U74HCT125G-S14-T [UTC]
QUADRUPLE BUS BUFFER GATES WITH 3-STATE OUTPUTS; 具有三态输出翻两番总线缓冲器GATES
| 型号： | U74HCT125G-S14-T |
| 厂家： | 
Unisonic Technologies |
| 描述： | QUADRUPLE BUS BUFFER GATES WITH 3-STATE OUTPUTS |
| 文件： | 总6页 (文件大小：180K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
U74HCT125
CMOS IC
QUADRUPLE BUS BUFFER
GATES WITH 3-STATE OUTPUTS
DESCRIPTION
The U74HCT125 is a quadruple bus buffer gates with 3-state
output. When OE is high, the Y outputs are in a high-impedance
state. When OE is low, the device passes noninverted data from the
A input to the Y output.
To ensure the high-impedance state during power up or power
down, OE should be tied to VCC through a pull-up resistor; the
minimum value of the resistor is determined by the current-sinking
capability of the driver.
FEATURES
* TTL-Voltage Compatible
* Max tPD of 12 ns from A to Y at 5.5 V, CL = 50 pF
* Low power consumption, ICC = 8μA (Max) at 5.5V
* ±6mA output driver at 5V
ORDERING INFORMATION
Ordering Number
Lead Free
Package
Packing
Halogen Free
U74HCT125L-S14-T
U74HCT125L-S14-R
U74HCT125L-P14-T
U74HCT125L-P14-R
U74HCT125G-S14-T
U74HCT125G-S14-R
U74HCT125G-P14-T
U74HCT125G-P14-R
SOP-14
SOP-14
Tube
Tape Reel
Tube
TSSOP-14
TSSOP-14
Tape Reel
www.unisonic.com.tw
Copyright © 2012 Unisonic Technologies Co., Ltd
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QW-R502-700.B
U74HCT125
CMOS IC
PIN CONFIGURATION
FUNCTION TABLE (each buffer)
INPUTS
OUTPUTS
Y
OE
A
L
L
H
L
H
L
H
X
Z
LOGIC DIAGRAM (each buffer)
OE
A
Y
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U74HCT125
CMOS IC
ABSOLUTE MAXIMUM RATING (unless otherwise specified)
PARAMETER
SYMBOL
VCC
RATINGS
-0.5~7
UNIT
Supply Voltage
Input Voltage
Output Voltage
V
V
VIN
-0.5~7
VOUT
IIK
-0.5~VCC +0.5
±20
V
Input Clamp Current (VIN<0, or VIN>0)
Output Clamp Current (VOUT<0, or VOUT>VCC
Output Current
mA
mA
mA
mA
°C
)
IOK
±20
IOUT
ICC
±35
VCC or GND Current
±70
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
MIN
4.5
2
TYP
5
MAX
5.5
UNIT
V
Supply Voltage
High-Level Input Voltage (VCC =4.5V to 5.5V)
Low-Level Input Voltage (VCC = 4.5V to 5.5V)
Input Voltage
VIH
V
VIL
0.8
VCC
VCC
500
85
V
VIN
0
0
V
Output Voltage
VOUT
Δt/Δv
TA
V
Input Transition Rise or Fall Rate
Operating Temperature
ns/V
°C
-40
25
ELECTRICAL CHARACTERISTICS (TA =25°C , unless otherwise specified)
PARAMETER
SYMBOL
VOH
TEST CONDITIONS
IOH = -20μA, VCC =4.5 V
IOH = -6 mA, VCC =4.5 V
OL = 20 μA, VCC =4.5 V
IOL = 6 mA , VCC =4.5 V
MIN
4.4
TYP MAX UNIT
4.5
High-Level Output Voltage
Low-Level Output Voltage
V
3.98
4.3
I
0.001
0.17
0.1
VOL
V
0.26
Input Leakage Current
(A or OE input)
II(LEAK) VIN = 5.5V or GND, VCC =5.5 V
±0.1 ±100 μA
High-Impedance State Current
Quiescent Supply Current
IOZ
ICC
VOUT = VCC or GND, VCC =5.5 V
VIN = VCC or GND, IOUT = 0, VCC =5.5 V
One input at 0.5V or 2.4V, VCC =5.5 V,
other inputs at VCC or GND
±0.01 ±0.5
8
μA
μA
ΔICC
Additional Quiescent Supply Current
Input Capacitance
1.4
3
2.4
10
mA
pF
CIN
VCC =4.5V to 5.5 V
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U74HCT125
CMOS IC
SWITCHING CHARACTERISTICS
(CL = 50 pF, TA =25°C)
PARAMETER
Propagation Delay from Input A to
Output Y, tPD
SYMBOL
PLH/ tPHL
TEST CONDITIONS
VCC =4.5 V
MIN
TYP
MAX UNIT
15
12
18
15
15
13
8
26
23
28
25
26
23
15
14
t
ns
ns
ns
ns
VCC =5.5 V
VCC =4.5 V
VCC =5.5 V
VCC =4.5 V
VCC =5.5 V
VCC =4.5 V
VCC =5.5 V
Propagation Delay from Input OE
to Output Y, tEN
t
t
PZH/ tPZL
PHZ/ tPLZ
Propagation delay from input OE to
output Y, tDIS
Output transition (rise and fall) time,
tT
tTLH/ tTHL
7
(CL = 150 pF, TA =25°C)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
19
MAX UNIT
VCC =4.5 V
VCC =5.5 V
VCC =4.5 V
VCC =5.5 V
VCC =4.5 V
VCC =5.5 V
36
ns
32
Propagation Delay from Input A to
Output Y, tPD
t
PLH/ tPHL
tPZH/ tPZL
tTLH/ tTHL
16
25
40
ns
35
Propagation Delay from Input OE
21
to Output Y, tEN
17
42
ns
38
Output transition (rise and fall) time,
tT
14
OPERATING CHARACTERISTICS (TA =25°C)
PARAMETER
Power dissipation capacitance
SYMBOL
CPD
TEST CONDITIONS
TYP
35
UNIT
pF
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U74HCT125
CMOS IC
TEST CIRCUIT AND WAVEFORMS
TEST
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
S1
Open
VLOAD
GND
Input
VCC
VM
VLOAD
VCC
CL
RL
VΔ
VIN
tR, tF
50pF
5V±0.5V
VCC
≤3ns
VCC/2
1kΩ
0.5V
150pF
VIN
Input
VM
VM
0V
tPHL
tPLH
VOH
VOL
VOH
Output
VM
VM
tR
tF
tPHL
tPLH
VM
VM
Output
VOL
tR
tF
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U74HCT125
CMOS IC
TEST CIRCUIT AND WAVEFORMS(Cont.)
VIN
Input
VM
VM
0V
tPLZ
tPZL
VLOAD
Output
VM
S1 at VLOAD
VOL
tPZH
tPHZ
VOH
-
Output
VM
S1 at GND
0V
Voltage Waveforms Enable and Disable Times
Notes: 1. CL includes probe and jig capacitance.
2. All input pulses are supplied by generators having the following characteristics: PRR ≤1MHz, ZO = 50Ω.
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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