74F190 National Semiconductor, 74F190 Datasheet

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74F190

Manufacturer Part Number
74F190
Description
Up/Down Decade Counter
Manufacturer
National Semiconductor
Datasheet

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Part Number
Manufacturer
Quantity
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Part Number:
74F190PC
Manufacturer:
NXP
Quantity:
14 972
C 1995 National Semiconductor Corporation
54F 74F190
Up Down Decade Counter with Preset and Ripple Clock
General Description
The ’F190 is a reversible BCD (8421) decade counter fea-
turing synchronous counting and asynchronous presetting
The preset feature allows the ’F190 to be used in program-
mable dividers The Count Enable input the Terminal Count
output and the Ripple Clock output make possible a variety
of methods of implementing multistage counters In the
counting modes state changes are initiated by the rising
edge of the clock
Logic Symbols
TRI-STATE is a registered trademark of National Semiconductor Corporation
Note 1 Devices also available in 13 reel Use suffix
Note 2 Military grade device with environmental and burn-in processing Use suffix
74F190PC
74F190SC (Note 1)
Commercial
IEEE IEC
54F190DM (Note 2)
54F190FM (Note 2)
54F190LM (Note 2)
TL F 9494–1
TL F 9494–4
TL F 9494
Military
e
SCX
DIP SOIC and Flatpak
Pin Assignment for
Package
N16E
J16A
M16A
W16A
E20A
Number
Features
Y
Y
Y
Y
Connection Diagrams
16-Lead (0 300 Wide) Molded Dual-In-Line
16-Lead Ceramic Dual-In-Line
16-Lead (0 150 Wide) Molded Small Outline JEDEC
16-Lead Cerpack
20-Lead Ceramic Leadless Chip Carrier Type C
High-speed 125 MHz typical count frequency
Synchronous counting
Asynchronous parallel load
Cascadable
e
TL F 9494 – 2
DMQB FMQB and LMQB
Package Description
Pin Assignment
for LCC
RRD-B30M75 Printed in U S A
November 1994
TL F 9494 – 3

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74F190 Summary of contents

Page 1

... Commercial Military 74F190PC 54F190DM (Note 2) 74F190SC (Note 1) 54F190FM (Note 2) 54F190LM (Note 2) Note 1 Devices also available in 13 reel Use suffix Note 2 Military grade device with environmental and burn-in processing Use suffix Logic Symbols TL F 9494– ...

Page 2

Unit Loading Fan Out Pin Names Description CE Count Enable Input (Active LOW) CP Clock Pulse Input (Active Rising Edge) P –P Parallel Data Inputs Asynchronous Parallel Load Input (Active LOW Down Count Control ...

Page 3

Logic Diagram Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays 9494 – 6 ...

Page 4

... Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Storage Temperature b Ambient Temperature under Bias b Junction Temperature under Bias b Plastic b V Pin Potential to CC Ground Pin Input Voltage (Note 2) ...

Page 5

AC Electrical Characteristics Symbol Parameter f Maximum Clock Frequency max t Propagation Delay PLH PHL n t Propagation Delay PLH PHL t Propagation Delay PLH PHL t Propagation ...

Page 6

Ordering Information The device number is used to form part of a simplified purchasing code where the package type and temperature range are defined as follows Temperature Range Family 74F Commercial e 54F Military e Device Type Package Code P ...

Page 7

7 ...

Page 8

Physical Dimensions inches (millimeters) 20-Lead Ceramic Leadless Chip Carrier (L) 16-Lead Ceramic Dual-In-Line Package (D) NS Package Number E20A NS Package Number J16A 8 ...

Page 9

Physical Dimensions inches (millimeters) (Continued) 16-Lead (0 150 Wide) Molded Small Outline Package JEDEC (S) 16-Lead (0 300 Wide) Molded Dual-In-Line Package (P) NS Package Number M16A NS Package Number N16E 9 ...

Page 10

... National Semiconductor National Semiconductor National Semiconductores Japan Ltd Hong Kong Ltd Do Brazil Ltda Sumitomo Chemical 13th Floor Straight Block ...

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