74F191SC Fairchild Semiconductor, 74F191SC Datasheet

IC COUNTER DECADE UP/DOWN 16SOIC

74F191SC

Manufacturer Part Number
74F191SC
Description
IC COUNTER DECADE UP/DOWN 16SOIC
Manufacturer
Fairchild Semiconductor
Series
74Fr
Datasheets

Specifications of 74F191SC

Logic Type
Binary Counter
Direction
Up, Down
Number Of Elements
1
Number Of Bits Per Element
4
Timing
Synchronous
Count Rate
100MHz
Trigger Type
Positive Edge
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
16-SOIC (3.9mm Width)
Dc
0012
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Reset
-
Other names
74F191SC.

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
74F191SCX
Manufacturer:
FAIRCHILD/仙童
Quantity:
20 000
© 1999 Fairchild Semiconductor Corporation
74F191SC
74F191SJ
74F191PC
74F191
Up/Down Binary Counter with Preset and Ripple Clock
General Description
The 74F191 is a reversible modulo-16 binary counter fea-
turing synchronous counting and asynchronous presetting.
The preset feature allows the 74F191 to be used in pro-
grammable dividers. The Count Enable input, the Terminal
Count output and Ripple Clock output make possible a
variety of methods of implementing multistage counters. In
the counting modes, state changes are initiated by the ris-
ing edge of the clock.
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbols
Order Number
Package Number
IEEE/IEC
M16A
M16D
N16E
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
DS009495
Features
Connection Diagram
High-Speed—125 MHz typical count frequency
Synchronous counting
Asynchronous parallel load
Cascadable
Package Description
April 1988
Revised July 1999
www.fairchildsemi.com

Related parts for 74F191SC

74F191SC Summary of contents

Page 1

... Ordering Code: Order Number Package Number 74F191SC M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow 74F191SJ M16D 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide ...

Page 2

Unit Loading/Fan Out Pin Names CE Count Enable Input (Active LOW) CP Clock Pulse Input (Active Rising Edge) P –P Parallel Data Inputs Asynchronous Parallel Load Input (Active LOW) U/D Up/Down Count Control Input Q –Q Flip-Flop ...

Page 3

FIGURE 1. n-Stage Counter Using Ripple Clock FIGURE 2. Synchronous n-Stage Counter Using Ripple Carry/Borrow FIGURE 3. Synchronous n-Stage Counter with Gated Carry/Borrow Logic Diagram Please note that this diagram is provided only for the understanding of logic operations and ...

Page 4

Absolute Maximum Ratings Storage Temperature Ambient Temperature under Bias Junction Temperature under Bias V Pin Potential to Ground Pin CC Input Voltage (Note 2) Input Current (Note 5.0 mA Voltage Applied to Output in HIGH State ...

Page 5

AC Electrical Characteristics Symbol Parameter f Maximum Count Frequency MAX t Propagation Delay PLH PHL n t Propagation Delay PLH PHL t Propagation Delay PLH PHL t Propagation ...

Page 6

Physical Dimensions inches (millimeters) unless otherwise noted 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide www.fairchildsemi.com Package Number M16A Package Number M16D 6 ...

Page 7

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right ...

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