MC145572FN [MOTOROLA]
LOW-VOLTAGE CMOS OCTAL BUFFER; 低电压CMOS八路缓冲器
| 型号： | MC145572FN |
| 厂家： | 
MOTOROLA |
| 描述： | LOW-VOLTAGE CMOS OCTAL BUFFER |
| 文件： | 总8页 (文件大小：158K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SEMICONDUCTOR TECHNICAL DATA
The MC74LCX240 is a high performance, inverting octal buffer
operating from a 2.7 to 3.6V supply. High impedance TTL compatible
inputs significantly reduce current loading to input drivers while TTL
compatible outputs offer improved switching noise performance. A V
I
LOW–VOLTAGE CMOS
OCTAL BUFFER
specification of 5.5V allows MC74LCX240 inputs to be safely driven from
5V devices. The MC74LCX240 is suitable for memory address driving
and all TTL level bus oriented transceiver applications.
Current drive capability is 24mA at the outputs. The Output Enable
(OE) input, when HIGH, disables the outputs by placing them in a HIGH Z
condition.
DW SUFFIX
PLASTIC SOIC
CASE 751D–04
20
• Designed for 2.7 to 3.6V V
CC
• 5V Tolerant — Interface Capability With 5V TTL Logic
• Supports Live Insertion and Withdrawal
Operation
1
• I
OFF
• LVTTL Compatible
Specification Guarantees High Impedance When V
= 0V
CC
M SUFFIX
PLASTIC SOIC EIAJ
20
CASE 967–01
• LVCMOS Compatible
1
• 24mA Balanced Output Sink and Source Capability
• Near Zero Static Supply Current in All Three Logic States (10µA)
Substantially Reduces System Power Requirements
SD SUFFIX
20
• Latchup Performance Exceeds 500mA
PLASTIC SSOP
CASE 940C–03
• ESD Performance: Human Body Model >2000V; Machine Model >200V
1
DT SUFFIX
PLASTIC TSSOP
CASE 948E–02
20
1
Pinout: 20–Lead (Top View)
V
2OE 1O0
2D0
17
1O1
16
2D1
15
1O2
14
2D2
13
1O3
12
2D3
11
CC
20
19
18
PIN NAMES
Pins
Function
nOE
1Dn, 2Dn
1On, 2On
Output Enable Inputs
Data Inputs
3–State Outputs
1
2
3
4
5
6
7
9
8
10
1OE
1D0
2O0
1D1
2O1
1D2
2O2
1D3
2O3 GND
9/95
Motorola, Inc. 1996
REV 3
1
MC74LCX240
LOGIC DIAGRAM
1
1OE
1D0
1D1
1D2
1D3
2
4
6
8
18
16
14
12
1O0
1O1
1O2
1O3
19
2OE
2D0
2D1
2D2
2D3
17
15
13
11
3
5
7
9
2O0
2O1
2O2
2O3
INPUTS
OUTPUTS
1OE
2OE
1Dn
2Dn
1On, 2On
L
L
L
H
X
H
L
H
Z
H = High Voltage Level; L = Low Voltage Level; Z = High
Impedance State; X = High or Low Voltage Level and Transitions
Are Acceptable, for I
reasons, DO NOT FLOAT Inputs
CC
MOTOROLA
2
MC74LCX240
ABSOLUTE MAXIMUM RATINGS*
Symbol
CC
Parameter
Value
Condition
Unit
V
V
V
V
DC Supply Voltage
DC Input Voltage
DC Output Voltage
–0.5 to +7.0
–0.5 ≤ V ≤ +7.0
V
I
I
–0.5 ≤ V ≤ +7.0
Output in 3–State
Note 1.
V
O
O
–0.5 ≤ V ≤ V
+ 0.5
CC
V
O
I
I
DC Input Diode Current
DC Output Diode Current
–50
–50
V < GND
mA
mA
mA
mA
mA
mA
°C
IK
I
V
O
< GND
OK
+50
V > V
O CC
I
I
I
DC Output Source/Sink Current
DC Supply Current Per Supply Pin
DC Ground Current Per Ground Pin
Storage Temperature Range
±50
O
±100
±100
CC
GND
T
–65 to +150
STG
*
Absolutemaximumcontinuousratingsarethosevaluesbeyondwhichdamagetothedevicemayoccur. Exposuretotheseconditionsorconditions
beyond those indicated may adversely affect device reliability. Functional operation under absolute–maximum–rated conditions is not implied.
1. Output in HIGH or LOW State. I absolute maximum rating must be observed.
O
RECOMMENDED OPERATING CONDITIONS
Symbol
CC
Parameter
Min
Typ
Max
Unit
V
Supply Voltage
Operating
Data Retention Only
2.0
1.5
3.3
3.3
3.6
3.6
V
V
V
Input Voltage
0
5.5
V
V
I
Output Voltage
(HIGH or LOW State)
(3–State)
0
0
V
CC
O
5.5
–24
24
I
I
I
I
HIGH Level Output Current, V
= 3.0V – 3.6V
mA
mA
mA
mA
°C
OH
OL
OH
OL
CC
LOW Level Output Current, V
= 3.0V – 3.6V
= 2.7V – 3.0V
= 2.7V – 3.0V
CC
HIGH Level Output Current, V
–12
12
CC
LOW Level Output Current, V
CC
T
A
Operating Free–Air Temperature
Input Transition Rise or Fall Rate, V from 0.8V to 2.0V,
–40
0
+85
10
∆t/∆V
ns/V
IN
V
= 3.0V
CC
DC ELECTRICAL CHARACTERISTICS
T
A
= –40°C to +85°C
Symbol
Characteristic
HIGH Level Input Voltage (Note 2.)
LOW Level Input Voltage (Note 2.)
HIGH Level Output Voltage
Condition
Min
2.0
Max
Unit
V
V
V
V
2.7V ≤ V
≤ 3.6V
IH
CC
CC
2.7V ≤ V
2.7V ≤ V
≤ 3.6V
= –100µA
0.8
V
IL
≤ 3.6V; I
V
– 0.2
V
OH
CC
OH
CC
V
CC
V
CC
V
CC
= 2.7V; I
= 3.0V; I
= 3.0V; I
= –12mA
= –18mA
= –24mA
2.2
OH
OH
OH
2.4
2.2
V
OL
LOW Level Output Voltage
2.7V ≤ V
≤ 3.6V; I
= 100µA
0.2
0.4
V
CC
OL
OL
V
= 2.7V; I = 12mA
CC
CC
CC
V
V
= 3.0V; I
= 3.0V; I
= 16mA
= 24mA
0.4
OL
OL
0.55
2. These values of V are used to test DC electrical characteristics only.
I
3
MOTOROLA
MC74LCX240
DC ELECTRICAL CHARACTERISTICS (continued)
T
A
= –40°C to +85°C
Symbol
Characteristic
Input Leakage Current
Condition
≤ 3.6V; 0V ≤ V ≤ 5.5V
Min
Max
±5.0
±5.0
Unit
µA
I
I
2.7V ≤ V
I
CC
I
3–State Output Current
2.7 ≤ V
≤ 3.6V; 0V ≤ V ≤ 5.5V;
µA
OZ
CC
V = V or V
IL
O
I
IH
I
I
Power–Off Leakage Current
Quiescent Supply Current
V
= 0V; V or V = 5.5V
10
10
µA
µA
µA
µA
OFF
CC
I
O
2.7 ≤ V
≤ 3.6V; V = GND or V
CC
CC
I
CC
2.7 ≤ V
≤ 3.6V; 3.6 ≤ V or V ≤ 5.5V
±10
500
CC
I
O
∆I
CC
Increase in I
CC
per Input
2.7 ≤ V
≤ 3.6V; V = V
IH
– 0.6V
CC
CC
AC CHARACTERISTICS (t = t = 2.5ns; C = 50pF; R = 500Ω)
R
F
L
L
Limits
T
A
= –40°C to +85°C
V
= 3.0V to 3.6V
Max
V
= 2.7V
CC
CC
Symbol
Parameter
Waveform
Min
Max
Unit
t
t
Propagation Delay
Input to Output
1
1.5
1.5
6.5
6.5
7.5
7.5
ns
PLH
PHL
t
t
Output Enable Time to
High and Low Level
2
2
1.5
1.5
8.0
8.0
9.0
9.0
ns
ns
ns
PZH
PZL
t
t
Output Disable Time From
High and Low Level
1.5
1.5
7.0
7.0
8.0
8.0
PHZ
PLZ
t
t
Output–to–Output Skew
(Note 3.)
1.0
1.0
OSHL
OSLH
3. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device.
The specification applies to any outputs switching in the same direction, either HIGH–to–LOW (t
guaranteed by design.
) or LOW–to–HIGH (t
OSHL
); parameter
OSLH
DYNAMIC SWITCHING CHARACTERISTICS
T
A
= +25°C
Symbol
Characteristic
Condition
Min
Typ
0.8
0.8
Max
Unit
V
V
V
Dynamic LOW Peak Voltage (Note 4.)
Dynamic LOW Valley Voltage (Note 4.)
V
V
= 3.3V, C = 50pF, V = 3.3V, V = 0V
L IH IL
OLP
CC
= 3.3V, C = 50pF, V = 3.3V, V = 0V
IH IL
V
OLV
CC
L
4. Number of outputs defined as “n”. Measured with “n–1” outputs switching from HIGH–to–LOW or LOW–to–HIGH. The remaining output is
measured in the LOW state.
CAPACITIVE CHARACTERISTICS
Symbol
Parameter
Input Capacitance
Condition
= 3.3V, V = 0V or V
Typical
Unit
pF
C
C
C
V
V
7
8
IN
CC
I
CC
CC
Output Capacitance
= 3.3V, V = 0V or V
pF
OUT
PD
CC
I
Power Dissipation Capacitance
10MHz, V
= 3.3V, V = 0V or V
CC
25
pF
CC
I
MOTOROLA
4
MC74LCX240
2.7V
0V
1.5V
1.5V
1Dn, 2Dn
1On, 2On
t
t
PLH
PHL
V
OH
OL
1.5V
1.5V
V
WAVEFORM 1 – PROPAGATION DELAYS
= t = 2.5ns, 10% to 90%; f = 1MHz; t = 500ns
t
R
F
W
2.7V
0V
1.5V
1OE, 2OE
1On, 2On
t
t
PHZ
PZH
V
V
CC
OH
– 0.3V
1.5V
1.5V
≈
0V
t
t
PLZ
PZL
≈
3.0V
1On, 2On
V
GND
+ 0.3V
OL
WAVEFORM 2 – OUTPUT ENABLE AND DISABLE TIMES
t
= t = 2.5ns, 10% to 90%; f = 1MHz; t = 500ns
R
F
W
Figure 1. AC Waveforms
V
CC
6V
OPEN
GND
R
1
PULSE
GENERATOR
DUT
R
C
R
L
T
L
TEST
SWITCH
Open
6V
t , t
PLH PHL
t , t
PZL PLZ
Open Collector/Drain t
PLH
and t
PHL
6V
t
, t
GND
PZH PHZ
C
R
R
= 50pF or equivalent (Includes jig and probe capacitance)
L
L
T
= R = 500Ω or equivalent
1
OUT
= Z
of pulse generator (typically 50Ω)
Figure 2. Test Circuit
5
MOTOROLA
MC74LCX240
OUTLINE DIMENSIONS
DW SUFFIX
PLASTIC SOIC PACKAGE
CASE 751D–04
ISSUE E
–A
–
NOTES:
1. DIMENSIONING AND TOLERANCING PER
20
11
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.
–B
–
P 10 PL
M
M
0.010 (0.25)
B
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.
1
10
D 20 PL
J
M
S
S
MILLIMETERS
INCHES
0.010 (0.25)
T
A
B
DIM
A
B
C
D
MIN
12.65
7.40
2.35
0.35
0.50
MAX
12.95
7.60
2.65
0.49
0.90
MIN
MAX
0.510
0.299
0.104
0.019
0.035
0.499
0.292
0.093
0.014
0.020
F
F
R X 45°
G
J
K
1.27 BSC
0.050 BSC
0.25
0.10
0.32
0.25
0.010
0.004
0.012
0.009
C
M
P
R
0
°
7
°
0
°
7°
0.415
0.029
10.05
0.25
10.55
0.75
0.395
0.010
–T
M
–
SEATING
PLANE
K
G 18 PL
M SUFFIX
PLASTIC SOIC EIAJ PACKAGE
CASE 967–01
ISSUE O
NOTES:
1
DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2
3
CONTROLLING DIMENSION: MILLIMETER.
DIMENSIONS D AND E DO NOT INCLUDE MOLD
FLASH OR PROTRUSIONS AND ARE MEASURED
AT THE PARTING LINE. MOLD FLASH OR
PROTRUSIONS SHALL NOT EXCEED 0.15 (0.006)
PER SIDE.
L
E
20
11
Q
1
4
5
TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
E H
E
M
THE LEAD WIDTH DIMENSION (b) DOES NOT
INCLUDE DAMBAR PROTRUSION. ALLOWABLE
DAMBAR PROTRUSION SHALL BE 0.08 (0.003)
TOTAL IN EXCESS OF THE LEAD WIDTH
DIMENSION AT MAXIMUM MATERIAL CONDITION.
DAMBAR CANNOT BE LOCATED ON THE LOWER
RADIUS OR THE FOOT. MINIMUM SPACE
BETWEEN PROTRUSIONS AND ADJACENT LEAD
TO BE 0.46 ( 0.018).
L
10
1
DETAIL P
Z
D
VIEW P
MILLIMETERS
INCHES
e
A
DIM
A
MIN
---
MAX
2.05
0.20
0.50
0.27
12.80
5.45
MIN
---
MAX
0.081
0.008
0.020
0.011
0.504
0.215
c
A
0.05
0.35
0.18
12.35
5.10
0.002
0.014
0.007
0.486
0.201
1
b
c
D
E
e
A
b
1
1.27 BSC
0.050 BSC
M
0.10 (0.004)
0.13 (0.005)
H
7.40
0.50
1.10
0
8.20
0.85
1.50
10
0.291
0.020
0.043
0
0.323
0.033
0.059
10
E
L
L
M
E
Q
Z
0.70
---
0.90
0.81
0.028
---
0.035
0.032
1
MOTOROLA
6
MC74LCX240
OUTLINE DIMENSIONS
SD SUFFIX
PLASTIC SSOP PACKAGE
CASE 940C–03
NOTES:
13 DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
14 CONTROLLING DIMENSION: MILLIMETER.
15 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.
16 DIMENSION B DOES NOT INCLUDE INTERLEAD
FLASH OR PROTRUSION. INTERLEAD FLASH OR
PROTRUSION SHALL NOT EXCEED 0.15 (0.006)
PER SIDE.
ISSUE B
20X K REF
0.12 (0.005)
M
S
S
T
U
V
0.25 (0.010)
N
20
11
10
L/2
17 DIMENSION K DOES NOT INCLUDE DAMBAR
PROTRUSION/INTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.13 (0.005) TOTAL IN
EXCESS OF K DIMENSION AT MAXIMUM
MATERIAL CONDITION. DAMBAR INTRUSION
SHALL NOT REDUCE DIMENSION K BY MORE
THAN 0.07 (0.002) AT LEAST MATERIAL
CONDITION.
18 TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
19 DIMENSION A AND B ARE TO BE DETERMINED
AT DATUM PLANE –W–.
M
N
B
L
F
PIN 1
IDENT
1
DETAIL E
K
–U–
A
–V–
J
J1
MILLIMETERS
INCHES
DIM
A
B
C
D
MIN
7.07
5.20
1.73
0.05
0.63
MAX
7.33
5.38
1.99
0.21
0.95
MIN
MAX
0.288
0.212
0.078
0.008
0.037
0.278
0.205
0.068
0.002
0.024
M
S
0.20 (0.008)
T U
K1
SECTION N–N
F
G
H
J
J1
K
K1
L
0.65 BSC
0.026 BSC
0.59
0.09
0.09
0.25
0.25
7.65
0
0.75
0.20
0.16
0.38
0.33
7.90
8
0.023
0.003
0.003
0.010
0.010
0.301
0
0.030
0.008
0.006
0.015
0.013
0.311
8
–W–
C
0.076 (0.003)
SEATING
PLANE
–T–
D
G
DETAIL E
M
H
DT SUFFIX
PLASTIC TSSOP PACKAGE
CASE 948E–02
ISSUE A
20X K REF
0.10 (0.004)
NOTES:
6
DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
M
S
S
T
U
V
S
0.15 (0.006)
T U
7
8
CONTROLLING DIMENSION: MILLIMETER.
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.
K
K1
20
11
2X L/2
9
DIMENSION B DOES NOT INCLUDE INTERLEAD
FLASH OR PROTRUSION. INTERLEAD FLASH OR
PROTRUSION SHALL NOT EXCEED 0.25 (0.010)
PER SIDE.
J J1
B
L
–U–
PIN 1
IDENT
10 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.
11 TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
SECTION N–N
1
10
0.25 (0.010)
N
S
12 DIMENSION A AND B ARE TO BE DETERMINED
AT DATUM PLANE –W–.
0.15 (0.006)
T U
M
A
MILLIMETERS
INCHES
DIM
A
B
C
D
MIN
6.40
4.30
–––
0.05
0.50
MAX
6.60
4.50
1.20
0.15
0.75
MIN
MAX
0.260
0.177
0.047
0.006
0.030
–V–
0.252
0.169
–––
0.002
0.020
N
F
F
G
H
J
J1
K
K1
L
0.65 BSC
0.026 BSC
DETAIL E
0.27
0.09
0.09
0.19
0.19
0.37
0.20
0.16
0.30
0.25
0.011
0.004
0.004
0.007
0.007
0.015
0.008
0.006
0.012
0.010
–W–
C
6.40 BSC
0.252 BSC
G
D
M
0
8
0
8
H
DETAIL E
0.100 (0.004)
–T– SEATING
PLANE
7
MOTOROLA
MC74LCX240
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
others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other
applicationsintended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury
ordeathmayoccur. ShouldBuyerpurchaseoruseMotorolaproductsforanysuchunintendedorunauthorizedapplication,BuyershallindemnifyandholdMotorola
and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees
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
Motorola was negligent regarding the design or manufacture of the part. Motorola and
Opportunity/Affirmative Action Employer.
are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal
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MC74LCX240/D
◊
相关型号：
MC145574APBR2
Digital SLIC, 1-Func, PQFP32, 7 X 7 MM, 1.40 MM HEIGHT, 0.80 MM PITCH, TQFP-32
MOTOROLA
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