U74AHC3G17L-P08-R 概述
NON-INVERTING SCHMITT TRIGGER
U74AHC3G17L-P08-R 数据手册
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PDF下载UNISONIC TECHNOLOGIES CO., LTD
U74AHC3G17
CMOS IC
NON-INVERTING SCHMITT
TRIGGER
DESCRIPTION
The U74AHC3G17 is a high-speed triple Schmitt-trigger buffer.
It provides three Schmitt-trigger buffers with the function Y=A.
The trigger is capable of transforming slowly changing input signals
into sharply defined, jitter-free output signals.
TSSOP-8
FEATURES
* Low power supply 1.0μA at 5.5V
* Wide supply voltage range from 2V to 5.5V
* Up to 5.5V inputs accept voltages
* Symmetrical output impedance
* High noise immunity
* Balanced propagation delays
APPLICATION
* Astable multivibrators
* Monostable multivibrators
* Wave and pulse shapers
ORDERING INFORMATION
Ordering Number
Lead Free
Package
Packing
Halogen Free
U74AHC3G17L-P08-R
U74AHC3G17L-P08-T
U74AHC3G17G-P08-R
U74AHC3G17G-P08-T
TSSOP-8
TSSOP-8
Tape Reel
Tube
www.unisonic.com.tw
Copyright © 2011 Unisonic Technologies Co., Ltd
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U74AHC3G17
CMOS IC
PIN CONFIGURATION
1A
3Y
VCC
1Y
1
2
3
4
8
7
2A
6
5
3A
2Y
GND
FUNCTION TABLE
LOGIC SYMBOL
INPUT
OUTPUT
nA
L
nY
L
H
H
LOGIC DIAGRAM (one driver)
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U74AHC3G17
CMOS IC
ABSOLUTE MAXIMUM RATING (unless otherwise specified)
PARAMETER
SYMBOL
VCC
VIN
RATINGS
-0.5~7.0
-0.5~7.0
0~VCC
-20
UNIT
Supply Voltage
Input Voltage
Output Voltage
V
V
VOUT
IIK
V
Input Diode Current (VI < -0.5V)
Output Diode Current (VO < -0.5V or VO > VCC + 0.5V)
Output Source or Sink Current (-0.5V < VO < VCC + 0.5V)
VCC or GND Current
mA
mA
mA
mA
mW
°C
IOK
±20
IOUT
ICC
PD
±25
±75
Power Dissipation
250
Storage Temperature
TSTG
-65 ~ +150
Note: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
RECOMMENDED OPERATING COMDITIONS
PARAMETER
SYMBOL
MIN
2.0
0
TYP
5.0
MAX
5.5
UNIT
V
Supply Voltage
Input Voltage
Output Voltage
VCC
VI
5.5
V
VO
TA
0
VCC
+125
V
Operating Temperature
-40
+25
°C
ELECTRICAL CHARACTERISTICS (TA =25°C , unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
1.9
TYP
2.0
MAX UNIT
VI =VIH or VIL,IO =-50μA,VCC = 2.0V
VI = VIH or VIL, IO = -50μA, VCC = 3.0V
VI = VIH or VIL, IO = -50μA, VCC = 4.5V
VI = VIH or VIL, IO = -4.0mA, VCC = 3.0V
VI = VIH or VIL, IO = -8.0mA, VCC = 4.5V
VI = VIH or VIL, IO = 50μA, VCC = 2.0V
VI = VIH or VIL, IO = 50μA, VCC = 3.0V
VI = VIH or VIL, IO = 50μA, VCC = 4.5V
VI = VIH or VIL, IO = 4.0mA, VCC = 3.0V
VI = VIH or VIL, IO = 8.0mA, VCC = 4.5V
2.9
3.0
High-Level Output Voltage
Low-Level Output Voltage
VOH
4.4
4.5
V
2.58
3.94
0
0
0
0.1
0.1
VOL
V
0.1
0.36
0.36
0.1
Input Leakage Current
Quiescent Supply Current
Input Capacitance
II(LEAK) VI = VCC or GND, VCC = 5.5V, IO = 0 A
μA
μA
pF
ICC
VI = VCC or GND, IO = 0 A
1.0
CIN
1.5
10
TRANSFER CHARACTERISTICS (TA =25°C , unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
CC = 3.0V
MIN
TYP
MAX UNIT
2.2
V
Positive-going Threshold
Negative-going Threshold
Hysteresis (VT+ - VT-)
VT+
VCC = 4.5V
VCC = 5.5V
3.15
3.85
V
V
V
VCC = 3.0V
0.9
1.35
1.65
0.3
VT-
VH
VCC = 4.5V
VCC = 5.5V
VCC = 3.0V
1.2
1.4
1.6
VCC = 4.5V
VCC = 5.5V
0.4
0.5
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U74AHC3G17
CMOS IC
AC CHARACTERISTICS (TA =25°C, GND = 0V, tR = tF ≤ 3.0 ns)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
4.2 12.8
V
CC = 3.0 to 3.6V, CL = 15pF
VCC = 3.0 to 3.6V, CL = 50pF
VCC = 4.5 to 5.5V, CL = 15pF
VCC = 4.5 to 5.5V, CL = 50pF
6.0 16.3
ns
Propagation Delay
from Input (nA) to Output (nY)
tPLH/tPHL
(tPD)
3.2
8.6
4.6 10.6
OPERATING CHARACTERISTICS (TA =25°C)
PARAMETER
SYMBOL
CPD
TEST CONDITIONS
TYP
10
UNIT
pF
Power Dissipation Capacitance Per Gate
Notes:
CL =15pF, f=10MHz (Note 1, 2)
1. CPD is used to determine the dynamic power dissipation (PD in μW).
PD = CPD × VCC2 × fI × N + Σ(CL × VCC2 × fO) where:
fI = input frequency in MHz;
fO = output frequency in MHz;
CL = output load capacitance in pF;
VCC = supply voltage in Volts;
N = number of inputs switching;
Σ(CL × VCC2 × fO) = sum of the outputs.
2. The condition is VI = GND to VCC
.
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U74AHC3G17
CMOS IC
WAVEFORMS
Fig.1 Transfer characteristic
VT+
VH
VT-
VI
VO
Fig.2 Definitions of VT+, VT- and VH
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U74AHC3G17
CMOS IC
TEST CIRCUIT AND WAVEFORMS
Definitions for test circuit:
CL = Load capacitance including jig and probe capacitance.
RT = Termination resistance should be equal to the output impedance ZO of the pulse generator.
Inputs
VCC
3.3V
VM
CL
VIN
tR, tF
≤3ns
≤3ns
≤3ns
≤3ns
≤3ns
≤3ns
≤3ns
≤3ns
GND to VCC
GND to VCC
GND to VCC
GND to VCC
GND to VCC
GND to VCC
GND to VCC
GND to VCC
VCC/2
VCC/2
VCC/2
VCC/2
VCC/2
VCC/2
VCC/2
VCC/2
15pF
50pF
15pF
50pF
15pF
50pF
15pF
50pF
3.0 to3.6V
5.0V
4.5 to 5.5V
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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