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SN54HC574 Datasheet Preview

SN54HC574 Datasheet

OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOP

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SN54HC574, SN74HC574
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS
WITH 3-STATE OUTPUTS
SCLS148F − DECEMBER 1982 − REVISED AUGUST 2003
D Wide Operating Voltage Range of 2 V to 6 V
D High-Current 3-State Noninverting Outputs
Drive Bus Lines Directly or Up To 15 LSTTL
Loads
D Low Power Consumption, 80-μA Max ICC
D Typical tpd = 22 ns
D ±6-mA Output Drive at 5 V
D Low Input Current of 1 μA Max
D Bus-Structured Pinout
description/ordering information
These octal edge-triggered D-type flip-flops
feature 3-state outputs designed specifically for
bus driving. They are particularly suitable for
implementing buffer registers, I/O ports,
bidirectional bus drivers, and working registers.
SN54HC574 . . . J OR W PACKAGE
SN74HC574 . . . DB, DW, N, NS, OR PW PACKAGE
(TOP VIEW)
OE 1
1D 2
2D 3
3D 4
4D 5
5D 6
6D 7
7D 8
8D 9
GND 10
20 VCC
19 1Q
18 2Q
17 3Q
16 4Q
15 5Q
14 6Q
13 7Q
12 8Q
11 CLK
SN54HC574 . . . FK PACKAGE
(TOP VIEW)
The eight flip-flops enter data on the low-to-high
transition of the clock (CLK) input.
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.
3D
3 2 1 20 19
4
18
2Q
4D 5
17 3Q
5D 6
16 4Q
6D 7
15 5Q
7D 8
14 6Q
9 10 11 12 13
ORDERING INFORMATION
TA
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP − N
Tube of 20
SN74HC574N
SN74HC574N
SOIC − DW
Tube of 25
Reel of 2000
SN74HC574DW
SN74HC574DWR
HC574
−40°C to 85°C
SSOP − DB
SOP − NS
Reel of 2000
Reel of 2000
SN74HC574DBR
SN74HC574NSR
HC574
HC574
Tube of 70
SN74HC574PW
TSSOP − PW
Reel of 2000
Reel of 250
SN74HC574PWR
SN74HC574PWT
HC574
CDIP − J
Tube of 20
SNJ54HC574J
SNJ54HC574J
−55°C to 125°C CFP − W
Tube of 85
SNJ54HC574W
SNJ54HC574W
LCCC − FK
Tube of 55
SNJ54HC574FK
SNJ54HC574FK
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.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright © 2003, Texas Instruments Incorporated
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
1




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SN54HC574 Datasheet Preview

SN54HC574 Datasheet

OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOP

No Preview Available !

SN54HC574, SN74HC574
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS
WITH 3-STATE OUTPUTS
SCLS148F − DECEMBER 1982 − REVISED AUGUST 2003
description/ordering information (continued)
OE does not affect the internal operations of the flip-flops. Old data can be retained or new data can be entered
while the outputs are in the high-impedance state.
FUNCTION TABLE
(each flip-flop)
INPUTS
OE CLK D
OUTPUT
Q
L
H
H
L
L
L
L H or L X
Q0
H
X
X
Z
logic diagram (positive logic)
1
OE
11
CLK
2
1D
C1
1D
19 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 clamp current, IIK (VI < 0 or VI > VCC) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA
Output clamp current, IOK (VO < 0 or VO > VCC) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 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 2): DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70°C/W
DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58°C/W
N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69°C/W
NS package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60°C/W
PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 voltage ratings may be exceeded if the input and output current ratings are observed.
2. The package thermal impedance is calculated in accordance with JESD 51-7.
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265



Part Number SN54HC574
Description OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOP
Maker etcTI
Total Page 3 Pages
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