Output Buffer Ground
MOTOROLA
2
ECLinPS and ECLinPS Lite
DL140 — Rev 3
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