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SN74LVC374A-Q1 Datasheet Preview

SN74LVC374A-Q1 Datasheet

Octal Edge-Triggered D-Type Flip-Flop

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SN74LVC374A-Q1
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOP
WITH 3-STATE OUTPUTS
SCAS711B – SEPTEMBER 2003 – REVISED FEBRUARY 2008
FEATURES
1
Qualified for Automotive Applications
ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
Operates From 2 V to 3.6 V
Inputs Accept Voltages to 5.5 V
Max tpd of 8.5 ns at 3.3 V
Typical VOLP (Output Ground Bounce) < 0.8 V
at VCC = 3.3 V, TA = 25°C
Typical VOHV (Output VOH Undershoot) > 2 V
at VCC = 3.3 V, TA = 25°C
Supports Mixed-Mode Signal Operation on All
Ports (5-V Input/Output Voltage With 3.3-V VCC)
Ioff Supports Partial-Power-Down Mode
Operation
DW OR PW PACKAGE
(TOP VIEW)
OE 1
1Q 2
1D 3
2D 4
2Q 5
3Q 6
3D 7
4D 8
4Q 9
GND 10
20 VCC
19 8Q
18 8D
17 7D
16 7Q
15 6Q
14 6D
13 5D
12 5Q
11 CLK
DESCRIPTION/ORDERING INFORMATION
The SN74LVC374A octal edge-triggered D-type flip-flop is designed for 2.7-V to 3.6-V VCC operation.
This device features 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance
loads. This device is particularly suitable for implementing buffer registers, input/output (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 the high-impedance state. In the high-impedance state, the outputs neither load nor drive the
bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines
without 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.
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in
a mixed 3.3-V/5-V system environment.
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.
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.
TA
–40°C to 125°C
SOIC – DW
TSSOP – PW
ORDERING INFORMATION(1)
PACKAGE (2)
ORDERABLE PART NUMBER
Reel of 2000
SN74LVC374AQDWRQ1
Reel of 2000
SN74LVC374AQPWRQ1
TOP-SIDE MARKING
L374AQ1
L374AQ1
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
1
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.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2003–2008, Texas Instruments Incorporated




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SN74LVC374A-Q1 Datasheet Preview

SN74LVC374A-Q1 Datasheet

Octal Edge-Triggered D-Type Flip-Flop

No Preview Available !

SN74LVC374A-Q1
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOP
WITH 3-STATE OUTPUTS
SCAS711B – SEPTEMBER 2003 – REVISED FEBRUARY 2008
FUNCTION TABLE
(EACH FLIP-FLOP)
INPUTS
OUTPUT
OE
CLK
D
Q
L
H
H
L
L
L
L
H or L
X
Q0
H
X
X
Z
OE 1
LOGIC DIAGRAM (POSITIVE LOGIC)
CLK 11
3
1D
C1
1D
2
1Q
To Seven Other Channels
www.ti.com
2
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Copyright © 2003–2008, Texas Instruments Incorporated
Product Folder Link(s): SN74LVC374A-Q1



Part Number SN74LVC374A-Q1
Description Octal Edge-Triggered D-Type Flip-Flop
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Total Page 3 Pages
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