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DS9643 Datasheet, PDF (1/4 Pages) National Semiconductor (TI) – Dual TTL to MOS/CCD Driver
April 1990
DS9643
Dual TTL to MOS CCD Driver
General Description
The DS9643 is a dual positive logic ‘‘AND’’ TTL-to-MOS
driver The DS9643 is a functional replacement for the
SN75322 with one important exception the two external
PNP transistors are no longer needed for operation The
DS9643 is also a functional replacement for the 75363 with
the important exception that the VCC3 supply is not needed
The lead connections normally used for the external PNP
transistors are purposely not internally connected to the
DS9643
Features
Y Satisfies CCD memory and delay line requirements
Y Dual positive logic TTL to MOS driver
Y Operates from standard bipolar and MOS supply volt-
ages
Y High speed switching
Y TTL and DTL compatible inputs
Y Separate drivers address inputs with common strobe
Y VOH and VOL compatible with popular MOS RAMs
Y Does not require external PNP transistors or VCC3
Y VOH minimum is VCC2 b 0 5V
Connection Diagram
8-Lead DIP
Truth Table
Input
L
L
H
H
Enable
L
H
L
H
Output
L
L
L
H
Top View
Order Number DS9643N
See NS Package Number N08E
TL F 9646 – 1
C1995 National Semiconductor Corporation TL F 9646
RRD-B30M115 Printed in U S A