MPC9448 Motorola, MPC9448 Datasheet - Page 2

• Manufacturer Part Number: MPC9448
• Description: 3.3V/2.5V LVCMOS 1:12 Clock Fanout Buffer
• Manufacturer: Motorola

MPC9448
CLK_STOP
1. OE=0 will high-impedance tristate all outputs independent on CLK_STOP.
Table 1. FUNCTION TABLE
Table 2. PIN CONFIGURATION
MOTOROLA
CLK_SEL
CLK_SEL
OE
CLK_STOP
PCLK, PCLK
CCLK
CLK_SEL
CLK_STOP
OE
Q0--11
GND
V
CC
PCLK
PCLK
CCLK
Control
OE
Pin
V
V
V
CC
CC
CC
(all input resistors have a value of 25kΩ)
Figure 1. Logic Diagram
Default
V
1
1
1
CC
0
1
SYNC
PECL differential input selected
Outputs disabled (high-impedance state)
Outputs synchronously stopped in logic low state
Input
Input
Input
Input
Input
Output
Supply
Supply
I/O
Freescale Semiconductor, Inc.
STOP
CLK
For More Information On This Product,
LVPECL
LVCMOS
LVCMOS
LVCMOS
LVCMOS
LVCMOS
Ground
V
CC
Type
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0
Clock signal input
Alternative clock signal input
Clock input select
Clock output enable/disable
Output enable/disable (high--impedance tristate)
Clock outputs
Negative power supply (GND)
Positive power supply for I/O and core. All V
the positive power supply for correct operation
Q9
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
Q10
Q11
2
1
GND
GND
V
V
Q3
Q2
Q1
Q0
CC
CC
CCLK input selected
Outputs enabled
Outputs active
Figure 2. 32- -Lead Package Pinout
25
26
27
28
29
30
31
32
1
24
2
23
Function
3
22
MPC9448
(Top View)
21
4
CC
20
5
1
pins must be connected to
19
6
TIMING SOLUTIONS
18
7
17
8
16
15
14
13
12
10
11
9
GND
Q8
V
Q9
GND
Q10
V
Q11
CC
CC