MOTOROLA MC74HC540

SEMICONDUCTOR TECHNICAL DATA
High–Performance Silicon–Gate CMOS
The MC74HC540A is identical in pinout to the LS540. The device inputs
are compatible with Standard CMOS outputs. External pullup resistors make
them compatible with LSTTL outputs.
The HC540A is an octal inverting buffer/line driver/line receiver designed
to be used with 3–state memory address drivers, clock drivers, and other
bus–oriented systems. This device features inputs and outputs on opposite
sides of the package and two ANDed active–low output enables.
The HC540A is similar in function to the HC541A, which has non–inverting
outputs.
• Output Drive Capability: 15 LSTTL Loads
• Outputs Directly Interface to CMOS, NMOS and TTL
• Operating Voltage Range: 2 to 6V
• Low Input Current: 1µA
• High Noise Immunity Characteristic of CMOS Devices
• In Compliance With the JEDEC Standard No. 7A Requirements
• Chip Complexity: 124 FETs or 31 Equivalent Gates
N SUFFIX
PLASTIC PACKAGE
CASE 738–03
20
1
DW SUFFIX
SOIC PACKAGE
CASE 751D–04
20
1
ORDERING INFORMATION
MC74HCXXXAN
MC74HCXXXADW
Plastic
SOIC
FUNCTION TABLE
LOGIC DIAGRAM
Inputs
Output Y
A1
A2
A3
A4
Data
Inputs
A5
A6
A7
A8
Output
Enables
OE1
OE2
2
18
3
17
4
16
5
15
6
14
7
13
8
12
9
11
Y1
Y2
Y3
Y4
Inverting
Outputs
Y5
Y6
Y7
Y8
PIN 20 = VCC
PIN 10 = GND
Pinout: 20–Lead Packages (Top View)
VCC
OE2
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
OE1
A1
A2
A3
A4
A5
A6
A7
A8
GND
10/95
 Motorola, Inc. 1995
OE2
A
L
L
H
X
L
L
X
H
L
H
X
X
Z = High Impedance
X = Don’t Care
1
19
OE1
3–1
REV 6
H
L
Z
Z
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ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎ
ÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎ
ÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
MC74HC540A
MAXIMUM RATINGS*
Symbol
VCC
Parameter
DC Supply Voltage (Referenced to GND)
Value
Unit
– 0.5 to + 7.0
V
V
Vin
DC Input Voltage (Referenced to GND)
– 0.5 to VCC + 0.5
Vout
DC Output Voltage (Referenced to GND)
– 0.5 to VCC + 0.5
V
DC Input Current, per Pin
± 20
mA
Iout
DC Output Current, per Pin
± 35
mA
ICC
DC Supply Current, VCC and GND Pins
± 75
mA
PD
Power Dissipation in Still Air
750
500
mW
Tstg
Storage Temperature Range
– 65 to + 150
_C
Iin
TL
Plastic DIP†
SOIC Package†
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 circuit. For proper operation, Vin and
Vout should be constrained to the
range GND (Vin or Vout) VCC.
Unused inputs must always be
tied to an appropriate logic voltage
level (e.g., either GND or VCC).
Unused outputs must be left open.
v
v
_C
Lead Temperature, 1 mm from Case for 10 Seconds
Plastic DIP or SOIC 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
For high frequency or heavy load considerations, see Chapter 2 of the Motorola High–Speed CMOS Data Book (DL129/D).
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
RECOMMENDED OPERATING CONDITIONS
Symbol
VCC
Vin, Vout
Parameter
Min
Max
Unit
2.0
6.0
V
0
VCC
V
– 55
+ 125
_C
0
0
0
1000
500
400
ns
DC Supply Voltage (Referenced to GND)
DC Input Voltage, Output Voltage (Referenced to GND)
TA
Operating Temperature Range, All Package Types
tr, tf
Input Rise/Fall Time
(Figure 1)
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
DC CHARACTERISTICS (Voltages Referenced to GND)
Symbol
Parameter
Condition
Guaranteed Limit
VCC
V
–55 to 25°C
≤85°C
≤125°C
Unit
VIH
Minimum High–Level Input Voltage
Vout = 0.1V
|Iout| ≤ 20µA
2.0
3.0
4.5
6.0
1.50
2.10
3.15
4.20
1.50
2.10
3.15
4.20
1.50
2.10
3.15
4.20
V
VIL
Maximum Low–Level Input Voltage
Vout = VCC – 0.1V
|Iout| ≤ 20µA
2.0
3.0
4.5
6.0
0.50
0.90
1.35
1.80
0.50
0.90
1.35
1.80
0.50
0.90
1.35
1.80
V
Minimum High–Level Output
Voltage
Vin = VIL
|Iout| ≤ 20µA
2.0
4.5
6.0
1.9
4.4
5.9
1.9
4.4
5.9
1.9
4.4
5.9
V
3.0
4.5
6.0
2.48
3.98
5.48
2.34
3.84
5.34
2.20
3.70
5.20
2.0
4.5
6.0
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
3.0
4.5
6.0
0.26
0.26
0.26
0.33
0.33
0.33
0.40
0.40
0.40
6.0
±0.1
±1.0
±1.0
VOH
|Iout| ≤ 3.6mA
|Iout| ≤ 6.0mA
|Iout| ≤ 7.8mA
Vin = VIL
VOL
Maximum Low–Level Output
Voltage
Vin = VIH
|Iout| ≤ 20µA
|Iout| ≤ 3.6mA
|Iout| ≤ 6.0mA
|Iout| ≤ 7.8mA
Vin = VIH
Iin
MOTOROLA
Maximum Input Leakage Current
Vin = VCC or GND
3–2
V
µA
High–Speed CMOS Logic Data
DL129 — Rev 6
MC74HC540A
DC CHARACTERISTICS (Voltages Referenced to GND)
Parameter
Symbol
Condition
Guaranteed Limit
VCC
V
–55 to 25°C
≤85°C
≤125°C
Unit
IOZ
Maximum Three–State Leakage
Current
Output in High Impedance State
Vin = VIL or VIH
Vout = VCC or GND
6.0
±0.5
±5.0
±10.0
µA
ICC
Maximum Quiescent Supply
Current (per Package)
Vin = VCC or GND
Iout = 0µA
6.0
4
40
160
µA
NOTE: Information on typical parametric values can be found in Chapter 2 of the Motorola High–Speed CMOS Data Book (DL129/D).
AC CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6 ns)
Symbol
Parameter
Guaranteed Limit
VCC
V
–55 to 25°C
≤85°C
≤125°C
Unit
tPLH,
tPHL
Maximum Propagation Delay, Input A to Output Y
(Figures 1 and 3)
2.0
3.0
4.5
6.0
80
30
18
15
100
40
23
20
120
55
28
25
ns
tPLZ,
tPHZ
Maximum Propagation Delay, Output Enable to Output Y
(Figures 2 and 4)
2.0
3.0
4.5
6.0
110
45
25
21
140
60
31
26
165
75
38
31
ns
tPZL,
tPZH
Maximum Propagation Delay, Output Enable to Output Y
(Figures 2 and 4)
2.0
3.0
4.5
6.0
110
45
25
21
140
60
31
26
165
75
38
31
ns
tTLH,
tTHL
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
ns
Maximum Input Capacitance
10
10
10
pF
Maximum Three–State Output Capacitance (Output in High
Impedance State)
15
15
15
pF
Cin
Cout
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, VCC = 5.0 V, VEE = 0 V
CPD
Power Dissipation Capacitance (Per Buffer)*
pF
35
* Used to determine the no–load dynamic power consumption: PD = CPD VCC 2 f + ICC VCC . For load considerations, see Chapter 2 of the
Motorola High–Speed CMOS Data Book (DL129/D).
SWITCHING WAVEFORMS
VCC
tf
tr
OE1 or OE2
VCC
90%
INPUT A
50%
50%
GND
50%
tPZL tPLZ
10%
tPHL
tPLH
OUTPUT Y
50%
10%
90%
10%
OUTPUT Y
tTLH
tTHL
90%
VOH
50%
HIGH
IMPEDANCE
Figure 1.
High–Speed CMOS Logic Data
DL129 — Rev 6
VOL
tPZH tPHZ
50%
OUTPUT Y
HIGH
IMPEDANCE
GND
Figure 2.
3–3
MOTOROLA
MC74HC540A
TEST CIRCUITS
TEST
POINT
TEST
POINT
OUTPUT
DEVICE
UNDER
TEST
OUTPUT
DEVICE
UNDER
TEST
CL*
*Includes all probe and jig capacitance
CONNECT TO VCC WHEN
TESTING tPLZ AND tPZL.
CONNECT TO GND WHEN
TESTING tPHZ and tPZH.
1kΩ
CL*
*Includes all probe and jig capacitance
Figure 3.
Figure 4.
PIN DESCRIPTIONS
puts are enabled and the device functions as an inverter.
When a hgih voltage is applied to either input, the outputs
assume the high impedance state.
INPUTS
A1, A2, A3, A4, A5, A6, A7, A8 (PINS 2, 3, 4, 5, 6, 7, 8,
9) — Data input pins. Data on these pins appear in inverted
form on the corresponding Y outputs, when the outputs are
enabled.
OUTPUTS
Y1, Y2, Y3, Y4, Y5, Y6, Y7, Y8 (PINS 18, 17, 16, 15, 14,
13, 12, 11) — Device outputs. Depending upon the state of
the output enable pins, these outputs are either inverting outputs or high–impedance outputs.
CONTROLS
OE1, OE2 (PINS 1, 19) — Output enables (active–low).
When a low voltage is applied to both of these pins, the out-
LOGIC DETAIL
To 7 Other
Inverters
VCC
One of Eight
Inverters
INPUT A
OUTPUT Y
OE1
OE2
MOTOROLA
3–4
High–Speed CMOS Logic Data
DL129 — Rev 6
MC74HC540A
OUTLINE DIMENSIONS
N SUFFIX
PLASTIC PACKAGE
CASE 738–03
ISSUE E
–A–
20
11
1
10
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION L TO CENTER OF LEAD WHEN
FORMED PARALLEL.
4. DIMENSION B DOES NOT INCLUDE MOLD
FLASH.
B
L
C
–T–
DIM
A
B
C
D
E
F
G
J
K
L
M
N
K
SEATING
PLANE
M
N
E
G
F
J
D
0.25 (0.010)
M
T A
11
–B–
10X
P
0.010 (0.25)
1
M
B
M
10
20X
D
0.010 (0.25)
M
T A
B
S
J
S
F
R X 45 _
C
–T–
18X
G
SEATING
PLANE
K
M
T B
M
M
DW SUFFIX
PLASTIC SOIC PACKAGE
CASE 751D–04
ISSUE E
–A–
20
20 PL
0.25 (0.010)
20 PL
INCHES
MIN
MAX
1.010
1.070
0.240
0.260
0.150
0.180
0.015
0.022
0.050 BSC
0.050
0.070
0.100 BSC
0.008
0.015
0.110
0.140
0.300 BSC
0_
15 _
0.020
0.040
MILLIMETERS
MIN
MAX
25.66
27.17
6.10
6.60
3.81
4.57
0.39
0.55
1.27 BSC
1.27
1.77
2.54 BSC
0.21
0.38
2.80
3.55
7.62 BSC
0_
15_
0.51
1.01
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.150
(0.006) PER SIDE.
5. DIMENSION D DOES NOT INCLUDE
DAMBAR PROTRUSION. ALLOWABLE
DAMBAR PROTRUSION SHALL BE 0.13
(0.005) TOTAL IN EXCESS OF D DIMENSION
AT MAXIMUM MATERIAL CONDITION.
DIM
A
B
C
D
F
G
J
K
M
P
R
MILLIMETERS
MIN
MAX
12.65
12.95
7.40
7.60
2.35
2.65
0.35
0.49
0.50
0.90
1.27 BSC
0.25
0.32
0.10
0.25
0_
7_
10.05
10.55
0.25
0.75
INCHES
MIN
MAX
0.499
0.510
0.292
0.299
0.093
0.104
0.014
0.019
0.020
0.035
0.050 BSC
0.010
0.012
0.004
0.009
0_
7_
0.395
0.415
0.010
0.029
M
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High–Speed CMOS Logic Data
DL129 — Rev 6
◊
CODELINE
3–5
*MC74HC540A/D*
MC74HC540A/D
MOTOROLA