74LVC373A D

74LVC373A
Low-Voltage CMOS Octal
Transparent Latch
With 5 V−Tolerant Inputs and Outputs
(3−State, Non−Inverting)
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The 74LVC373A is a high performance, non−inverting octal
transparent latch operating from a 1.2 to 3.6 V supply. High impedance
TTL compatible inputs significantly reduce current loading to input
drivers while TTL compatible outputs offer improved switching noise
performance. A VI specification of 5.5 V allows 74LVC373A inputs
to be safely driven from 5 V devices.
The 74LVC373A 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.
MARKING
DIAGRAM
20
20
1
LCX
373A
ALYWG
G
TSSOP−20
DT SUFFIX
CASE 948E
1
A
L, WL
Y, YY
W, WW
G or G
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
(Note: Microdot may be in either location)
Features
•
•
•
•
•
•
•
•
Designed for 1.2 to 3.6 V VCC Operation
5 V Tolerant − Interface Capability With 5 V TTL Logic
Supports Live Insertion and Withdrawal
IOFF Specification Guarantees High Impedance When VCC = 0 V
24 mA Output Sink and Source Capability
Near Zero Static Supply Current in all Three Logic States (10 mA)
Substantially Reduces System Power Requirements
ESD Performance:
♦ Human Body Model >2000 V
♦ Machine Model >200 V
These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
© Semiconductor Components Industries, LLC, 2015
September, 2015 − Rev. 1
1
ORDERING INFORMATION
See detailed ordering and shipping information on page 8 of
this data sheet.
Publication Order Number:
74LVC373A/D
74LVC373A
OE
LE
O7
VCC
20
19
D7
18
D6
17
O6
16
O5
D5
15
14
D4
13
O4
1
11
LE
12
11
D0
D
3
4
5
6
7
8
9
10
OE
O0
D0
D1
O1
O2
D2
D3
O3
GND
D
D2
D
D
Latch Enable Input
D0−D7
Data Inputs
O0−O7
3−State Latch Outputs
12
LE
D
15
LE
14
D5
D
16
LE
17
D
19
LE
Q
D7
D
Figure 2. Logic Diagram
TRUTH TABLE
Outputs
OE
LE
Dn
On
L
L
H
H
H
L
H
L
Transparent (Latch Disabled); Read Latch
L
L
L
L
h
l
H
L
Latched (Latch Enabled) Read Latch
L
L
X
NC
H
L
X
Z
Hold; Disabled Outputs
H
H
H
H
H
L
Z
Z
Transparent (Latch Disabled); Disabled Outputs
H
H
L
L
h
l
Z
Z
Latched (Latch Enabled); Disabled Outputs
Operating Mode
Hold; Read Latch
H
= High Voltage Level
h
= High Voltage Level One Setup Time Prior to the Latch Enable High−to−Low Transition
L
= Low Voltage Level
l
= Low Voltage Level One Setup Time Prior to the Latch Enable High−to−Low Transition
NC = No Change, State Prior to the Latch Enable High−to−Low Transition
X
= High or Low Voltage Level or Transitions are Acceptable
Z
= High Impedance State
For ICC Reasons DO NOT FLOAT Inputs
2
O6
Q
18
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O5
Q
D6
Inputs
O4
Q
D4
LE
O3
Q
13
FUNCTION
9
LE
D3
Output Enable Input
O2
Q
8
OE
6
LE
Figure 1. Pinout (Top View)
PINS
O1
Q
7
PIN NAMES
5
LE
D1
2
O0
Q
4
1
2
LE
3
O7
74LVC373A
MAXIMUM RATINGS
Symbol
VCC
Parameter
Condition
Value
Unit
−0.5 to +6.5
V
−0.5 ≤ VI ≤ +6.5
V
Output in 3−State
−0.5 ≤ VO ≤ +6.5
V
Output in HIGH or LOW State
(Note 1)
−0.5 ≤ VO ≤ VCC + 0.5
V
DC Supply Voltage
VI
DC Input Voltage
VO
DC Output Voltage
IIK
DC Input Diode Current
VI < GND
−50
mA
IOK
DC Output Diode Current
VO < GND
−50
mA
VO > VCC
+50
mA
DC Output Source/Sink Current
±50
mA
ICC
DC Supply Current Per Supply Pin
±100
mA
IGND
DC Ground Current Per Ground Pin
±100
mA
TSTG
Storage Temperature Range
−65 to +150
°C
IO
TL
Lead Temperature, 1 mm from Case for
10 Seconds
TL = 260
°C
TJ
Junction Temperature Under Bias
TJ = 135
°C
110.7
°C/W
qJA
Thermal Resistance (Note 2)
MSL
Moisture Sensitivity
Level 1
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. IO absolute maximum rating must be observed.
2. Measured with minimum pad spacing on an FR4 board, using 10 mm−by−1 inch, 2 ounce copper trace no air flow.
RECOMMENDED OPERATING CONDITIONS
Symbol
VCC
Parameter
Min
Typ
Max
Unit
V
Supply Voltage Operating Functional
1.65
1.2
3.6
3.6
VI
Input Voltage
0
5.5
VO
Output Voltage
HIGH or LOW State
3−State
0
0
VCC
5.5
IOH
HIGH Level Output Current
VCC = 3.0 V − 3.6 V VCC = 2.7 V − 3.0 V
IOL
LOW Level Output Current
VCC = 3.0 V − 3.6 V VCC = 2.7 V − 3.0 V
TA
Operating Free−Air Temperature
−40
+125
Dt/DV
Input Transition Rise or Fall Rate,
VCC = 1.65 to 2.7 V
VCC = 2.7 to 3.6 V
0
0
20
10
V
V
mA
−24
−12
mA
24
12
°C
ns/V
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond
the Recommended Operating Ranges limits may affect device reliability.
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3
74LVC373A
DC ELECTRICAL CHARACTERISTICS
−40 to +855C
Symbol
VIH
VIL
VOH
VOL
Parameter
HIGH−level input voltage
LOW−level input voltage
HIGH−level output voltage
−40 to +1255C
Conditions
Min
Typ
(Note 3)
Max
Min
Typ
(Note 3)
Max
Unit
VCC = 1.2 V
1.08
−
−
1.08
−
−
V
VCC = 1.65 V to 1.95 V
0.65 x
VCC
−
−
0.65 x
VCC
−
−
VCC = 2.3 V to 2.7 V
1.7
−
−
1.7
−
−
VCC = 2.7 V to 3.6 V
2.0
−
−
2.0
−
−
VCC = 1.2 V
−
−
0.12
−
−
0.12
VCC = 1.65 V to 1.95 V
−
−
0.35 x
VCC
−
−
0.35 x
VCC
VCC = 2.3 V to 2.7 V
−
−
0.7
−
−
0.7
VCC = 2.7 V to 3.6 V
−
−
0.8
−
−
0.8
V
VI = VIH or VIL
IO = −100 mA;
VCC = 1.65 V to 3.6 V
VCC −
0.2
−
−
VCC −
0.3
−
−
IO = −4 mA; VCC = 1.65 V
1.2
−
−
1.05
−
−
IO = −8 mA; VCC = 2.3 V
1.8
−
−
1.65
−
−
IO = −12 mA; VCC = 2.7 V
2.2
−
−
2.05
−
−
IO = −18 mA; VCC = 3.0 V
2.4
−
−
2.25
−
−
IO = −24 mA; VCC = 3.0 V
2.2
−
−
2.0
−
−
V
VI = VIH or VIL
LOW−level output voltage
V
IO = 100 mA;
VCC = 1.65 V to 3.6 V
−
−
0.2
−
−
0.3
IO = 4 mA; VCC = 1.65 V
−
−
0.45
−
−
0.65
IO = 8 mA; VCC = 2.3 V
−
−
0.6
−
−
0.8
IO = 12 mA; VCC = 2.7 V
−
−
0.4
−
−
0.6
IO = 24 mA; VCC = 3.0 V
−
−
0.55
−
−
0.8
Input leakage current
VI = 5.5 V or GND;
VCC = 3.6 V
−
±0.1
±5
−
±0.1
±20
mA
IOZ
OFF−state output current
VI = VIH or VIL;
VO = 5.5 V or GND;
VCC = 3.6 V
−
±0.1
±5
−
±0.1
±20
mA
IOFF
Power−off leakage current
VI or VO = 5.5 V; VCC = 0.0 V
−
±0.1
±10
−
±0.1
±20
mA
ICC
Supply current
VI = VCC or GND; IO = 0 A;
VCC = 3.6 V
−
0.1
10
−
0.1
40
mA
Additional supply current
per input pin;
VI = VCC − 0.6 V; IO = 0 A;
VCC = 2.7 V to 3.6 V
−
5
500
−
5
5000
mA
II
DICC
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
3. All typical values are measured at TA = 25°C and VCC = 3.3 V, unless stated otherwise.
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4
74LVC373A
AC ELECTRICAL CHARACTERISTICS (tR = tF = 2.5 ns)
−40 to +855C
Symbol
tpd
tpd
ten
tdis
tw
tsu
th
tsk(0)
Parameter
Propagation Delay (Note 5)
Dn to On
Propagation Delay
LE to On
Enable Time (Note 6)
OE to On
Disable Time (Note 7)
OE to On
Pulse Width
LE HIGH
Set−up Time
On to LE
Hold Time
On to LE
−40 to +1255C
Conditions
Min
Typ
(Note 4)
Max
Min
Typ
(Note 4)
Max
VCC = 1.2 V
−
14.0
−
−
−
−
VCC = 1.65 V to 1.95 V
1.5
6.5
15.8
1.5
−
18.2
VCC = 2.3 V to 2.7 V
1.0
3.4
8.2
1.0
−
9.4
VCC = 2.7 V
1.5
3.4
7.8
1.5
−
10.0
VCC = 3.0 V to 3.6 V
1.5
2.9
6.8
1.5
−
8.5
VCC = 1.2 V
−
16.0
−
−
−
−
VCC = 1.65 V to 1.95 V
2.2
7.3
16.8
2.2
−
19.3
VCC = 2.3 V to 2.7 V
1.5
3.9
8.6
1.5
−
10.0
VCC = 2.7 V
1.5
3.5
8.2
1.5
−
10.5
VCC = 3.0 V to 3.6 V
1.5
3.3
7.2
1.5
−
9.0
VCC = 1.2 V
−
17.0
−
−
−
−
VCC = 1.65 V to 1.95 V
1.5
6.8
17.6
1.5
−
20.3
VCC = 2.3 V to 2.7 V
1.5
3.8
9.7
1.5
−
11.2
VCC = 2.7 V
1.5
3.8
8.7
1.5
−
11.0
VCC = 3.0 V to 3.6 V
1.5
3.1
7.7
1.5
−
10.0
VCC = 1.2 V
−
8.0
−
−
−
−
VCC = 1.65 V to 1.95 V
1.5
4.3
10.3
1.5
−
11.9
VCC = 2.3 V to 2.7 V
1.0
2.4
5.8
1.0
−
6.8
VCC = 2.7 V
1.5
3.2
7.1
1.5
−
9.0
VCC = 3.0 V to 3.6 V
1.5
3.0
6.1
1.5
−
8.0
VCC = 1.65 V to 1.95 V
5.0
−
−
5.0
−
−
VCC = 2.3 V to 2.7 V
4.0
−
−
4.0
−
−
VCC = 2.7 V
3.0
−
−
3.0
−
−
VCC = 3.0 V to 3.6 V
3.0
1.5
−
3.0
−
−
VCC = 1.65 V to 1.95 V
4.0
−
−
4.0
−
−
VCC = 2.3 V to 2.7 V
3.0
−
−
3.0
−
−
VCC = 2.7 V
2.0
−
−
2.0
−
−
VCC = 3.0 V to 3.6 V
2.0
0.0
−
2.0
−
−
VCC = 1.65 V to 1.95 V
3.0
−
−
3.0
−
−
VCC = 2.3 V to 2.7 V
2.0
−
−
2.0
−
−
VCC = 2.7 V
1.5
−
−
1.5
−
−
VCC = 3.0 V to 3.6 V
1.5
0.3
−
1.5
−
−
−
−
1.0
−
−
1.5
Output Skew Time (Note 8)
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
4. Typical values are measured at TA = 25°C and VCC = 3.3 V, unless stated otherwise.
5. tpd is the same as tPLH and tPHL.
6. ten is the same as tPZL and tPZH.
7. tdis is the same as tPLZ and tPHZ.
8. Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design.
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5
74LVC373A
DYNAMIC SWITCHING CHARACTERISTICS
TA = +25°C
Symbol
Characteristic
Condition
Min
Typ
Max
Unit
VOLP
Dynamic LOW Peak Voltage
(Note 9)
VCC = 3.3 V, CL = 50 pF, VIH = 3.3 V, VIL = 0 V
VCC = 2.5 V, CL = 30 pF, VIH = 2.5 V, VIL = 0 V
0.8
0.6
V
VOLV
Dynamic LOW Valley Voltage
(Note 9)
VCC = 3.3 V, CL = 50 pF, VIH = 3.3 V, VIL = 0 V
VCC = 2.5 V, CL = 30 pF, VIH = 2.5 V, VIL = 0 V
−0.8
−0.6
V
9. 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
CIN
COUT
CPD
Parameter
Condition
Typical
Unit
Input Capacitance
VCC = 3.3 V, VI = 0 V or VCC
5.0
pF
Output Capacitance
VCC = 3.3 V, VI = 0 V or VCC
6.0
pF
Power Dissipation Capacitance
(Note 10)
VCC = 1.65 V to 1.95 V
16.6
VCC = 2.3 V to 2.7 V
19.2
VCC = 3.0 V to 3.6 V
21.6
10. CPD is used to determine the dynamic power dissipation (PD in mW).
P D + C PD
V CC
2
fi
N ) SǒC L
pF
Per flip−flop; VI = GND or VCC
V CC
2
foǓ where:
fi = input frequency in MHz; fo = output frequency in MHz
CL = output load capacitance in pF
VCC = supply voltage in Volts
N = number of outputs switching
∑(CL x VCC2 x fo) = sum of the outputs
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6
74LVC373A
VCC
OE
Vmi
Vmi
VCC
Dn
Vmi
0V
tPZH
Vmi
On
0V
tPLH
tPHZ
VOH
VHZ
Vmo
tPHL
VOH
On
Vmo
tPZL
Vmo
tPLZ
VOL
Vmo
On
VLZ
VOL
WAVEFORM 1 − PROPAGATION DELAYS
tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns
WAVEFORM 2 − OUTPUT ENABLE AND DISABLE TIMES
tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns
2.7 V
Dn
1.5 V
VCC
0V
ts
th
2.7 V
LE
1.5 V
tw
1.5 V
0V
tPLH, tPHL
VOH
On
Symbol
3.3 V ± 0.3 V
2.7 V
VCC < 2.7 V
Vmi
1.5 V
1.5 V
VCC/2
Vmo
1.5 V
1.5 V
VCC/2
VHZ
VOL + 0.3 V
VOL + 0.3 V
VOL + 0.15 V
VLZ
VOH − 0.3 V
VOH − 0.3 V
VOH − 015 V
1.5 V
VOL
WAVEFORM 3 − LE to On PROPAGATION DELAYS, LE MINIMUM
PULSE WIDTH, Dn to LE SETUP AND HOLD TIMES
tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns except when noted
Figure 3. AC Waveforms
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7
74LVC373A
VCC
R1
PULSE
GENERATOR
DUT
RT
CL
6V
OPEN
GND
RL
C
L includes jig and probe capacitance
RT = ZOUT of pulse generator (typically 50 W)
R1 = RL
Supply Voltage
Input
VEXT
Load
VCC (V)
VI
tr, tf
CL
RL
tPLH, tPHL
tPLZ, tPZL
tPHZ, tPZH
1.2
VCC
≤ 2 ns
30 pF
1 kW
Open
2 x VCC
GND
1.65 − 1.95
VCC
≤ 2 ns
30 pF
1 kW
Open
2 x VCC
GND
2.3 − 2.7
VCC
≤ 2 ns
30 pF
500 W
Open
2 x VCC
GND
2.7
2.7 V
≤ 2.5 ns
50 pF
500 W
Open
2 x VCC
GND
3.0 − 3.6
2.7 V
≤ 2.5 ns
50 pF
500 W
Open
2 x VCC
GND
Figure 4. Test Circuit
ORDERING INFORMATION
Device
74LVC373ADTR2G
Package
Shipping†
TSSOP−20
(Pb−Free)
2500 / Tape & Reel
†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.
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8
74LVC373A
PACKAGE DIMENSIONS
TSSOP−20
DT SUFFIX
CASE 948E−02
ISSUE C
20X
0.15 (0.006) T U
K REF
0.10 (0.004)
S
M
T U
S
V
S
K
K1
2X
L/2
20
ÍÍÍÍ
ÍÍÍÍ
ÍÍÍÍ
11
J J1
B
−U−
L
PIN 1
IDENT
SECTION N−N
1
10
0.25 (0.010)
N
0.15 (0.006) T U
S
M
A
−V−
NOTES:
1. DIMENSIONING AND TOLERANCING
PER ANSI Y14.5M, 1982.
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.
6. TERMINAL NUMBERS ARE SHOWN
FOR REFERENCE ONLY.
7. DIMENSION A AND B ARE TO BE
DETERMINED AT DATUM PLANE −W−.
N
F
DETAIL E
−W−
C
G
D
H
DETAIL E
0.100 (0.004)
−T− SEATING
PLANE
DIM
A
B
C
D
F
G
H
J
J1
K
K1
L
M
SOLDERING FOOTPRINT*
7.06
1
0.65
PITCH
16X
0.36
16X
1.26
DIMENSIONS: MILLIMETERS
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
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9
MILLIMETERS
MIN
MAX
6.40
6.60
4.30
4.50
--1.20
0.05
0.15
0.50
0.75
0.65 BSC
0.27
0.37
0.09
0.20
0.09
0.16
0.19
0.30
0.19
0.25
6.40 BSC
0_
8_
INCHES
MIN
MAX
0.252
0.260
0.169
0.177
--0.047
0.002
0.006
0.020
0.030
0.026 BSC
0.011
0.015
0.004
0.008
0.004
0.006
0.007
0.012
0.007
0.010
0.252 BSC
0_
8_
74LVC373A
ON Semiconductor and the
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC) or its subsidiaries in the United States and/or other countries.
SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed
at www.onsemi.com/site/pdf/Patent−Marking.pdf. SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation
or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets
and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each
customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended,
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