MC74LCX373DTG [ONSEMI]
Low-Voltage CMOS Octal Transparent Latch; 低电压CMOS八路透明锁存器
| 型号： | MC74LCX373DTG |
| 厂家： | 
ONSEMI |
| 描述： | Low-Voltage CMOS Octal Transparent Latch |
| 文件： | 总9页 (文件大小：121K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MC74LCX373
Low-Voltage CMOS
Octal Transparent Latch
With 5 V-Tolerant Inputs and Outputs
(3-State, Non-Inverting)
http://onsemi.com
MARKING
DIAGRAMS
The MC74LCX373 is a high performance, non-inverting octal
transparent latch operating from a 2.3 to 3.6 V supply. High
impedance TTL compatible inputs significantly reduce current
loading to input drivers while TTL compatible outputs offer improved
20
switching noise performance. A V specification of 5.5 V allows
I
MC74LCX373 inputs to be safely driven from 5 V devices.
SOIC-20
DW SUFFIX
CASE 751D
20
LCX373
AWLYYWWG
The MC74LCX373 contains 8 D-type latches with 3-state outputs.
When the Latch Enable (LE) input is HIGH, data on the Dn inputs
enters the latches. In this condition, the latches are transparent, i.e., a
latch output will change state each time its D input changes. When LE
is LOW, the latches store the information that was present on the D
inputs a setup time preceding the HIGH-to-LOW transition of LE.
The 3-state standard outputs are controlled by the Output Enable (OE)
input. When OE is LOW, the standard outputs are enabled. When OE
is HIGH, the standard outputs are in the high impedance state, but this
does not interfere with new data entering into the latches.
1
1
20
LCX
373
TSSOP-20
DT SUFFIX
CASE 948E
20
ALYWG
1
G
1
Features
•ꢀDesigned for 2.3 to 3.6 V V Operation
•ꢀ5 V Tolerant - Interface Capability With 5 V TTL Logic
•ꢀSupports Live Insertion and Withdrawal
CC
20
SOEIAJ-20
M SUFFIX
CASE 967
74LCX373
AWLYWWG
20
•ꢀI
Specification Guarantees High Impedance When V = 0 V
CC
OFF
1
1
•ꢀLVTTL Compatible
•ꢀLVCMOS Compatible
•ꢀ24 mA Balanced Output Sink and Source Capability
A
= Assembly Location
= Wafer Lot
= Year
L, WL
Y, YY
•ꢀNear Zero Static Supply Current in all Three Logic States (10 mA)
W, WW = Work Week
Substantially Reduces System Power Requirements
G or G
= Pb-Free Package
(Note: Microdot may be in either location)
•ꢀLatchup Performance Exceeds 500 mA
•ꢀESD Performance:
Human Body Model >2000 V
Machine Model >200 V
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 6 of this data sheet.
•ꢀPb-Free Packages are Available*
*For additional information on our Pb-Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
©ꢀ Semiconductor Components Industries, LLC, 2007
November, 2007 - Rev. 8
1
Publication Order Number:
MC74LCX373/D
MC74LCX373
1
OE
LE
11
2
5
nLE
D
V
O7 D7 D6 O6 O5 D5 D4 O4 LE
19 18 17 16 15 14 12
CC
O0
O1
O2
O3
O4
O5
O6
O7
3
4
Q
Q
Q
Q
Q
D0
D1
D2
D3
D4
D5
D6
D7
20
13
11
nLE
D
6
nLE
D
1
2
3
4
5
6
7
9
8
10
7
OE O0 D0 D1 O1 O2 D2 D3 O3 GND
Figure 1. Pinout (Top View)
9
nLE
D
8
12
15
16
19
nLE
D
13
14
17
18
PIN NAMES
PINS
FUNCTION
nLE
D
Q
Q
Q
OE
Output Enable Input
Latch Enable Input
Data Inputs
LE
D0-D7
O0-O7
nLE
D
3-State Latch Outputs
nLE
D
Figure 2. Logic Diagram
TRUTH TABLE
INPUTS
LE
OUTPUTS
On
OE
Dn
OPERATING MODE
L
L
H
H
H
L
H
L
Transparent (Latch Disabled); Read Latch
Latched (Latch Enabled) Read Latch
L
L
L
L
h
l
H
L
L
L
L
X
X
NC
Z
Hold; Read Latch
H
Hold; Disabled Outputs
H
H
H
H
H
L
Z
Z
Transparent (Latch Disabled); Disabled Outputs
Latched (Latch Enabled); Disabled Outputs
H
H
L
L
h
l
Z
Z
H
h
L
=
=
=
=
=
=
=
High Voltage Level
High Voltage Level One Setup Time Prior to the Latch Enable High-to-Low Transition
Low Voltage Level
Low Voltage Level One Setup Time Prior to the Latch Enable High-to-Low Transition
No Change, State Prior to the Latch Enable High-to-Low Transition
High or Low Voltage Level or Transitions are Acceptable
High Impedance State
l
NC
X
Z
For I Reasons DO NOT FLOAT Inputs
CC
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2
MC74LCX373
MAXIMUM RATINGS
Symbol
Parameter
Value
Condition
Unit
V
V
V
V
DC Supply Voltage
-0.5 to +7.0
CC
I
DC Input Voltage
-0.5 ≤ V ≤ +7.0
V
I
DC Output Voltage
-0.5 ≤ V ≤ +7.0
Output in 3-State
V
O
O
-0.5 ≤ V ≤ V + 0.5
Output in HIGH or LOW State (Note 1)
V
O
CC
I
I
DC Input Diode Current
DC Output Diode Current
-50
V < GND
I
mA
mA
mA
mA
mA
mA
°C
IK
-50
+50
50
V < GND
O
OK
V
O
> V
CC
I
I
I
DC Output Source/Sink Current
DC Supply Current Per Supply Pin
DC Ground Current Per Ground Pin
Storage Temperature Range
O
100
100
CC
GND
T
-65 to +150
STG
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. I absolute maximum rating must be observed.
O
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Min
Typ
Max
Unit
V
CC
Supply Voltage
Operating
Data Retention Only
2.0
1.5
2.5, 3.3
2.5, 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
5.5
O
I
HIGH Level Output Current
LOW Level Output Current
V
V
V
= 3.0 V - 3.6 V
= 2.7 V - 3.0 V
= 2.3 V - 2.7 V
- 24
- 12
- 8
mA
mA
OH
CC
CC
CC
I
OL
V
CC
V
CC
V
CC
= 3.0 V - 3.6 V
= 2.7 V - 3.0 V
= 2.3 V - 2.7 V
+ 24
+ 12
+ 8
T
Operating Free-Air Temperature
-40
0
+85
10
°C
A
Dt/DV
Input Transition Rise or Fall Rate, V from 0.8 V to 2.0 V, V = 3.0 V
IN CC
ns/V
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3
MC74LCX373
DC ELECTRICAL CHARACTERISTICS
T
A
= -40°C to +85°C
Symbol
Characteristic
Condition
Min
1.7
2.0
Max
Unit
V
IH
HIGH Level Input Voltage (Note 2)
V
2.3 V ≤ V ≤ 2.7 V
CC
2.7 V ≤ V ≤ 3.6 V
CC
V
LOW Level Input Voltage (Note 2)
HIGH Level Output Voltage
V
V
2.3 V ≤ V ≤ 2.7 V
CC
0.7
0.8
IL
2.7 V ≤ V ≤ 3.6 V
CC
V
OH
2.3 V ≤ V ≤ 3.6 V; I = 100 mA
V
CC
ꢀ-ꢀ0.2
CC
OL
V
= 2.3 V; I = -8 mA
OH
1.8
2.2
2.4
2.2
CC
V
CC
V
CC
V
CC
= 2.7 V; I = -12 mA
OH
= 3.0 V; I = -18 mA
OH
= 3.0 V; I = -24 mA
OH
V
LOW Level Output Voltage
V
2.3 V ≤ V ≤ 3.6 V; I = 100 mA
0.2
0.6
0.4
0.4
0.55
5
OL
CC
OL
V
CC
= 2.3 V; I = 8 mA
OL
V
= 2.7 V; I = 12 mA
OL
CC
CC
CC
V
V
= 3.0 V; I = 16 mA
OL
= 3.0 V; I = 24 mA
OL
I
I
Input Leakage Current
3-State Output Current
2.3 V ≤ V ≤ 3.6 V; 0 V ≤ V ≤ 5.5 V
mA
mA
CC
I
I
2.3 ≤ V ≤ 3.6 V; 0V ≤ V ≤ 5.5 V;
5
OZ
CC
O
V = V or V
I
IH
IL
I
I
Power-Off Leakage Current
Quiescent Supply Current
V
= 0 V; V or V = 5.5 V
I
10
10
mA
mA
OFF
CC
O
2.3 ≤ V ≤ 3.6 V; V = GND or V
CC
CC
CC
I
2.3 ≤ V ≤ 3.6 V; 3.6 ≤ V or V ≤ 5.5 V
10
CC
I
O
DI
CC
Increase in I per Input
CC
2.3 ≤ V ≤ 3.6 V; V = V - 0.6 V
500
mA
CC
IH
CC
2. These values of V are used to test DC electrical characteristics only.
I
AC CHARACTERISTICS t = t = 2.5 ns; R = 500 W
R
F
L
Limits
= -40°C to +85°C
T
A
V
CC
= 3.3 V 0.3 V
V
CC
= 2.7 V
V = 2.5 V 0.2 V
CC
C = 50 pF
L
C = 30 pF
L
C = 50 pF
L
Min
Max
Min
Max
Min
Max
Symbol
Parameter
Waveform
Unit
t
t
Propagation Delay
D to O
1
1.5
1.5
8.0
8.0
1.5
1.5
9.0
9.0
1.5
1.5
9.6
9.6
ns
PLH
PHL
n
n
t
t
Propagation Delay
LE to O
3
2
2
3
3
3
1.5
1.5
8.5
8.5
1.5
1.5
9.5
9.5
1.5
1.5
10.5
10.5
ns
ns
ns
PLH
PHL
n
t
t
Output Enable Time to HIGH
and LOW Level
1.5
1.5
8.5
8.5
1.5
1.5
9.5
9.5
1.5
1.5
10.5
10.5
PZH
PZL
t
t
Output Disable Time From
High and Low Level
1.5
1.5
7.5
7.5
1.5
1.5
8.5
8.5
1.5
1.5
9.0
9.0
PHZ
PLZ
t
t
t
Setup TIme, HIGH or LOW
D to LE
2.5
1.5
3.3
2.5
1.5
3.3
4.0
2.0
4.0
s
n
Hold TIme, HIGH or LOW
D to LE
h
n
LE Pulse Width, HIGH
w
t
t
Output-to-Output Skew
(Note 3)
1.0
1.0
ns
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.
); parameter
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
OSLH
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4
MC74LCX373
DYNAMIC SWITCHING CHARACTERISTICS
T
A
= +25°C
Symbol
Characteristic
Condition
Min
Typ
Max
Unit
V
OLP
Dynamic LOW Peak Voltage (Note 4)
V
V
= 3.3 V, C = 50 pF, V = 3.3 V, V = 0 V
0.8
0.6
V
V
CC
L
IH
= 2.5 V, C = 30 pF, V = 2.5 V, V = 0 V
IL
CC
L
IH
IL
V
OLV
Dynamic LOW Valley Voltage (Note 4)
V
V
= 3.3 V, C = 50 pF, V = 3.3 V, V = 0 V
-0.8
-0.6
V
V
CC
L
IH
= 2.5 V, C = 30 pF, V = 2.5 V, V = 0 V
IL
CC
L
IH
IL
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
= 3.3 V, V = 0 V or V
Typical
Unit
pF
C
C
C
V
V
7
8
IN
CC
I
CC
CC
Input/Output Capacitance
= 3.3 V, V = 0 V or V
I
pF
I/O
PD
CC
Power Dissipation Capacitance
10 MHz, V = 3.3 V, V = 0 V or V
I
25
pF
CC
CC
V
CC
OE
On
Vmi
Vmi
V
0 V
CC
t
t
PHZ
PZH
Vmi
Vmi
Dn
V
V
OH
0 V
HZ
Vmo
t
t
PHL
PLH
V
OH
OL
t
t
PLZ
PZL
Vmo
Vmo
On
V
Vmo
On
V
V
LZ
WAVEFORM 1 - PROPAGATION DELAYS
= t = 2.5 ns, 10% to 90%; f = 1 MHz; t = 500 ns
OL
t
R
F
W
WAVEFORM 2 - OUTPUT ENABLE AND DISABLE TIMES
= t = 2.5 ns, 10% to 90%; f = 1 MHz; t = 500 ns
t
R
F
W
2.7 V
1.5 V
Dn
LE
V
CC
0 V
Symbol 3.3 V 0.3 V
2.7 V
1.5 V
1.5 V
2.5 V 0.2 V
t
s
t
h
Vmi
1.5 V
1.5 V
V
/2
/2
CC
CC
2.7 V
Vmo
V
t
w
1.5 V
1.5 V
V
HZ
V
LZ
V
+ 0.3 V
V
+ 0.3 V
V
OL
+ 0.15 V
- 015 V
OL
OL
0 V
t , t
PLH PHL
V
OH
- 0.3 V
V
OH
- 0.3 V
V
OH
V
OH
OL
On
1.5 V
V
WAVEFORM 3 - LE to On PROPAGATION DELAYS, LE MINIMUM
PULSE WIDTH, Dn to LE SETUP AND HOLD TIMES
t
R
= t = 2.5 ns, 10% to 90%; f = 1 MHz; t = 500 ns except when noted
F W
Figure 3. AC Waveforms
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5
MC74LCX373
V
CC
6 V
OPEN
GND
R
1
PULSE
GENERATOR
DUT
R
T
C
R
L
L
TEST
SWITCH
t
t
, t
PLH PHL
Open
, t
PZL PLZ
6 V at V = 3.3 ꢀ0.3 V
CC
6 V at V = 2.5 ꢀ0.2 V
CC
Open Collector/Drain t
and t
6 V
PLH
PHL
t , t
PZH PHZ
GND
C = 50 pF at V = 3.3 ꢀ0.3 V or equivalent (includes jig and probe capacitance)
L
CC
C = 30 pF at V = 2.5 ꢀ0.2 V or equivalent (includes jig and probe capacitance)
L
CC
R = R = 500 W or equivalent
L
R = Z
1
of pulse generator (typically 50 W)
T
OUT
Figure 4. Test Circuit
ORDERING INFORMATION
Device
†
Package
Shipping
MC74LCX373DWR2
MC74LCX373DWR2G
SOIC-20
1000 Tape & Reel
1000 Tape & Reel
SOIC-20
(Pb-Free)
MC74LCX373DT
TSSOP-20*
75 Units / Rail
75 Units / Rail
MC74LCX373DTG
TSSOP-20*
(Pb-Free)
MC74LCX373DTR2
MC74LCX373DTR2G
TSSOP-20*
2500 Tape & Reel
2500 Tape & Reel
TSSOP-20*
(Pb-Free)
MC74LCX373MEL
MC74LCX373MELG
SOEIAJ-20
2000 Tape & Reel
2000 Tape & Reel
SOEIAJ-20
(Pb-Free)
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
*This package is inherently Pb-Free.
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6
MC74LCX373
PACKAGE DIMENSIONS
SOIC-20
DW SUFFIX
CASE 751D-05
ISSUE G
NOTES:
D
1. DIMENSIONS ARE IN MILLIMETERS.
2. INTERPRET DIMENSIONS AND TOLERANCES
PER ASME Y14.5M, 1994.
A
q
3. DIMENSIONS D AND E DO NOT INCLUDE MOLD
PROTRUSION.
20
11
4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE.
5. DIMENSION B DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE PROTRUSION
SHALL BE 0.13 TOTAL IN EXCESS OF B
DIMENSION AT MAXIMUM MATERIAL
CONDITION.
E
B
1
10
MILLIMETERS
DIM MIN
MAX
2.65
0.25
0.49
0.32
12.95
7.60
A
A1
B
C
D
E
2.35
0.10
0.35
0.23
12.65
7.40
20X B
M
S
S
B
T
0.25
A
e
1.27 BSC
H
h
10.05
0.25
0.50
0
10.55
0.75
0.90
7
A
L
q
_
_
SEATING
PLANE
18X e
A1
C
T
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7
MC74LCX373
PACKAGE DIMENSIONS
TSSOP-20
DT SUFFIX
CASE 948E-02
ISSUE C
NOTES:
ꢁꢂ1. DIMENSIONING AND TOLERANCING
PER ANSI Y14.5M, 1982.
ꢁꢂ2. CONTROLLING DIMENSION:
MILLIMETER.
20X K REF
M
S
S
V
0.10 (0.004)
T U
S
0.15 (0.006) T U
K
ꢁꢂ3. 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.
ꢁꢂ4. DIMENSION B DOES NOT INCLUDE
INTERLEAD FLASH OR PROTRUSION.
INTERLEAD FLASH OR PROTRUSION
SHALL NOT EXCEED 0.25 (0.010) PER
SIDE.
K1
20
11
2X L/2
J J1
B
L
-U-
PIN 1
IDENT
SECTION N-N
ꢁꢂ5. 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.
1
10
0.25 (0.010)
N
S
0.15 (0.006) T U
ꢁꢂ6. TERMINAL NUMBERS ARE SHOWN
FOR REFERENCE ONLY.
M
A
ꢁꢂ7. DIMENSION A AND B ARE TO BE
DETERMINED AT DATUM PLANE -W-.
-V-
N
MILLIMETERS
DIM MIN MAX
INCHES
MIN
MAX
0.260
0.177
0.047
0.006
0.030
F
A
B
6.40
4.30
---
6.60 0.252
4.50 0.169
DETAIL E
C
1.20
---
D
0.05
0.50
0.15 0.002
0.75 0.020
-W-
F
C
G
H
0.65 BSC
0.026 BSC
0.27
0.09
0.09
0.19
0.19
0.37
0.011
0.015
0.008
0.006
0.012
0.010
J
0.20 0.004
0.16 0.004
0.30 0.007
0.25 0.007
G
D
J1
K
H
DETAIL E
0.100 (0.004)
-T- SEATING
PLANE
K1
L
6.40 BSC
0.252 BSC
0
M
0
8
8
_
_
_
_
SOLDERING FOOTPRINT
7.06
1
0.65
PITCH
16X
0.36
16X
1.26
DIMENSIONS: MILLIMETERS
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8
MC74LCX373
PACKAGE DIMENSIONS
SOEIAJ-20
M SUFFIX
CASE 967-01
ISSUE A
NOTES:
ꢀꢁ1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
ꢀꢁ2. CONTROLLING DIMENSION: MILLIMETER.
ꢀꢁ3. 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. TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
H
E
_
E
M
ꢀꢁ5. 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
1
10
DETAIL P
Z
D
VIEW P
MILLIMETERS
INCHES
MIN
---
e
A
DIM MIN
MAX
MAX
0.081
0.008
0.020
0.010
0.504
0.215
c
A
---
0.05
0.35
0.15
12.35
5.10
2.05
A
1
0.20 0.002
0.50 0.014
0.25 0.006
b
c
D
E
e
12.80 0.486
5.45 0.201
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
8.20 0.291
0.85 0.020
1.50 0.043
0.323
0.033
0.059
E
L
L
E
M
Q
0
10
0.90 0.028
10
_
0.035
0.032
0
_
_
_
0.70
---
1
Z
0.81
---
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MC74LCX373/D
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