U74AHCT14_15 [UTC]
HEX SCHMITT-TRIGGER INVERTER;
| 型号： | U74AHCT14_15 |
| 厂家： | 
Unisonic Technologies |
| 描述： | HEX SCHMITT-TRIGGER INVERTER |
| 文件： | 总4页 (文件大小：145K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
U74AHCT14
CMOS IC
HEX SCHMITT-TRIGGER
INVERTER
DESCRIPTION
The U74AHCT14 is a high speed Si-gate CMOS device which
contains six independent Schmitt-trigger inverters and they perform
the function Y=A.
The device have different input threshold levels for positive-going
(VT+) and negative-going(VT-) signals because of the Schmitt-trigger
action in the input.
FEATURES
* All inputs have Schmitt-trigger action
* Inputs are TTL-Voltage compatible
* Balanced propagation delays
ORDERING INFORMATION
Ordering Number
Lead Free
Package
Packing
Halogen Free
U74AHCT14L-S14-R
U74AHCT14L-P14-R
U74AHCT14G-S14-R
U74AHCT14G-P14-R
SOP-14
Tape Reel
Tape Reel
TSSOP-14
www.unisonic.com.tw
Copyright © 2012 Unisonic Technologies Co., Ltd
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QW-R502-799.A
U74AHCT14
CMOS IC
PIN CONFIGURATION
FUNCTION TABLE (each gate)
INPUT
OUTPUT
A
L
Y
H
L
H
LOGIC DIAGRAM (positive logic)
IEC logic symbol
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U74AHCT14
CMOS IC
ABSOLUTE MAXIMUM RATING (TA=25°C, unless otherwise specified)(Note 1)
PARAMETER
SYMBOL
VCC
RATINGS
-0.5~7
-0.5~7
-0.5~VCC+0.5
-20
UNIT
V
Supply Voltage
Input Voltage
VIN
V
Output Voltage(active mode)
Input Clamp Current(VIN<0)
Output Clamp Current(VOUT<0)
Output Current
VOUT
IIK
V
mA
mA
mA
mA
°C
IOK
±20
IOUT
ICC
±25
VCC or GND Current
±50
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
VCC
CONDITIONS
MIN
4.5
0
TYP
MAX UNIT
Supply Voltage
Operating
5.5
5.5
V
V
Input Voltage
VIN
Output Voltage
VOUT
TA
0
VCC
+85
V
Operating Temperature
-40
°C
STATIC CHARACTERISTICS (TA=25°C, unless otherwise specified)
PARAMETER
SYMBOL
VT+
TEST CONDITIONS
VCC =4.5V
MIN
0.9
1
TYP
MAX UNIT
1.9
V
Positive-Going Input Threshold
Voltage
VCC =5.5V
2.1
VCC =4.5V
0.5
0.6
0.4
0.4
4.4
3.94
1.5
V
Negative-Going Input Threshold
Voltage
VT-
△VT
VOH
VOL
VCC =5.5V
1.7
VCC =4.5V
1.4
V
Hysteresis Voltage (VT+-VT-)
High-Level Output Voltage
Low-Level Output Voltage
VCC =5.5V
1.5
VCC =4.5V, IOH=-50μA
VCC =4.5V, IOH=-8mA
VCC =4.5V, IOL=50μA
VCC =4.5V, IOL=8mA
V
0.1
V
0.36
Input Leakage Current
Quiescent Supply Current
Additional Quiescent Supply
Current
II(LEAK) VCC =0V ~ 5.5V, VIN=VCC or GND
±0.1
2
μA
μA
ICC
ΔICC
CIN
VCC = 5.5V, VIN=5.5V or GND, IOUT=0
CC = 5.5V, One input at 3.4V, other
inputs at VCC or GND
0.1
2
V
1.35
10
mA
pF
Input Capacitance
VCC =3.3V, VIN=VCC or GND
DYNAMIC CHARACTERISTICS (Input: tR, tF≤3ns; PRR≤1MHz)
See Fig. 1 and Fig. 2 for test circuit and waveforms.
PARAMETER
Propagation delay from input
(A or B) to output(Y)
SYMBOL
PLH/tPHL
TEST CONDITIONS
VCC=5V±0.5V, CL =15pF
VCC=5V±0.5V, CL =50pF
MIN
MIN
TYP
4
MAX UNIT
7
t
ns
8
5.5
OPERATING CHARACTERISTICS
PARAMETER
Power Dissipation Capacitance
SYMBOL
Cpd
TEST CONDITIONS
TYP
12
MAX UNIT
pF
No load, f=1MHz, VCC=5V
UNISONIC TECHNOLOGIES CO., LTD
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U74AHCT14
CMOS IC
TEST CIRCUIT AND WAVEFORMS
Fig. 1 Load circuitry for switching times.
Note: CL includes probe and jig capacitance.
Fig. 2 Propagation delay from input(A) to output(Y) and Output transition time.
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.
UNISONIC TECHNOLOGIES CO., LTD
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