© Motorola, Inc. 2004
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Order number: MPC962305
Rev 5, 08/2004
Low-Cost 3.3 V Zero Delay Buffer
The MPC962309 is a zero delay buffer designed to distribute high-speed
clocks. Available in a 16-pin SOIC or TSSOP package, the device accepts one
reference input and drives nine low-skew clocks. The MPC962305 is the 8-pin
version of the MPC962309 which drives five outputs with one reference input.
The -1H versions of these devices have higher drive than the -1 devices and
can operate up to 100/-133 MHz frequencies. These parts have on-chip PLLs
which lock to an input clock presented on the REF pin. The PLL feedback is
on-chip and is obtained from the CLOCKOUT pad.
Features
• 1:5 LVCMOS zero-delay buffer (MPC962305)
• 1:9 LVCMOS zero-delay buffer (MPC962309)
• Zero input-output propagation delay
• Multiple low-skew outputs
• 250 ps max output-output skew
• 700 ps max device-device skew
• Supports a clock I/O frequency range of 10 MHz to 133 MHz,
compatible with CPU and PCI bus frequencies
• Low jitter, 200 ps max cycle-cycle, and compatible with Pentium
®
based
systems
• Test Mode to bypass PLL (MPC962309 only. See “Select Input Decoding”)
• 8-pin SOIC or 8-pin TSSOP package (MPC962305);16-pin SOIC or 16-pin
TSSOP package (MPC962309)
• Single 3.3 V supply
• Ambient temperature range: –40°C to +85°C
• Compatible with the CY2305, CY23S05, CY2309, CY23S09
• Spread spectrum compatible
Functional Description
The MPC962309 has two banks of four outputs each, which can be con-
trolled by the Select Inputs as shown in Table 3.Select Input Decoding for
MPC962309. Bank B can be tri-stated if all of the outputs are not required. Select inputs also allow the input clock to be directly applied
to the outputs for chip and system testing purposes.
The MPC962305 and MPC962309 PLLs enters a power down state when there are no rising edges on the REF input. During this
state, all of the outputs are in tristate, the PLL is turned off, and there is less than 25.0 µA of current draw for the device. The PLL
shuts down in one additional case as shown in Table 3.Select Input Decoding for MPC962309.
Multiple MPC962305 and MPC962309 devices can accept the same input clock and distribute it throughout the system. In this
situation, the difference between the output skews of two devices will be less than 700 ps.
All outputs have less than 200 ps of cycle-cycle jitter. The input-to-output propagation delay on both devices is guaranteed to be
less than 350 ps and the output-to-output skew is guaranteed to be less than 250 ps.
The MPC962305 and MPC962309 are available in two/three different configurations, as shown on the ordering information page.
The MPC962305-1/MPC962309-1 are the base parts. High drive versions of those devices, MPC962305-1H and MPC962309-1H,
are available to provide faster rise and fall times of the base device.
MPC962305
MPC962309
D SUFFIX
16-LEAD SOIC PACKAGE
CASE 751B-05
DT SUFFIX
16-LEAD TSSOP PACKAGE
CASE 948F-01
D SUFFIX
8-LEAD SOIC PACKAGE
CASE 751-06
DT SUFFIX
8-LEAD TSSOP PACKAGE
CASE 948J-01
Frees
cale Semiconductor,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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