D-Type Flip-Flop. DM74LS574 Datasheet

DM74LS574 Flip-Flop. Datasheet pdf. Equivalent

DM74LS574 Datasheet
Recommendation DM74LS574 Datasheet
Part DM74LS574
Description Octal D-Type Flip-Flop
Feature DM74LS574; DM74LS574 Octal D-Type Flip-Flop with 3-STATE Outputs March 1988 Revised March 2000 DM74LS574 Octa.
Manufacture Fairchild Semiconductor
Datasheet
Download DM74LS574 Datasheet




Fairchild Semiconductor DM74LS574
March 1988
Revised March 2000
DM74LS574
Octal D-Type Flip-Flop with 3-STATE Outputs
General Description
The DM74LS574 is a high speed low power octal flip-flop
with a buffered common Clock (CP) and a buffered com-
mon Output Enable (OE). The information presented to the
D inputs is stored in the flip-flops on the LOW-to-HIGH
Clock (CP) transition.
This device is functionally identical to the DM74LS374
except for the pinouts.
Ordering Code:
Order Number Package Number Package Description
DM74LS574WM M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
DM74LS574N N20A
20-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.
Logic Symbol
Connection Diagram
VCC = Pin 20
GND = Pin 10
Truth Table
Inputs
Dn CP
H
L
XX
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
= HIGH-to-LOW Clock (CP) transition
Outputs
OE On
LH
LL
HZ
© 2000 Fairchild Semiconductor Corporation DS009815
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Fairchild Semiconductor DM74LS574
Functional Description
The DM74LS574 consists of eight edge-triggered flip-flops
with individual D-type inputs and 3-STATE true outputs.
The buffered clock and buffered Outputs Enable are com-
mon to all flip-flops. The eight flip-flops will store the state
of their individual D inputs that meet the setup and hold
times requirements on the LOW-to-HIGH Clock (CP) tran-
sition. With the Output Enable (OE) LOW, the contents of
the eight flip-flops are available at the outputs. When the
OE is HIGH, the outputs go to the high impedance state.
Operation of the OE input does not affect the state of the
flip-flops.
Logic Diagram
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Fairchild Semiconductor DM74LS574
Absolute Maximum Ratings(Note 1)
Supply Voltage
7V
Input Voltage
7V
Operating Free Air Temperature Range 0°C to +70°C
Storage Temperature Range
65°C to +150°C
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.
Recommended Operating Conditions
Symbol
VCC
VIH
VIL
IOH
IOL
TA
tS (H)
tS (L)
tH (H)
tH (L)
tW (H)
tW (L)
Parameter
Supply Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Current
LOW Level Output Current
Free Air Operating Temperature
Setup Time HIGH or LOW
Dn to CP
Hold Time HIGH or LOW
Dn to CP
CP Pulse Width
HIGH or LOW
Min
4.75
2
Nom
5
0
20
20
0
0
15
15
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Min
VI Input Clamp Voltage
VOH HIGH Level
Output Voltage
VOL LOW Level
Output Voltage
VCC = Min, II = −18 mA
VCC = Min, IOH = Max,
VIL = Max, VIH = Min
VCC = Min, IOL = Max,
VIL = Max, VIH = Min
2.4
IOL = 12 mA, VCC = Min
II
Input Current @ Max Input Voltage
VCC = Max, VI = 7V
IIH HIGH Level Input Current
VCC = Max, VI = 2.7V
IIL LOW Level Input Current
VCC = Max, VI = 0.4V
IOZH
OFF-State Output Current with
VCC = Max, VO = 2.4V
HIGH Level Output Voltage Applied
VIH = Min, VIL = Max
IOZL OFF-State Output Current with
VCC = Max, VO = 0.4V
LOW Level Output Voltage Applied
VIH = Min, VIL = Max
IOS Short Circuit Output Current (Note 3) VCC = Max
ICC Supply Current
VCC = Max (Note 4)
30
Note 2: All typicals are at VCC = 5V, TA = 25°C.
Note 3: Not more than one output should be shorted at a time, and the duration should not exceed one second.
Note 4: ICC is measured with the DATA inputs grounded and the OUTPUT CONTROLS at 4.5V.
Max Units
5.25
V
V
0.8 V
2.6
mA
24 mA
70 °C
ns
ns
ns
Typ
(Note 2)
3.3
Max
1.5
0.35 0.5
0.25 0.4
0.1
20
400
20
20
130
45
Units
V
V
V
mA
µA
µA
µA
µA
mA
mA
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