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74LS573 PDF даташит

Спецификация 74LS573 изготовлена ​​​​«Fairchild Semiconductor» и имеет функцию, называемую «Octal D-Type Latch with 3-STATE Outputs».

Детали детали

Номер произв 74LS573
Описание Octal D-Type Latch with 3-STATE Outputs
Производители Fairchild Semiconductor
логотип Fairchild Semiconductor логотип 

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74LS573 Даташит, Описание, Даташиты
October 1988
Revised March 2000
DM74LS573
Octal D-Type Latch with 3-STATE Outputs
General Description
The DM74LS573 is a high speed octal latch with buffered
common Latch Enable (LE) and buffered common Output
Enable (OE) inputs.
This device is functionally identical to the DM74LS373, but
has different pinouts.
Features
s Inputs and outputs on opposite sides of package allow-
ing easy interface with microprocessors
s Useful as input or output port for microprocessors
s Functionally identical to DM74LS373
s Input clamp diodes limit high speed termination effects
s Fully TTL and CMOS compatible
Ordering Code:
Order Number Package Number
Package Description
DM74LS573WM
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
DM74LS573N
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
Pin Descriptions
Function Tables
Pin Names
D0–D7
Data Inputs
Description
Output
Latch
Output
D
Enable
Enable
O
LE Latch Enable Input (Active HIGH)
L HHH
OE 3-STATE Output Enable Input (Active LOW)
L
H
L
L
O0–O7 3-STATE Latch Outputs
L L X QO
HX X Z
L = LOW State
H = HIGH State
X = Don't Care
Z = High Impedance State
QO = Previous Condition of O
© 2000 Fairchild Semiconductor Corporation DS009814
www.fairchildsemi.com









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74LS573 Даташит, Описание, Даташиты
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
Parameter
Supply Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Input Current
LOW Level Output Current
Free Air Operating Temperature
Min
4.75
2
Nom
5
0
Electrical Characteristics
Over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Min
VI Input Clamp Voltage
VCC = Min, II = −18 mA
VOH HIGH Level
VCC = Min, IOH = Max,
Output Voltage
VIL = Max
VOL LOW Level
VCC = Min, IOL = Max,
Output Voltage
VIH = Min
IOL = 4 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
IOS Short Circuit
VCC = Max
Output Current
(Note 3)
2.7
30
ICC
IOZH
Supply Current
3-STATE Output
OFF Current HIGH
IOZL 3-STATE Output
OFF Current LOW
Note 2: All typicals are at VCC = 5V, TA = 25°C.
VCC = Max
VCC = VCCH
VOZH = 2.7V
VCC = VCCH
VOZL = 0.4V
Note 3: Not more than one output should be shorted at a time, and the duration should not exceed one second.
Max
5.25
0.8
2.6
24
70
Units
V
V
V
mA
mA
°C
Typ
(Note 2)
3.4
Max
1.5
0.35
0.25
0.5
0.4
1
20
0.4
130
50
20
20
Units
V
V
V
mA
µA
mA
mA
mA
µA
µA
www.fairchildsemi.com
2









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74LS573 Даташит, Описание, Даташиты
Switching Characteristics
at VCC = 5V and TA = 25°C
Symbol
Parameter
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tS(H)
tS(L)
tH(H)
tH(L)
tW(H)
Propagation Delay
Data to Q
Propagation Delay
LE to Q
3-STATE Enable Time
OE to Q
3-STATE Enable Time
OE to Q
Setup Time (HIGH/LOW)
Data to LE
Hold Time (HIGH/LOW)
Data to LE
Pulse Width (HIGH)
Data to LE
RL = 2 k,
CL = 50 pF
Min Max
27
18
36
25
20
25
20
25
3
7
10
10
15
Units
ns
ns
ns
ns
ns
ns
ns
3 www.fairchildsemi.com










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