Fairchild DM74ALS174SJ Hex/quad d-type flip-flops with clear Datasheet

Revised February 2000
DM74ALS174 • DM74ALS175
Hex/Quad D-Type Flip-Flops with Clear
General Description
Features
These positive-edge-triggered flip-flops utilize TTL circuitry
to implement D-type flip-flop logic. Both have an asynchronous clear input, and the quad (DM74ALS175) version features complementary outputs from each flip-flop.
■ Advanced oxide-isolated ion-implanted Schottky TTL
process
Information at the D inputs meeting the setup time requirements is transferred to the Q outputs on the positive-going
edge of the clock pulse. Clock triggering occurs at a particular 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.
■ Switching performance guaranteed over full temperature
and VCC supply range
■ Pin and functional compatible with LS family counterpart
■ Typical clock frequency maximum is 80 MHz
Ordering Code:
Ordering Code
Package Number
Package Description
DM74ALS174M
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
DM74ALS174SJ
M16D
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
DM74ALS174N
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
DM74ALS175M
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
DM74ALS175SJ
M16D
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
DM74ALS175N
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagrams
DM74ALS174
© 2000 Fairchild Semiconductor Corporation
DM74ALS175
DS006112
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DM74ALS174 • DM74ALS175 Hex/Quad D-Type Flip-Flops with Clear
September 1986
DM74ALS174 • DM74ALS175
Function Table
Inputs
Outputs
Clear
Clock
D
Q
Q (Note 1)
L
X
X
L
H
H
↑
H
H
L
H
↑
L
L
H
H
L
X
Q0
Q0
H = HIGH Level (steady state)
L = LOW Level (steady state)
X = Don’t Care
↑ = Transition from LOW-to-HIGH Level
Q0 = the level of Q before the indicated steady-state input conditions were established
Note 1: applies to DM74ALS175 only
Logic Diagrams
DM74ALS174
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DM74ALS175
2
Supply Voltage
7V
Input Voltage
7V
0°C to +70°C
Operating Free Air Temperature Range
Note 2: 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.
−65°C to +150°C
Storage Temperature Range
Typical θJA
N Package
77.9°C/W
M Package
107.3°C/W
Recommended Operating Conditions
Symbol
Parameter
Min
Nom
Max
Units
4.5
5
5.5
V
LOW Level Input Voltage
0.8
V
VCC
Supply Voltage
VIH
HIGH Level Input Voltage
VIL
2
V
IOH
HIGH Level Output Current
−0.4
mA
IOL
LOW Level Output Current
8
mA
tW
Pulse Width
Clock
10
HIGH or LOW
tSETUP
Setup Time (Note 3)
Clear LOW
10
Data Input
10↑
Clear
ns
ns
6↑
Inactive State
tHOLD
Data Hold Time (Note 3)
0↑
fCLOCK
Clock Frequency
0
50
MHz
ns
TA
Free Air Operating Temperature
0
70
°C
Note 3: The symbol ↑ indicates that the rising edge of the clock is used as reference.
3
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DM74ALS174 • DM74ALS175
Absolute Maximum Ratings(Note 2)
DM74ALS174 • DM74ALS175
Electrical Characteristics
over recommended operating free air temperature range. All typical values are measured at VCC = 5V, TA = 25°C.
Symbol
Parameter
Conditions
VIK
Input Clamp Voltage
VCC = 4.5V, IIN = −18 mA
VOH
HIGH Level
IOH = −400 µA
Output Voltage
VCC = 4.5V to 5.5V
VOL
LOW Level
Output Voltage
II
Input Current at
Max Input Voltage
Min
Typ
VCC − 2
VCC = 4.5V
IOL = 8 mA
Max
Units
−1.5
V
VCC − 1.6
V
0.35
VCC = 5.5V, VIN = 7V
0.5
V
0.1
mA
IIH
HIGH Level Input Current
VCC = 5.5V, VIH = 2.7V
20
µA
IIL
LOW Level Input Current
VCC = 5.5V, VIN = 0.4V
−0.1
mA
IO
Output Drive Current
VCC = 5.5V, VO = 2.25V
−112
mA
ICC
Supply Current
VCC = 5.5V
−30
Clock = 4.5V
DM74ALS174
11
19
DM74ALS175
8
14
mA
Clear = GND
D Input = GND
Switching Characteristics
over recommended operating free air temperature range
Symbol
Parameter
Conditions
fMAX
Maximum Clock Frequency
RL = 500Ω
tPLH
Propagation Delay Time
CL = 50 pF
LOW-to-HIGH Level
VCC = 4.5V to 5.5V
Min
Max
50
Units
MHz
5
18
ns
8
23
ns
3
15
ns
5
17
ns
Output From Clear (175 Only)
tPHL
Propagation Delay Time
HIGH-to-LOW Level
Output From Clear
tPLH
Propagation Delay Time
LOW-to-HIGH Level
Output From Clock
tPHL
Propagation Delay Time
HIGH-to-LOW Level
Output From Clock
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4
DM74ALS174 • DM74ALS175
Physical Dimensions inches (millimeters) unless otherwise noted
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
Package Number M16A
5
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DM74ALS174 • DM74ALS175
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
Package Number M16D
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6
DM74ALS174 • DM74ALS175 Hex/Quad D-Type Flip-Flops with Clear
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Package Number N16E
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and
Fairchild reserves the right at any time without notice to change said circuitry and specifications.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD
SEMICONDUCTOR CORPORATION. As used herein:
2. A critical component in any component of a life support
device or system whose failure to perform can be reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the
body, or (b) support or sustain life, and (c) whose failure
to perform when properly used in accordance with
instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the
user.
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7
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