How it Works
Diodes
Loading...
74AHC125
User Manual
9 pgs316.63 Kb0

Diodes 74AHC125 User Manual

Download
Page 1
QUADRUPLE 3-STATE BUFFERS OE LOW
Description
The 74AHC125 provides provides four independent buffer gates with
3-state outputs. Each buffer has a separate enable pin that when
driven with a high logic level places the corresponding output in the
high impedance state. The device is designed for operation with a
power supply range of 2.0V to 5.5V. The inputs are tolerant to 5.5V
allowing this device to be used in a mixed voltage environment.
Pin Assignments
Features
• Wide Supply Voltage Range from 2.0V to 5.5V
• Outputs Sink or Source 8mA at V
• CMOS Low Power Consumption
• Schmitt Trigger Action at All Inputs
• Inputs can be driven by 3.3 V or 5.5V allowing for voltage
NEW PRODUCT
translation applications.
• ESD Protection Exceeds JESD 22
200-V Machine Model (A115-A)
2000-V Human Body Model (A114-A)
Exceeds 1000-V Charged Device Model (C101C)
• Latch-Up Exceeds 250mA per JESD 78, Class II
• Range of Package Options SO-14 and TSSOP-14
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds.
= 4.5V
CC
Applications
• General Purpose Logic
• Wide array of products such as:
PCs, Networking, Notebooks, Netbooks
Computer Peripherals, Hard Drives, CD/DVD ROM
TV, DVD, DVR, Set Top Box
Click here for ordering information, located at the end of datasheet
74AHC125
Document number: DS35345 Rev. 3 - 2
1 of 9
www.diodes.com
January 2013
© Diodes Incorporated
Page 2
Pin Descriptions
Pin
Pin Name Function
1 1OE Data Enable Input (active low)
2 1A Data Input
3 1Y Data Output
4 2OE Data Enable Input (active low)
5 2A Data Input
6 2Y Data Output
7 GND Ground
8 3Y Data Output
9 3A Data Input
10 3OE Data Enable Input (active low)
11 4Y Data Output
12 4A Data Input
13 4OE Data Enable Input (active low)
14
V
CC
Supply Voltage
NEW PRODUCT
Number
Function Table
Inputs Output
OE
L H H
L L L
H X Z
A Y
Absolute Maximum Ratings (Note 4) (@T
Symbol Description Rating Unit
ESD HBM Human Body Model ESD Protection 2 KV
ESD CDM Charged Device Model ESD Protection 1 KV
ESD MM Machine Model ESD Protection 200 V
VCC
VI
IIK Input Clamp Current V
IOK Output Clamp Current VO < -0.5V
IOK Output Clamp Current VO > VCC + 0.5V
IO Continuous Output Current -0.5V < V
ICC Continuous Current Through VCC
I
GND
TJ
T
STG
P
TOT
Note: 4. Stresses beyond the absolute maximum may result in immediate failure or reduced reliability. These are stress values and device operation should be within recommend values.
Supply Voltage Range -0.5 to +7.0 V
Input Voltage Range -0.5 to +7.0 V
Continuous Current Through GND -75 mA
Operating Junction Temperature -40 to +150 °C
Storage Temperature -65 to +150 °C
Total Power Dissipation 500 mW
74AHC125
Document number: DS35345 Rev. 3 - 2
< -0.5V
I
Logic Diagram
= +25°C, unless otherwise specified.)
A
+0.5V
O VCC
2 of 9
www.diodes.com
-20 mA
-20 mA
25 mA
+/- 25 mA
75 mA
January 2013
© Diodes Incorporated
Page 3
Recommended Operating Conditions (Note 5) (@T
Symbol Parameter Conditions Min Max Unit
VCC
VI
VO
Δt/ΔV Input Transition Rise or Fall Rate
TA
Note: 5. Unused inputs should be held at VCC or Ground.
Operating Free-Air Temperature -40 +125 °C
Electrical Characteristics (@T
NEW PRODUCT
Symbol Parameter Test Conditions
VIH
VIL
VOH
VOL
High-Level Input Voltage
Low-Level Input Voltage
High-Level Output Voltage
Low-Level Output Voltage
Supply Voltage 2.0 5.5 V
Input Voltage 0 5.5 V
Output Voltage 0
V
CC
VCC = 4.5V to 5.5V
= +25°C, unless otherwise specified.)
A
2.0V 1.5 1.5
3.0V 2.1 2.1
5.5V 3.85 3.85
2.0V 0.5 0.5
3.0V 0.9 0.9
5.5V 1.65 1.65
= -50μA
I
OH
IOH = -50μA
IOH = -50μA
IOH = -4mA
IOH = -8mA
= 50μA
I
OL
IOL = 50μA
IOL = 50μA
IOL = 4mA
IOL = 8mA
= 3.0V to 3.6V
= +25°C, unless otherwise specified.)
A
VCC
100
20
= -40°C to +85°C TA = -40°C to +125°C
T
V
CC
2.0V 1.9 1.9
3.0V 2.9 2.9
4.5V 4.4 4.4
3.0V 2.48 2.40
4.5V 3.80 3.70
2.0V 0.1 0.1
3.0V 0.1 0.1
4.5V 0.1 0.1
3.0V 0.44 0.55
4.5V 0.44 0.55
A
Min Max Min Max
V
ns/V
Unit
V
V
V
V
IOZ
II
ICC
Z State
Leakage Current
Input Current
Supply Current
74AHC125
Document number: DS35345 Rev. 3 - 2
V
= 0 to 5.5V
O
= GND or 5.5V
V
I
VI = GND to 5.5V
VI = GND or VCC, IO = 0
www.diodes.com
5.5V ±2.5 ±10 μA
3.6V ±1 ±2 μA
3.6V 20 40 μA
3 of 9
January 2013
© Diodes Incorporated
Page 4
Operating Characteristics
Parameter
Cpd
Ci
Power Dissipation
Capacitance per Gate
Input Capacitance
Switching Characteristics
Symbol Parameter
Propagation
Delay A
to YN
N
Enable Time
to YN
OE
N
Disable Time
to YN
OE
N
NEW PRODUCT
tPD
tEN
t
DIS
74AHC125
Document number: DS35345 Rev. 3 - 2
Conditions
Vi = V
Test
Conditions
Figure 1
= 15pF
C
L
Figure 1
C
= 50pF
L
Figure 1
= 15pF
C
L
Figure 1
= 50pF
C
L
Figure 1
= 15pF
C
L
Figure 1
C
= 50pF
L
= 2.0V VCC = 3.3V VCC = 5V
Test
V
CC
Typ Typ Typ
Unit
f = 1MHz 10.1 13.1 15 pF
– or GND
CC
V
CC
3.0V to 3.6V 0.5
4.5V to 5.5V 0.5
3.0V to 3.6V 0.5
4.5V to 5.5 V 0.5
3.0V to 3.6V 0.5
4.5V to 5.5V 0.5
3.0V to 3.6V 0.5
4.5V to 5.5V 0.5
3.0V to 3.6V 0.5
4.5V to 5.5V 0.5
3.0 V to 3.6V 0.5
4.5V to 5.5V 0.5
4.0 4.0 4.0 pF
= +25°C
T
A
Min Typ Max Min Max Min Max
4.4
3.0
6.2
4.3
4.7
3.3
6.8
4.7
6.7
4.8
9.6
6.8
8.0 0.5
5.5 0.5
11.5 0.5
7.5 0.5
8.0 0.5
5.1 0.5
11.5 0.5
7.1 0.5
9.7 0.5
6.8 0.5
13.2 0.5
8.8 0.5
-40°C to +85°C -40°C to +125°C
9.5 0.5 11.5
6.5 0.5 7.0
13.0 0.5 14.5
8.5 0.5 9.5
9.5 0.5 11.5
6.0 0.5 7.5
13.0 0.5 14.5
8.0 0.5 9.0
11.5 0.5 12.5
8.0 0.5 8.5
15.0 0.5 16.5
10.0 0.5 11.0
4 of 9
www.diodes.com
Unit
ns
ns
ns
January 2013
© Diodes Incorporated
Page 5
Parameter Measurement Information
TEST S1
t
PLH/tPHL
t
PLZ/tPZL
t
PHZ/tPZH
Open
Vload
GND
NEW PRODUCT
VCC
3.3V±0.3V 3 V ≤3ns
5V±0.5V
VI t
V
CC
Voltage Waveform Pulse Duration
Inputs
r/tf
≤3ns
VM V
V
/2 VCC
CC
VCC/2 VCC
C
LOAD
R
L
15,50 pF 1KΩ 0.3 V
15,50 pF 1KΩ 0.3 V
L
V∆
Voltage Waveform Enable and Disable Times
Low and High Level Enabling
Voltage Waveform Propagation Delay Times
Notes: A. Includes test lead and test apparatus capacitance.
Inverting and Non Inverting Outputs
Figure 1. Load Circuit and Voltage Waveforms
B. All pulses are supplied at pulse repetition rate ≤ 1 MHz. C. Inputs are measured separately one transition per measurement.
D. t E. t F. t
PLZ
PZL
PLH
and t and t and t
are the same as t
PHZ
are the same as t
PZH
are the same as t
PHL
dis.
EN0
PD.
74AHC125
Document number: DS35345 Rev. 3 - 2
5 of 9
www.diodes.com
January 2013
© Diodes Incorporated
Page 6
Ordering Information
Device Package Code Packaging
74AHC125S14-13 S14 SO-14 2500/Tape & Reel -13
74AHC125T14-13 T14 TSSOP-14 2500/Tape & Reel -13
NEW PRODUCT
Marking Information
(1) SO-14, TSSOP-14
74AHC125
Document number: DS35345 Rev. 3 - 2
7” Tape and Reel
Quantity Part Number Suffix
Part Number Package
74AHC125S14 SO-14
74AHC125T14 TSSOP-14
6 of 9
www.diodes.com
January 2013
© Diodes Incorporated
Page 7
Package Outline Dimensions (All dimensions in mm.)
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version.
Package Type: SO-14
H
E
Gauge Plane
L
Detail “A”
7
°
(
4
D
x
)
A2
A
NEW PRODUCT
B
e
A1
Detail “A”
Package Type: TSSOP-14
74AHC125
Document number: DS35345 Rev. 3 - 2
Pin# 1 Indent
B
L
G
K
A
a
1
D
C
F
Detail ‘A’
F1
2
a
Detail ‘A’
7 of 9
www.diodes.com
θ
5 2
.
0
Gauge Plane Seating Plane
SO-14
Dim Min Max
A 1.47 1.73 A1 0.10 0.25 A2 1.45 Typ
B 0.33 0.51
D 8.53 8.74
E 3.80 3.99
e 1.27 Typ
H 5.80 6.20
L 0.38 1.27
0° 8°
θ
All Dimensions in mm
TSSOP-14
Dim Min Max
a1 7° (4X) a2
0°
8°
A 4.9 5.10 B 4.30 4.50 C
⎯
1.2
D 0.8 1.05 F 1.00 Typ
F1 0.45 0.75
G 0.65 Typ K 0.19 0.30 L 6.40 Typ
All Dimensions in mm
January 2013
© Diodes Incorporated
Page 8
Suggested Pad Layout
Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version.
Package Type: SO-14
NEW PRODUCT
X
C1
C2
Y
Package Type: TSSOP-14
X
C2
Y
74AHC125
Document number: DS35345 Rev. 3 - 2
C1
8 of 9
www.diodes.com
Dimensions Value (in mm)
X 0.60
Y 1.50 C1 5.4 C2 1.27
Dimensions Value (in mm)
X 0.45
Y 1.45 C1 5.9 C2 0.65
January 2013
© Diodes Incorporated
Page 9
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel. Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks.
NEW PRODUCT
This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the final and determinative format released by Diodes Incorporated.
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2013, Diodes Incorporated
www.diodes.com
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
IMPORTANT NOTICE
LIFE SUPPORT
74AHC125
Document number: DS35345 Rev. 3 - 2
9 of 9
www.diodes.com
January 2013
© Diodes Incorporated
Loading...
Buy Points How it Works FAQ Contact Us Questions and Suggestions Privacy Policy Cookie Policy Terms of Use