DS3245J NSC [National Semiconductor], DS3245J Datasheet

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DS3245J

Manufacturer Part Number
DS3245J
Description
DS3245 Quad MOS Clock Driver
Manufacturer
NSC [National Semiconductor]
Datasheet
C 1995 National Semiconductor Corporation
DS3245 Quad MOS Clock Driver
General Description
The DS3245 is a quad bipolar-to-MOS clock driver with TTL
compatible inputs It is designed to provide high output cur-
rent and voltage capabilities necessary for optimum driving
of high capacitance N-channel MOS memory systems
Only 2 supplies 5 V
compromising the usual high V
circuits using a third supply
The device features 2 common enable inputs a refresh in-
put and a clock control input for simplified system designs
The circuit was designed for driving highly capacitive loads
at high speeds and uses Schottky-clamped transistors PNP
transistors are used on all inputs thereby minimizing input
loading
Logic and Connection Diagrams
DC
and 12 V
TL F 5873
OH
DC
specification obtained by
are required without
TL F 5873 – 1
Features
Y
Y
Y
Y
Y
Y
Y
Y
TTL compatible inputs
Operates from 2 standard supplies 5 V
Internal bootstrap circuit eliminates need for external
PNP’s
PNP inputs minimize loading
High voltage current outputs
Input and output clamping diodes
Control logic optimized for use with MOS memory sys-
tems
Pin and function equivalent to Intel 3245
See NS Package Number J16A or N16A
Order Number DS3245J or DS3245N
Dual-In-Line Package
Top View
RRD-B30M115 Printed in U S A
DC
February 1986
12 V
TL F 5873 – 2
DC

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DS3245J Summary of contents

Page 1

... Y Control logic optimized for use with MOS memory sys- Y tems Pin and function equivalent to Intel 3245 Y Dual-In-Line Package Top View Order Number DS3245J or DS3245N See NS Package Number J16A or N16A TL F 5873 – 1 February 1986 5873 – 2 RRD-B30M115 Printed ...

Page 2

Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Temperature Under Bias b Storage Temperature b Supply Voltage V CC Supply Voltage V DD All Input Voltages ...

Page 3

Switching Characteristics Symbol Parameter t Input to Output Delay Delay Plus Rise Time DR t Input to Output Delay Delay Plus Fall Time DF t Output Transition Time T t Delay Plus Rise Time ...

Page 4

... National does not assume any responsibility for use of any circuitry described no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications Ceramic Dual-in-Line Package (J) Order Number DS3245J NS Package Number J16A Molded Dual-in-Line Package (N) ...

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