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74F191SC 데이터시트 PDF




Fairchild에서 제조한 전자 부품 74F191SC은 전자 산업 및 응용 분야에서
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부품번호 74F191SC 기능
기능 Up/Down Binary Counter with Preset and Ripple Clock
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74F191SC 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.




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74F191SC 데이터시트, 핀배열, 회로
April 1988
Revised July 1999
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.
Features
s High-Speed—125 MHz typical count frequency
s Synchronous counting
s Asynchronous parallel load
s Cascadable
Ordering Code:
Order Number Package Number
Package Description
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
74F191PC
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbols
Connection Diagram
IEEE/IEC
© 1999 Fairchild Semiconductor Corporation DS009495
www.fairchildsemi.com




74F191SC pdf, 반도체, 판매, 대치품
Absolute Maximum Ratings(Note 1)
Storage Temperature
65°C to +150°C
Ambient Temperature under Bias
55°C to +125°C
Junction Temperature under Bias
55°C to +150°C
VCC Pin Potential to Ground Pin
Input Voltage (Note 2)
0.5V to +7.0V
0.5V to +7.0V
Input Current (Note 2)
30 mA to +5.0 mA
Voltage Applied to Output
in HIGH State (with VCC = 0V)
Standard Output
3-STATE Output
0.5V to VCC
0.5V to +5.5V
Current Applied to Output
in LOW State (Max)
twice the rated IOL (mA)
Recommended Operating
Conditions
Free Air Ambient Temperature
Supply Voltage
0°C to +70°C
+4.5V to +5.5V
Note 1: Absolute maximum ratings are values beyond which the device
may be damaged or have its useful life impaired. Functional operation
under these conditions is not implied.
Note 2: Either voltage limit or current limit is sufficient to protect inputs.
DC Electrical Characteristics
Symbol
Parameter
Min
Typ
Max
Units
VCC
Conditions
VIH
VIL
VCD
VOH
VOL
IIH
IBVI
ICEX
VID
IOD
Input HIGH Voltage
Input LOW Voltage
Input Clamp Diode Voltage
Output HIGH
Voltage
Output LOW
Voltage
Input HIGH
Current
Input HIGH Current
Breakdown Test
Output HIGH
Leakage Current
Input Leakage
Test
Output Leakage
Circuit Current
10% VCC
5% VCC
10% VCC
2.0
2.5
2.7
4.75
V
0.8 V
1.2 V
V
0.5 V
Recognized as a HIGH Signal
Recognized as a LOW Signal
Min IIN = −18 mA
Min IOH = −1 mA
IOH = −1 mA
Min IOL = 20 mA
5.0 µA Max VIN = 2.7V
7.0 µA Max VIN = 7.0V
50 µA Max VOUT = VCC
V
3.75 µA
0.0 IID = 1.9 µA,
All Other Pins Grounded
0.0 VIOD = 150 mV
All Other Pins Grounded
IIL Input LOW Current
IOS Output Short-Circuit Current
ICC Power Supply Current
0.6 mA Max VIN = 0.5V (except CE)
1.8
VIN = 0.5V (CE)
60 150 mA Max VOUT = 0V
38 55 mA Max
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74F191SC 전자부품, 판매, 대치품
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Package Number N16E
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and
Fairchild reserves the right at any time without notice to change said circuitry and specifications.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD
SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the
body, or (b) support or sustain life, and (c) whose failure
to perform when properly used in accordance with
instructions for use provided in the labeling, can be rea-
sonably expected to result in a significant injury to the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be rea-
sonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
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