MC74HCXXXADT [MOTOROLA]
Quad 3-State Noninverting Buffers; 四路三态同相缓冲器
| 型号： | MC74HCXXXADT |
| 厂家： | 
MOTOROLA |
| 描述： | Quad 3-State Noninverting Buffers |
| 文件： | 总6页 (文件大小：148K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SEMICONDUCTOR TECHNICAL DATA
High–Performance Silicon–Gate CMOS
The MC74HC125A and MC74HC126A are identical in pinout to the LS125
and LS126. The device inputs are compatible with standard CMOS outputs;
with pullup resistors, they are compatible with LSTTL outputs.
The HC125A and HC126A noninverting buffers are designed to be used
with 3–state memory address drivers, clock drivers, and other bus–oriented
systems. The devices have four separate output enables that are active–low
(HC125A) or active–high (HC126A).
N SUFFIX
14–LEAD PLASTIC DIP PACKAGE
CASE 646–06
•
•
•
•
•
•
Output Drive Capability: 15 LSTTL Loads
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 2.0 to 6.0 V
Low Input Current: 1.0 µA
High Noise Immunity Characteristic of CMOS Devices
In Compliance with the Requirements Defined by JEDEC Standard
No. 7A
D SUFFIX
14–LEAD PLASTIC SOIC PACKAGE
CASE 751A–03
•
Chip Complexity: 72 FETs or 18 Equivalent Gates
LOGIC DIAGRAM
DT SUFFIX
14–LEAD PLASTIC TSSOP PACKAGE
CASE 948G–01
HC125A
Active–Low Output Enables
HC126A
Active–High Output Enables
2
1
5
4
3
2
1
5
4
3
ORDERING INFORMATION
A1
A1
Y1
Y1
MC74HCXXXAN
MC74HCXXXAD
Plastic
SOIC
OE1
OE1
MC74HCXXXADT TSSOP
6
6
Y2
Y3
A2
Y2
Y3
A2
PIN ASSIGNMENT
OE2
OE2
OE1
A1
1
2
14
13
V
CC
9
10
12
13
8
9
10
12
13
8
OE4
A3
A3
Y1
3
4
12
11
A4
Y4
OE3
OE3
OE2
A2
Y2
5
6
10
9
OE3
A3
11
11
Y4
A4
Y4
A4
GND
7
8
Y3
OE4
OE4
PIN 14 = V
CC
PIN 7 = GND
FUNCTION TABLE
HC125A
HC126A
Inputs Output
Inputs Output
A
OE
Y
A
OE
Y
H
L
X
L
L
H
H
L
Z
H
L
X
H
H
L
H
L
Z
4/97
Motorola, Inc. 1997
REV 8
MC74HC125A MC74HC126A
MAXIMUM RATINGS*
Symbol
Parameter
DC Supply Voltage (Referenced to GND)
DC Input Voltage (Referenced to GND)
DC Output Voltage (Referenced to GND)
DC Input Current, per Pin
Value
Unit
V
This device contains protection
circuitry to guard against damage
due to high static voltages or electric
fields. However, precautions must
be taken to avoid applications of any
voltage higher than maximum rated
voltages to this high–impedance cir-
V
V
– 0.5 to + 7.0
CC
V
– 0.5 to V
+ 0.5
V
in
out
CC
– 0.5 to V
+ 0.5
V
CC
I
in
± 20
mA
mA
mA
mW
I
DC Output Current, per Pin
± 35
± 75
out
cuit. For proper operation, V and
in
V
should be constrained to the
out
I
DC Supply Current, V
and GND Pins
CC
CC
range GND (V or V
)
V
.
in out
CC
P
D
Power Dissipation in Still Air
Plastic DIP†
SOIC Package†
TSSOP Package†
750
500
450
Unused inputs must always be
tied to an appropriate logic voltage
level (e.g., either GND or V ).
CC
Unused outputs must be left open.
T
stg
Storage Temperature
– 65 to + 150
C
C
T
L
Lead Temperature, 1 mm from Case for 10 Seconds
(Plastic DIP, SOIC or TSSOP Package)
260
* Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the Recommended Operating Conditions.
†Derating — Plastic DIP: – 10 mW/ C from 65 to 125 C
SOIC Package: – 7 mW/ C from 65 to 125 C
TSSOP Package: – 6.1 mW/ C from 65 to 125 C
For high frequency or heavy load considerations, see Chapter 2 of the Motorola High–Speed CMOS Data Book (DL129/D).
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Min
2.0
0
Max
Unit
V
V
DC Supply Voltage (Referenced to GND)
6.0
CC
V , V
DC Input Voltage, Output Voltage
(Referenced to GND)
V
CC
V
in out
T
A
Operating Temperature, All Package Types
– 55 + 125
C
t , t
r f
Input Rise and Fall Time
(Figure 1)
V
CC
V
CC
V
CC
= 2.0 V
= 4.5 V
= 6.0 V
0
0
0
1000
500
400
ns
DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND)
Guaranteed Limit
– 55 to
V
CC
V
25 C
Symbol
Parameter
Test Conditions
= V – 0.1 V
85 C
125 C
Unit
V
IH
Minimum High–Level Input
Voltage
V
2.0
3.0
4.5
6.0
1.5
2.1
3.15
4.2
1.5
2.1
3.15
4.2
1.5
2.1
3.15
4.2
V
out
CC
20 µA
|I
|
out
V
Maximum Low–Level Input
Voltage
V
= 0.1 V
2.0
3.0
4.5
6.0
0.5
0.9
1.35
1.8
0.5
0.9
1.35
1.8
0.5
0.9
1.35
1.8
V
V
IL
out
|I
|
20 µA
out
V
OH
Minimum High–Level Output
Voltage
V
= V
2.0
4.5
6.0
1.9
4.4
5.9
1.9
4.4
5.9
1.9
4.4
5.9
in
IH
20 µA
|I
|
out
V
in
= V
|I
out
|I
out
|I
out
|
|
|
3.6 mA
6.0 mA
7.8 mA
3.0
4.5
6.0
2.48
3.98
5.48
2.34
3.84
5.34
2.2
3.7
5.2
IH
V
OL
Maximum Low–Level Output
Voltage
V
= V
|
2.0
4.5
6.0
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
V
in
IL
20 µA
|I
out
V
in
= V
|I
out
|I
out
|I
out
|
|
|
3.6 mA
6.0 mA
7.8 mA
3.0
4.5
6.0
0.26
0.26
0.26
0.33
0.33
0.33
0.4
0.4
0.4
IL
MOTOROLA
2
MC74HC125A MC74HC126A
DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND)
Guaranteed Limit
– 55 to
V
CC
V
25 C
± 0.1
± 0.5
Symbol
Parameter
Test Conditions
= V or GND
CC
85 C
125 C
± 1.0
Unit
µA
I
in
Maximum Input Leakage Current
V
6.0
6.0
± 1.0
in
Output in High–Impedance State
= V or V
I
Maximum Three–State Leakage
Current
± 5.0
± 10
µA
OZ
V
V
in
IL
= V
IH
or GND
out
CC
or GND
I
Maximum Quiescent Supply
Current (per Package)
V
= V
6.0
4.0
40
160
µA
CC
in
CC
= 0 µA
I
out
NOTE: Information on typical parametric values can be found in Chapter 2 of the Motorola High–Speed CMOS Data Book (DL129/D).
AC ELECTRICAL CHARACTERISTICS (C = 50 pF, Input t = t = 6.0 ns)
L
r
f
Guaranteed Limit
– 55 to
V
CC
V
25 C
Symbol
Parameter
Unit
85 C
125 C
t
t
,
Maximum Propagation Delay, Input A to Output Y
(Figures 1 and 3)
2.0
3.0
4.5
6.0
90
36
18
15
115
45
23
135
60
27
ns
PLH
PHL
20
23
t
t
,
Maximum Propagation Delay, Output Enable to Y
(Figures 2 and 4)
2.0
3.0
4.5
6.0
120
45
24
150
60
30
180
80
36
ns
ns
ns
PLZ
PHZ
20
26
31
t
t
,
Maximum Propagation Delay, Output Enable to Y
(Figures 2 and 4)
2.0
3.0
4.5
6.0
90
36
18
15
115
45
23
135
60
27
PZL
PZH
20
23
t
t
,
Maximum Output Transition Time, Any Output
(Figures 1 and 3)
2.0
3.0
4.5
6.0
60
22
12
10
75
28
15
13
90
34
18
15
TLH
THL
C
Maximum Input Capacitance
—
—
10
15
10
15
10
15
pF
pF
in
C
Maximum Three–State Output Capacitance
(Output in High–Impedance State)
out
NOTE: For propagation delays with loads other than 50 pF, and information on typical parametric values, see Chapter 2 of the Motorola High–
Speed CMOS Data Book (DL129/D).
Typical @ 25°C, V
= 5.0 V
CC
C
Power Dissipation Capacitance (Per Buffer)*
pF
30
PD
2
* Used to determine the no–load dynamic power consumption: P = C
D
Motorola High–Speed CMOS Data Book (DL129/D).
V
f + I
V
. For load considerations, see Chapter 2 of the
PD CC
CC CC
3
MOTOROLA
MC74HC125A MC74HC126A
SWITCHING WAVEFORMS
V
CC
OE (HC125A)
50%
50%
t
t
f
r
GND
V
CC
90%
V
CC
INPUT A
50%
OE (HC126A)
10%
GND
GND
t
PHL
t
PLH
t
t
PZL PLZ
90%
OUTPUT Y
HIGH
50%
10%
IMPEDANCE
50%
OUTPUT Y
OUTPUT Y
10%
90%
V
OL
t
t
THL
TLH
t
t
PZH PHZ
V
OH
50%
HIGH
IMPEDANCE
Figure 1.
Figure 2.
TEST POINT
1 k
TEST POINT
CONNECT TO V
WHEN
CC
AND t
Ω
TESTING t
OUTPUT
OUTPUT
PLZ
CONNECT TO GND WHEN
TESTING t and t
PZL.
DEVICE
UNDER
TEST
DEVICE
UNDER
TEST
PHZ
PZH.
C
*
L
C *
L
* Includes all probe and jig capacitance
* Includes all probe and jig capacitance
Figure 3. Test Circuit
Figure 4. Test Circuit
V
CC
OE
A
Y
HC125A
(1/4 OF THE DEVICE)
V
CC
OE
A
Y
HC126A
(1/4 OF THE DEVICE)
MOTOROLA
4
MC74HC125A MC74HC126A
OUTLINE DIMENSIONS
D SUFFIX
PLASTIC SOIC PACKAGE
CASE 751A–03
NOTES:
ISSUE F
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
–A–
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
PER SIDE.
5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 (0.005) TOTAL
IN EXCESS OF THE D DIMENSION AT
MAXIMUM MATERIAL CONDITION.
14
1
8
7
P 7 PL
–B–
M
M
0.25 (0.010)
B
MILLIMETERS
INCHES
G
F
R X 45°
DIM
A
B
C
D
F
G
J
MIN
8.55
3.80
1.35
0.35
0.40
MAX
8.75
4.00
1.75
0.49
1.25
MIN
MAX
0.344
0.157
0.068
0.019
0.049
C
0.337
0.150
0.054
0.014
0.016
J
M
SEATING
PLANE
K
D 14 PL
1.27 BSC
0.050 BSC
0.19
0.10
0.25
0.25
0.008
0.004
0.009
0.009
M
S
S
0.25 (0.010)
T
B
A
K
M
P
R
0
5.80
0.25
°
7
6.20
0.50
°
0
°
7°
0.244
0.019
0.228
0.010
N SUFFIX
PLASTIC DIP PACKAGE
CASE 646–06
NOTES:
1. LEADS WITHIN 0.13 (0.005) RADIUS OF TRUE
POSITION AT SEATING PLANE AT MAXIMUM
MATERIAL CONDITION.
ISSUE L
14
1
8
7
2. DIMENSION L TO CENTER OF LEADS WHEN
FORMED PARALLEL.
3. DIMENSION B DOES NOT INCLUDE MOLD
FLASH.
4. ROUNDED CORNERS OPTIONAL.
B
INCHES
MILLIMETERS
A
F
DIM
A
B
C
D
F
G
H
J
K
L
M
N
MIN
MAX
0.770
0.260
0.185
0.021
0.070
MIN
18.16
6.10
3.69
0.38
1.02
MAX
19.56
6.60
4.69
0.53
1.78
0.715
0.240
0.145
0.015
0.040
L
C
0.100 BSC
2.54 BSC
0.052
0.008
0.115
0.095
0.015
0.135
1.32
0.20
2.92
2.41
0.38
3.43
J
N
0.300 BSC
7.62 BSC
SEATING
PLANE
K
0
10
0
10
0.015
0.039
0.39
1.01
H
G
D
M
5
MOTOROLA
MC74HC125A MC74HC126A
OUTLINE DIMENSIONS
DT SUFFIX
PLASTIC TSSOP PACKAGE
CASE 948G–01
ISSUE O
NOTES:
14X K REF
0.10 (0.004)
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
M
S
S
T
U
V
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSION A DOES NOT INCLUDE MOLD FLASH,
PROTRUSIONS OR GATE BURRS. MOLD FLASH
OR GATE BURRS SHALL NOT EXCEED 0.15
(0.006) PER SIDE.
4. DIMENSION B DOES NOT INCLUDE INTERLEAD
FLASH OR PROTRUSION. INTERLEAD FLASH OR
PROTRUSION SHALL NOT EXCEED
0.25 (0.010) PER SIDE.
5. DIMENSION K DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN
EXCESS OF THE K DIMENSION AT MAXIMUM
MATERIAL CONDITION.
S
0.15 (0.006) T
U
N
0.25 (0.010)
14
8
7
2X L/2
M
B
L
N
–U–
PIN 1
IDENT.
F
1
6. TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
DETAIL E
7. DIMENSION A AND B ARE TO BE DETERMINED
AT DATUM PLANE –W–.
S
K
0.15 (0.006) T
U
A
MILLIMETERS
INCHES
K1
DIM
A
B
C
D
F
G
H
J
J1
K
MIN
4.90
4.30
–––
0.05
0.50
MAX
5.10
4.50
1.20
0.15
0.75
MIN
MAX
0.200
0.177
0.047
0.006
0.030
–V–
0.193
0.169
–––
0.002
0.020
J J1
SECTION N–N
0.65 BSC
0.026 BSC
0.50
0.09
0.09
0.19
0.19
0.60
0.20
0.16
0.30
0.25
0.020
0.004
0.004
0.007
0.007
0.024
0.008
0.006
0.012
0.010
–W–
C
K1
L
6.40 BSC
0.252 BSC
0.10 (0.004)
M
0
8
0
8
SEATING
PLANE
–T–
H
G
DETAIL E
D
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specificallydisclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola
datasheetsand/orspecificationscananddovaryindifferentapplicationsandactualperformancemayvaryovertime. Alloperatingparameters,including“Typicals”
must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of
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arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that
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MC74HC125A/D
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