SG1625 National Semiconductor Corporation, SG1625 Datasheet

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SG1625

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
Datasheet
© 2002 National Semiconductor Corporation
DS0026
Dual High-Speed MOS Driver
General Description
DS0026 is a low cost monolithic high speed two phase MOS
clock driver and interface circuit. Unique circuit design pro-
vides both very high speed operation and the ability to drive
large capacitive loads. The device accepts standard TTL
outputs and converts them to MOS logic levels. The device
may be driven from standard 54/74 series and 54S/74S
series gates and flip-flops or from drivers such as the
DS8830 or DM7440. The DS0026 is intended for applica-
tions in which the output pulse width is logically controlled;
i.e., the output pulse width is equal to the input pulse width.
The DS0026 is designed to fulfill a wide variety of MOS
interface requirements. Information on the correct usage of
the DS0026 in these as well as other systems is included in
the application note AN-76.
Connection Diagram (Top View)
DS005853
Dual-In-Line Package
Features
n Fast rise and fall times — 20 ns 1000 pF load
n High output swing — 20V
n High output current drive —
n TTL compatible inputs
n High rep rate — 5 to 10 MHz depending on power
n Low power consumption in MOS “0” state — 2 mW
n Drives to 0.4V of GND for RAM address drive
dissipation
00585302
±
1.5 amps
February 2002
www.national.com

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SG1625 Summary of contents

Page 1

... Information on the correct usage of the DS0026 in these as well as other systems is included in the application note AN-76. Connection Diagram (Top View) © 2002 National Semiconductor Corporation Features n Fast rise and fall times — 1000 pF load n High output swing — 20V n High output current drive — ...

Page 2

Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. + − − Differential Voltage Input Current − Input Voltage (V ) − ...

Page 3

Switching Characteristics Note 4: All typical values for T = 25˚C. A Note 5: Rise and fall time are given for MOS logic levels; i.e., rise time is transition from logic “0” to logic “1” which is voltage fall. Note ...

Page 4

Typical Performance Characteristics Recommended Input Coding Capacitance Schematic Diagram www.national.com (Continued) 00585327 1/2 DS0026 4 DC Power ( Duty Cycle 00585328 00585310 ...

Page 5

AC Test Circuits and Switching Time Waveforms Typical Applications AC Coupled MOS Clock Driver DC Coupled RAM Memory Address or Precharge Driver (Positive Supply Only) 00585312 FIGURE 1. 00585314 FIGURE 2. Application Hints 00585316 DRIVING THE MM5262 WITH THE DS0026 ...

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Application Hints (Continued) Line ringing comes from the fact that at a high enough frequency any line must be considered as a transmission line with distributed inductance and capacitance. To see how much ringing can be tolerated we must examine ...

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Application Hints (Continued) Lastly, the clock lines must be considered as noise genera- tors. Figure 5 shows a clock coupled through a parasitic coupling capacitor eight data input lines being driven 7404. A parasitic ...

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Physical Dimensions www.national.com inches (millimeters) unless otherwise noted Molded Dual-In-Line Package (N) Order Number DS0026CN NS Package Number N08E 8-Lead Small Outline Molded package (M) NS Package Number M08A 8 ...

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... NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant ...

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