SCLS500A − MAY 2003 − REVISED MAY 2004
D Controlled Baseline
D
D
D
D
D
D
D
D Ioff Supports Partial-Power-Down Mode
− One Assembly/Test Site, One Fabrication
Site
Extended Temperature Performance of
−40°C to 105°C
Enhanced Diminishing Manufacturing
Sources (DMS) Support
Enhanced Product-Change Notification
Qualification Pedigree†
Typical VOLP (Output Ground Bounce)
2.3 V at VCC = 3.3 V, TA = 25°C
Supports Mixed-Mode Voltage Operation on
All Ports
D
Operation
ESD Protection Exceeds JESD 22
− 2000-V Human-Body Model (A114-A)
− 200-V Machine Model (A115-A)
− 1000-V Charged-Device Model (C101)
PW PACKAGE
(TOP VIEW)
OE
1Q
1D
2D
2Q
3Q
3D
4D
4Q
GND
† Component qualification in accordance with JEDEC and industry
standards to ensure reliable operation over an extended
temperature range. This includes, but is not limited to, Highly
Accelerated Stress Test (HAST) or biased 85/85, temperature
cycle, autoclave or unbiased HAST, electromigration, bond
intermetallic life, and mold compound life. Such qualification
testing should not be viewed as justifying use of this component
beyond specified performance and environmental limits.
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
VCC
8Q
8D
7D
7Q
6Q
6D
5D
5Q
CLK
description/ordering information
The SN74LV374A is an octal edge-triggered D-type flip-flop designed for 2-V to 5.5-V VCC operation.
This device features 3-state outputs designed specifically for driving highly capacitive or relatively
low-impedance loads. It is particularly suitable for implementing buffer registers, I/O ports, bidirectional bus
drivers, and working registers.
On the positive transition of the clock (CLK) input, the Q outputs are set to the logic levels set up at the data (D)
inputs.
A buffered output-enable (OE) input can be used to place the eight outputs in either a normal logic state (high
or low logic levels) or high-impedance state. In the high-impedance state, the outputs neither load nor drive the
bus lines significantly. The high-impedance state and the increased drive provide the capability to drive bus lines
without need for interface or pullup components.
OE does not affect internal operations of the latch. Old data can be retained or new data can be entered while
the outputs are in the high-impedance state.
ORDERING INFORMATION
TA
PACKAGE‡
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
−40°C to 105°C
TSSOP − PW Tape and reel SN74LV374ATPWREP LV374AEP
‡ Package drawings, standard packing quantities, thermal data, symbolization, and PCB design
guidelines are available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright 2004, Texas Instruments Incorporated
! "#$ ! %#&'" ($)
(#"! " !%$""! %$ *$ $! $+! !#$!
!(( ,-) (#" %"$!!. ($! $"$!!'- "'#($
$!. '' %$$!)
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1
SCLS500A − MAY 2003 − REVISED MAY 2004
description/ordering information (continued)
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs,
preventing damaging current backflow through the device when it is powered down.
FUNCTION TABLE
(each flip-flop)
INPUTS
OE
CLK
D
OUTPUT
Q
L
↑
H
H
L
↑
L
L
L
L
X
Q0
H
X
X
Z
logic diagram (positive logic)
OE
CLK
1
11
C1
1D
3
1D
2
1Q
To Seven Other Channels
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V
Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V
Voltage range applied to any output in the high-impedance or
power-off state, VO (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V
Output voltage range, VO (see Notes 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to VCC + 0.5 V
Input clamp current, IIK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −20 mA
Output clamp current, IOK (VO < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −50 mA
Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±35 mA
Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±70 mA
Package thermal impedance, θJA (see Note 3)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83°C/W
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. The input and output negative-voltage ratings may be exceeded if the input and output current ratings are observed.
2. This value is limited to 5.5 V maximum.
3. The package thermal impedance is calculated in accordance with JESD 51-7.
2
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
SCLS500A − MAY 2003 − REVISED MAY 2004
recommended operating conditions (see Note 4)
VCC
VIH
VIL
MAX
2
5.5
Supply voltage
VCC = 2 V
VCC = 2.3 V to 2.7 V
High-level input voltage
VCC = 3 V to 3.6 V
VCC = 4.5 V to 5.5 V
IOH
IOL
∆t/∆v
V
VCC × 0.7
0.5
VCC × 0.3
VCC × 0.3
VCC = 3 V to 3.6 V
VCC = 4.5 V to 5.5 V
0
Output voltage
High or low state
0
3-state
0
VCC × 0.3
5.5
VCC = 2 V
VCC = 2.3 V to 2.7 V
High-level output current
V
VCC
5.5
V
−50
µA
−8
mA
−16
µA
50
VCC = 2.3 V to 2.7 V
VCC = 3 V to 3.6 V
2
VCC = 4.5 V to 5.5 V
VCC = 2.3 V to 2.7 V
16
8
mA
200
VCC = 3 V to 3.6 V
VCC = 4.5 V to 5.5 V
Input transition rise or fall rate
V
−2
VCC = 3 V to 3.6 V
VCC = 4.5 V to 5.5 V
VCC = 2 V
Low-level output current
V
VCC × 0.7
VCC × 0.7
Input voltage
VO
UNIT
1.5
VCC = 2 V
VCC = 2.3 V to 2.7 V
Low-level input voltage
VI
MIN
100
ns/V
20
TA
Operating free-air temperature
−40
105
°C
NOTE 4: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
VOH
VOL
TEST CONDITIONS
IOH = −50 µA
IOH = −2 mA
VCC
2 V to 5.5 V
2.3 V
IOH = −8 mA
IOH = −16 mA
IOL = 50 µA
IOL = 2 mA
VI = 5.5 V or GND
VO = VCC or GND
ICC
Ioff
VI = VCC or GND,
VI or VO = 0 to 5.5 V
Ci
VI = VCC or GND
TYP
UNIT
VCC−0.1
2
3V
2.48
4.5 V
3.8
V
0.1
2.3 V
0.4
3V
0.44
4.5 V
0.55
V
0 to 5.5 V
±1
µA
5.5 V
±5
µA
5.5 V
20
µA
5
µA
IO = 0
0
3.3 V
POST OFFICE BOX 655303
MAX
2 V to 5.5 V
IOL = 8 mA
IOL = 16 mA
II
IOZ
MIN
• DALLAS, TEXAS 75265
2.9
pF
3
SCLS500A − MAY 2003 − REVISED MAY 2004
timing requirements over recommended operating free-air temperature range, VCC = 3.3 V ± 0.3 V
(unless otherwise noted) (see Figure 1)
TA = 25°C
MIN
MAX
tw
Pulse duration, CLK high or low
tsu
Setup time, data before CLK↑
th
Hold time, data after CLK↑
MIN
MAX
UNIT
5
5.5
ns
4.5
4.5
ns
2
2
ns
timing requirements over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V
(unless otherwise noted) (see Figure 1)
TA = 25°C
MIN
MAX
MIN
MAX
UNIT
tw
Pulse duration, CLK high or low
5
5
ns
tsu
Setup time, data before CLK↑
3
3
ns
th
Hold time, data after CLK↑
2
2
ns
switching characteristics over recommended operating
VCC = 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1)
PARAMETER
fmax
tpd
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
free-air
temperature
TA = 25°C
MIN
TYP
MAX
55
110
MIN
MAX
50
CLK
Q
8.3
16.2
1
18.5
OE
Q
7.7
14.5
1
17.5
tdis
tsk(o)
OE
Q
5.9
14
1
16
FROM
(INPUT)
TO
(OUTPUT)
fmax
tpd
CLK
Q
ten
OE
Q
tdis
tsk(o)
OE
Q
4
ns
1.5
switching characteristics over recommended operating
VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
UNIT
MHz
ten
CL = 50 pF
range,
LOAD
CAPACITANCE
free-air
MIN
85
CL = 50 pF
temperature
TA = 25°C
TYP
MAX
170
• DALLAS, TEXAS 75265
MAX
75
UNIT
MHz
5.9
10.1
1
13.5
5.5
9.6
1
13
4
8.8
1
10
1
POST OFFICE BOX 655303
MIN
range,
ns
SCLS500A − MAY 2003 − REVISED MAY 2004
noise characteristics, VCC = 3.3 V, CL = 50 pF, TA = 25°C (see Note 5)
PARAMETER
MIN
TYP
MAX
UNIT
VOL(P)
Quiet output, maximum dynamic VOL
0.6
0.8
V
VOL(V)
Quiet output, minimum dynamic VOL
−0.5
−0.8
V
VOH(V)
Quiet output, minimum dynamic VOH
VIH(D)
High-level dynamic input voltage
VIL(D)
Low-level dynamic input voltage
2.9
V
2.31
V
0.99
V
VCC
3.3 V
TYP
UNIT
5V
22.8
NOTE 5: Characteristics are for surface-mount packages only.
operating characteristics, TA = 25°C
PARAMETER
Cpd
Power dissipation capacitance
TEST CONDITIONS
Outputs enabled
POST OFFICE BOX 655303
CL = 50 pF,
• DALLAS, TEXAS 75265
f = 10 MHz
21.1
pF
5
SCLS500A − MAY 2003 − REVISED MAY 2004
PARAMETER MEASUREMENT INFORMATION
From Output
Under Test
RL = 1 kΩ
From Output
Under Test
Test
Point
S1
VCC
Open
TEST
GND
CL
(see Note A)
CL
(see Note A)
S1
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
Open Drain
Open
VCC
GND
VCC
LOAD CIRCUIT FOR
3-STATE AND OPEN-DRAIN OUTPUTS
LOAD CIRCUIT FOR
TOTEM-POLE OUTPUTS
VCC
50% VCC
Timing Input
tw
tsu
VCC
50% VCC
Input
50% VCC
0V
th
VCC
50% VCC
Data Input
50% VCC
0V
0V
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
VOLTAGE WAVEFORMS
PULSE DURATION
VCC
50% VCC
Input
50% VCC
tPLH
In-Phase
Output
tPHL
50% VCC
tPHL
Out-of-Phase
Output
0V
VOH
50% VCC
VOL
Output
Waveform 1
S1 at VCC
(see Note B)
VOH
50% VCC
VOL
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
INVERTING AND NONINVERTING OUTPUTS
50% VCC
50% VCC
0V
tPLZ
tPZL
≈VCC
50% VCC
Output
Waveform 2
S1 at GND
(see Note B)
VOL + 0.3 V
VOL
tPHZ
tPZH
tPLH
50% VCC
VCC
Output
Control
50% VCC
VOH − 0.3 V
VOH
≈0 V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
LOW- AND HIGH-LEVEL ENABLING
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, ZO = 50 Ω, tr ≤ 3 ns, tf ≤ 3 ns.
D. The outputs are measured one at a time, with one input transition per measurement.
E. tPLZ and tPHZ are the same as tdis.
F. tPZL and tPZH are the same as ten.
G. tPHL and tPLH are the same as tpd.
H. All parameters and waveforms are not applicable to all devices.
Figure 1. Load Circuit and Voltage Waveforms
6
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
PACKAGE OPTION ADDENDUM
www.ti.com
10-Dec-2020
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
(4/5)
(6)
SN74LV374ATPWREP
ACTIVE
TSSOP
PW
20
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 105
LV374AEP
V62/03663-01XE
ACTIVE
TSSOP
PW
20
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 105
LV374AEP
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of