DATA
SHEET
MPC9817
Freescale Semiconductor
Technical Data
Rev 1, 11/2004
Clock Generator for PowerQUICC and PowerPC
Clock Generator
for PowerQUICC
Microprocessors
and Microcontrollers
and PowerPC Microprocessors and
The MPC9817 is a PLL-based clock generator specifically designed for
Freescale Semiconductor Microprocessor and Microcontroller applications
including the PowerPC and PowerQUICC. This device generates the
microprocessor input clock and other microprocessor system and bus clocks at
any one of four output frequencies. These frequencies include the popular
33- and 66-MHz PCI bus frequencies. The device offers five low-skew clock
outputs plus three reference outputs. The clock input reference is 25 MHz and
may be derived from an external source or by the addition of a 25-MHz crystal to
the on-chip crystal oscillator. The extended temperature range of the MPC9817
supports telecommunication and networking requirements.
Features
•
•
•
•
•
•
•
•
•
•
5 LVCMOS outputs for processor and other system circuitry
3 Buffered 25-MHz reference clock outputs
Crystal oscillator or external reference input
25-MHz input reference frequency
Selectable output frequencies include: 25, 33, 50, or 66 MHz
Low cycle-to-cycle and period jitter
Package: 20-lead SSOP
3.3-V supply
Supports computing, networking, and telecommunications applications
Ambient temperature range: –40°C to +85°C
MPC9817
MPC9817
MICROPROCESSOR
CLOCK GENERATOR
SD SUFFIX
20 SSOP PACKAGE
CASE 1461-01
EN SUFFIX
20 SSOP PACKAGE
Pb-FREE PACKAGE
CASE 1461-01
Functional Description
The MPC9817 uses a PLL with a 25-MHz input reference frequency to generate a single bank of five configurable LVCMOS
output clocks. The output frequency of this bank is configurable to either 25, 33, 50, or 66 MHz by two FSEL pins. The 25-MHz
reference may be either an external frequency source or a 25-MHz crystal. The 25-MHz crystal is directly connected to the
XTAL_IN and XTAL_OUT pins with no additional components required. An external reference may be applied to the XTAL_IN
pin with the XTAL_OUT pin left floating. The input reference, whether provided by a crystal or an external input, is also directly
buffered to a second bank of three LVCMOS outputs. These outputs may be used as the clock source for processor I/O
applications such as an Ethernet PHY. When FSEL0 and FSEL1 are both configured low, the QA outputs are directly fed from
the input reference providing a total of eight low-skew 25-MHz outputs. For all other combinations of FSEL0 and FSEL1 the
single-ended LVCMOS outputs provide five low-skew outputs for use in driving a microprocessor or microcontroller clock input
as well as other system components.
The MPC9817 is packaged in a 20-lead SSOP package.
IDT™ Clock Generator for PowerQUICC and PowerPC Microprocessors and Microcontrollers
© Freescale
Semiconductor,
Inc., has
2004.
All rights
reserved.
Freescale
Timing Solutions
Organization
been
acquired
by Integrated Device Technology, Inc
1
MPC9817
MPC9817
Clock Generator for PowerQUICC and PowerPC Microprocessors and Microcontrollers
NETCOM
QA0
XTAL_IN
Ref
OSC
XTAL_OUT
QA1
PLL
33,50,66 MHz
400 MHz
QA2
QA3
FSEL0
QA4
Data
Generator
FSEL1
25 MHz
QREF0
QREF1
QREF2
MR/OE
Figure 1. MPC9817 Logic Diagram
Table 1. Pin Configurations
I/O
Type
QA0, QA1, QA2, QA3, QA4
Pin
Output
LVCMOS
Clock Outputs
QREF0, QREF1, QREF2
Output
LVCMOS
Reference Output (25 MHz)
Input
LVCMOS
Crystal Oscillator Input Pin
XTAL_IN
XTAL_OUT
Function
Output
LVCMOS
Crystal Oscillator Output Pin
FSEL0, FSEL1
Input
LVCMOS
Configures Bank A Clock Output Frequency (pull-up)
MR/OE
Input
LVCMOS
Enables All Outputs (pull-down)
VDD
—
—
3.3-V Supply
GND
—
—
Ground
Table 2. Function Table
Control
FSEL0,FSEL1
Default
00
01
10
11
11
25 MHz fed directly
from reference input,
PLL disabled
33 MHz
50 MHz
66 MHz
MPC9817
IDT™ Clock
Generator for PowerQUICC and PowerPC Microprocessors and Microcontrollers
Freescale Timing Solutions Organization has been acquired by Integrated Device Technology, Inc
2
2
MPC9817
Advanced Clock Drivers Devices
Freescale Semiconductor
MPC9817
Clock Generator for PowerQUICC and PowerPC Microprocessors and Microcontrollers
XTAL_IN
1
20
VDD
XTAL_OUT
2
19
QA4
FSEL0
3
18
QA3
VDD
4
17
GND
FSEL1
5
16
QA2
QREF2
6
15
QA1
GND
7
14
VDD
QREF1
8
13
QA0
QREF0
9
12
MR/OE
10
11
GND
VDD
NETCOM
Figure 2. MPC9817 20-Lead SSOP Package Pinout (Top View)
MPC9817 OPERATION
Crystal Oscillator
The MPC9817 features a fully integrated Pierce oscillator
to minimize system implementation costs. Other than the
addition of a 25-MHz crystal, no external components are
required.The crystal selection should be: 25 MHz, parallel
resonant type with a load specification of CL = 10 pF. Crystals
with a load specification of CL = 20 pF may be used, however,
the reference frequency may be higher than the specified
25 MHz. Externally supplied capacitors on both the XTAL_IN
and XTAL_OUT pins may be used to trim the frequency as
desired.
The crystal should be located as close to the MPC9817
XTAL_IN and XTAL_OUT pins as possible to avoid any board
level parasitic.
Table 3. Crystal Specifications
Parameter
Value
Crystal Cut
Fundamental AT Cut
Resonance
Parallel Resonance
Shunt Capacitance (CL)
5–7 pF
Load Capacitance (CO)
10 pF
Equivalent Series Resistance (ESR)
20–60 Ω
Power Supply Bypassing
The MPC9817 should have all VDD pins bypassed with
0.01 capacitors and a minimum of one 1.0 capacitor for the
overall package. All capacitors should be located as close to
the SSOP pins as possible.
External Clock Source
An external reference source of 25 MHz may be applied to
the XTAL_IN pin. In this mode of operation, the XTAL_OUT
pin should be left floating.
IDT™ Clock Generator for PowerQUICC and PowerPC Microprocessors and Microcontrollers
Advanced
Clock Drivers
Devices has been acquired by Integrated Device Technology, Inc
Freescale
Timing Solutions
Organization
Freescale Semiconductor
3
MPC9817
MPC9817
3
MPC9817
Clock Generator for PowerQUICC and PowerPC Microprocessors and Microcontrollers
NETCOM
Table 4. Absolute Maximum Ratings(1)
Symbol
VDD
IIN
IOUT
TS
Characteristics
Min
Max
Unit
–0.3
3.8
V
DC Input Current
—
±20
mA
DC Output Current
—
±75
mA
–65
125
°C
Supply Voltage
Storage Temperature
Condition
1. Absolute maximum continuous ratings are those maximum values beyond which damage to the device may occur. Exposure to these
conditions or conditions beyond those indicated may adversely affect device reliability. Functional operation at absolute-maximum-rated
conditions is not implied.
Table 5. General Specifications
Symbol
Characteristics
Min
Typ
Max
Unit
—
VDD ÷ 2
—
V
ESD Protection (machine model)
200
—
—
V
ESD Protection (human body model)
2000
—
—
V
LU
Latch-Up Immunity
200
—
—
mA
CIN
Input Capacitance
—
4
—
pF
θJA
Thermal Resistance (junction-to-ambient)
—
80.8
—
°C/W
TC
Ambient Temperature
85
°C
VTT
Output Termination Voltage
MM
HBM
–40
Condition
Inputs
Table 6. DC Characteristics (VDD = 3.3 V ± 5%, TA = –40° to +85°C)
Symbol
Min
Typ
Max
Unit
VIH
Input High Voltage (XTAL_IN)
2.4
—
VDD + 0.3
V
VIH
Input High Voltage
2.0
—
VDD + 0.3
V
VIL
Input Low Voltage
—
—
0.8
V
LVCMOS
IIN
Input Current(1)
—
—
150
µA
VIN = VDDL or GND
VOH
Output High Voltage
2.4
—
—
V
IOH = –12 mA
VOL
Output Low Voltage
—
—
0.4
V
IOL = 12 mA
ZOUT
Output Impedance
—
14
—
Ω
Maximum Quiescent Supply Current
—
8.0
15.0
mA
IDD
Characteristics
Condition
Input threshold = VDD/2
VDD pins
1. Inputs have pull-down resistors affecting the input current.
MPC9817
IDT™ Clock
Generator for PowerQUICC and PowerPC Microprocessors and Microcontrollers
Freescale Timing Solutions Organization has been acquired by Integrated Device Technology, Inc
4
4
MPC9817
Advanced Clock Drivers Devices
Freescale Semiconductor
MPC9817
Clock Generator for PowerQUICC and PowerPC Microprocessors and Microcontrollers
NETCOM
Table 7. AC Characteristics(1) (2) (VDD = 3.3 V ± 5%, TA = –40° to +85°C)
Symbol
Characteristics
Min
Typ
Max
Unit
Condition
Input and Output Timing Specification
fref
Input Reference Frequency
fVCO
VCO Frequency Range
fMCX
Output Frequency (QAx)
25 MHz Input
XTAL Input
25
25
—
400
—
MHz
25
33
50
66
25
—
—
—
—
—
MHz
MHz
MHz
MHz
MHz
PLL locked
10
—
—
ns
@ 25 MHz
47.5
50
52.5
%
—
—
100
0
ppm
ppm
FSEL0, FSEL1 = 00
FSEL0, FSEL1 = 01
FSEL0, FSEL1 = 10
FSEL0, FSEL1 = 11
Output Frequency (QREFx)
frefPW
DC
fout
Reference Input Pulse Width
Output Duty Cycle
Crystal(3)
Output Frequency Accuracy
External Reference
MHz
MHz
With recommended crystal
see Table 3
PLL Specifications
BW
tLOCK
PLL Closed Loop Bandwidth(4)
500
Maximum PLL Lock Time
kHz
10
ms
ps
Skew and Jitter Specifications
tsk(O)
Output-to-Output Skew (within a bank)
100
tsk(O)
Output-to-Output Skew (between bank A and bank Ref)
200
tJIT(CC)
Cycle-to-Cycle Jitter
150
ps
@ 25 MHz Input Reference
QA output
tJIT(PER)
Period Jitter
100
ps
@ 25 MHz Input Reference
QA output
1
ns
20% to 80%
tr, tf
1.
2.
3.
4.
Output Rise/Fall Time
FSEL0, FSEL1 = 00
AC characteristics are design targets and pending characterization.
AC characteristics apply for parallel output termination of 50 Ω to VTT.
Based upon recommended crystal specifications as outlined in operation section.
–3 dB point of PLL transfer characteristics.
Pulse
Generator
Z = 50 Ω
Z = 50 Ω
Z = 50 Ω
RT = 50 Ω
DUT MPC9817
RT = 50 Ω
VTT
VTT
Figure 3. MPC9817 AC Test Reference (LVCMOS Outputs)
IDT™ Clock Generator for PowerQUICC and PowerPC Microprocessors and Microcontrollers
Advanced
Clock Drivers
Devices has been acquired by Integrated Device Technology, Inc
Freescale
Timing Solutions
Organization
Freescale Semiconductor
5
MPC9817
MPC9817
5
MPC9817
Clock Generator for PowerQUICC and PowerPC Microprocessors and Microcontrollers
NETCOM
Table 8. MPC9817 Pin List
Pin
Description
Pin
Description
1
XTAL_IN
11
GND
2
XTAL_OUT
12
MR/OE
3
FSEL0
13
QA0
4
VDD
14
VDD
5
FSEL1
15
QA1
6
QREF2
16
QA2
7
GND
17
GND
8
QREF1
18
QA3
9
QREF0
19
QA4
10
VDD
20
VDD
MPC9817
IDT™ Clock
Generator for PowerQUICC and PowerPC Microprocessors and Microcontrollers
Freescale Timing Solutions Organization has been acquired by Integrated Device Technology, Inc
6
6
MPC9817
Advanced Clock Drivers Devices
Freescale Semiconductor
MPC9817
Clock Generator for PowerQUICC and PowerPC Microprocessors and Microcontrollers
NETCOM
PACKAGE DIMENSIONS
.236
.157
.150
4
D
.061
.055
5
PIN 1 ID
18X
1
20
B
.025
B
4
4
B
A
.0125
.344
.337
10
CL
5
11
3
2X
.118
.003 H
2X 10 TIPS
.010 C
H
C
A-B D
SEATING
PLANE
20X
.004 C
A-B D
7
A
A
0˚
MIN
(.010)
BASE METAL
R.003 MIN
.010
.007
(.008)
.010
.0098
.0040
GAUGE PLANE
.012
.008
.007
M
PLATING
C A-B D
SECTION A-A
8˚
0˚
.035
.016
6
SECTION B-B
8
NOTES:
1. DIMENSIONS ARE IN INCHES.
2. DIMENSIONING AND TOLERANCING PER ASME
Y14.5M, 1994.
3. DATUM PLANE H LOCATED AT MOLD PARTING
LINE AND COINCIDENT WITH LEAD, WHERE
LEAD EXITS PLASTIC BODY AT BOTTOM OF
PARTING LINE.
4. DATUM A, B AND D TO BE DETRMINED WHERE
CENTERLINE BETWEEN LEADS EXITS PLASTIC
BODY AT DATUM PLANE H.
5. THIS DIMENSION DOES NOT INCLUDE MOLD
FLASH OR PROTRUSIONS, BUT DO INCLUDE
MOLD MISMATCH AND ARE MEASURED AT THE
MOLD PARTING LINE. MOLD FLASH OR
PROTRUSIONS SHALL NOT EXCEED .006
INCHES FOR ENDS AND .008 INCHES FOR
SIDES.
6. THIS DIMENSION IS LENGTH OF TERMINAL FOR
SOLDERING A SUBSTRATE.
7. FORMED LEADS SHALL BE PLANAR WITH
RESPECT TO ONE ANOTHER WITHIN .004
INCHES AT SEATING PLANE.
8. THIS DIMENSION IS DEFINED AS THE DISTANCE
FROM THE SEATING PLANE TO THE LOWEST
POINT OF THE PACKAGE BODY.
CASE 1461-02
ISSUE O
20 SSOP PACKAGE
IDT™ Clock Generator for PowerQUICC and PowerPC Microprocessors and Microcontrollers
Advanced
Clock Drivers
Devices has been acquired by Integrated Device Technology, Inc
Freescale
Timing Solutions
Organization
Freescale Semiconductor
7
MPC9817
MPC9817
7
MPC9817
MPC92459
PART NUMBERS
900
Clock
MHz
Generator
Low Voltage
forNAME
PowerQUICC
LVDS
Clock
and
Synthesizer
PowerPC
Microprocessors and Microcontrollers
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