SG1625 National Semiconductor Corporation, SG1625 Datasheet - Page 5

• Manufacturer Part Number: SG1625
• Description: DS0026 - 5 MHZ Two Phase MOS Clock Driver Life-time Buy , Package: Soic Narrow, Pin Nb=8
• Manufacturer: National Semiconductor Corporation

AC Test Circuits and Switching Time Waveforms
Typical Applications
DC Coupled RAM Memory Address or Precharge
AC Coupled MOS Clock Driver
Driver (Positive Supply Only)
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FIGURE 1.
FIGURE 2.
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5
Application Hints
DRIVING THE MM5262 WITH THE
DS0026 CLOCK DRIVER
The clock signals for the MM5262 have three requirements
which have the potential of generating problems for the user.
These requirements, high speed, large voltage swing and
large capacitive loads, combine to provide ample opportunity
for inductive ringing on clock lines, coupling clock signals to
other clocks and/or inputs and outputs and generating noise
on the power supplies. All of these problems have the po-
tential of causing the memory system to malfunction. Rec-
ognizing the source and potential of these problems early in
the design of a memory system is the most critical step. The
object here is to point out the source of these problems and
give a quantitative feel for their magnitude.
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