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DM74LS175N

Part # DM74LS175N
Description Flip Flops Qd D-Type Flip-Flop
Category IC
Availability In Stock
Qty 66
Qty Price
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National Semiconductor Corp
Date Code: 8508
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National Semiconductor Corp
Date Code: 9012
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National Semiconductor Corp
Date Code: 8508
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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

© 2000 Fairchild Semiconductor Corporation DS006404 www.fairchildsemi.com
August 1992
Revised April 2000
DM74LS174 • DM74LS175 Hex/Quad D-Type Flip-Flops with Clear
DM74LS174 • DM74LS175
Hex/Quad D-Type Flip-Flops with Clear
General Description
These positive-edge-triggered flip-flops utilize TTL circuitry
to implement D-type flip-flop logic. All have a direct clear
input, and the quad (175) versions feature complementary
outputs from each flip-flop.
Information at the D inputs meeting the setup time require-
ments is transferred to the Q outputs on the positive-going
edge of the clock pulse. Clock triggering occurs at a partic-
ular voltage level and is not directly related to the transition
time of the positive-going pulse. When the clock input is at
either the HIGH or LOW level, the D input signal has no
effect at the output.
Features
DM74LS174 contains six flip-flops with single-rail
outputs
DM74LS175 contains four flip-flops with double-rail
outputs
Buffered clock and direct clear inputs
Individual data input to each flip-flop
Applications include:
Buffer/storage registers
Shift registers
Pattern generators
Typical clock frequency 40 MHz
Typical power dissipation per flip-flop 14 mW
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagrams
DM74LS174 DM74LS175
Order Number Package Number Package Description
DM74LS174M M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
DM74LS174SJ M16D 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
DM74LS174N N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
DM74LS175M M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
DM74LS175SJ M16D 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
DM74LS175N N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
www.fairchildsemi.com 2
DM74LS174 • DM74LS175
Function Table
(Each Flip-Flop)
H = HIGH Level (steady state)
L = LOW Level (steady state)
X = Don’t Care
= Transition from LOW-to-HIGH level
Q
0
= The level of Q before the indicated steady-state input conditions were established.
= DM74LS175 only
Logic Diagrams
DM74LS174 DM74LS175
Inputs Outputs
Clear Clock D Q Q
LXXLH
H HH L
H LL H
HLXQ
0
Q
0
3 www.fairchildsemi.com
DM74LS174 • DM74LS175
Absolute Maximum Ratings(Note 1)
Note 1: The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
DM74LS174 Recommended Operating Conditions
Note 2: C
L
= 15 pF, R
L
= 2 k, T
A
= 25°C and V
CC
= 5V.
Note 3: C
L
= 50 pF, R
L
= 2 k, T
A
= 25°C and V
CC
= 5V.
Note 4: T
A
= 25°C and V
CC
= 5V.
DM74LS174 Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Note 5: All typicals are at V
CC
= 5V, T
A
= 25°C.
Note 6: Not more than one output should be shorted at a time, and the duration should not exceed one second.
Note 7: With all outputs OPEN and 4.5V applied to all data and clear inputs, I
CC
is measured after a momentary ground, then 4.5V applied to the clock.
Supply Voltage 7V
Input Voltage 7V
Operating Free Air Temperature Range 0°C to +70°C
Storage Temperature Range 65°C to +150°C
Symbol Parameter Min Nom Max Units
V
CC
Supply Voltage 4.75 5 5.25 V
V
IH
HIGH Level Input Voltage 2 V
V
IL
LOW Level Input Voltage 0.8 V
I
OH
HIGH Level Output Current 0.4 mA
I
OL
LOW Level Output Current 8 mA
f
CLK
Clock Frequency (Note 2) 0 30 MHz
f
CLK
Clock Frequency (Note 3) 0 25 MHz
t
W
Pulse Width Clock 20
ns
(Note 4) Clear 20
t
SU
Data Setup Time (Note 4) 20 ns
t
H
Data Hold Time (Note 4) 0 ns
t
REL
Clear Release Time (Note 4) 25 ns
T
A
Free Air Operating Temperature 0 70 °C
Symbol Parameter Conditions Min
Typ
Max Units
(Note 5)
V
I
Input Clamp Voltage V
CC
= Min, I
I
= 18 mA 1.5 V
V
OH
HIGH Level V
CC
= Min, I
OH
= Max
2.7 3.4 V
Output Voltage V
IL
= Max, V
IH
= Min
V
OL
LOW Level V
CC
= Min, I
OL
= Max
0.35 0.5
Output Voltage V
IL
= Max, V
IH
= Min V
I
OL
= 4 mA, V
CC
= Min 0.25 0.4
I
I
Input Current @ Max Input Voltage V
CC
= Max, V
I
= 7V 0.1 mA
I
IH
HIGH Level Input Current V
CC
= Max, V
I
= 2.7V 20 µA
I
IL
LOW Level V
CC
= Max Clock 0.4
Input Current V
I
= 0.4V Clear 0.4 mA
Data 0.36
I
OS
Short Circuit Output Current V
CC
= Max (Note 6) 20 100 mA
I
CC
Supply Current V
CC
= Max (Note 7) 16 26 mA
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