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54ACT373 데이터시트 PDF




National Semiconductor에서 제조한 전자 부품 54ACT373은 전자 산업 및 응용 분야에서
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부품번호 54ACT373 기능
기능 Octal Transparent Latch
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54ACT373 데이터시트, 핀배열, 회로
www.DataSheet4U.com
August 1998
54AC373 54ACT373
Octal Transparent Latch with TRI-STATE® Outputs
General Description
The ’AC/’ACT373 consists of eight latches with TRI-STATE
outputs for bus organized system applications. The flip-flops
appear transparent to the data when Latch Enable (LE) is
HIGH. When LE is LOW, the data that meets the setup time
is latched. Data appears on the bus when the Output Enable
(OE) is LOW. When OE is HIGH, the bus output is in the high
impedance state.
Features
n ICC and IOZ reduced by 50%
n Eight latches in a single package
n TRI-STATE outputs for bus interfacing
n Outputs source/sink 24 mA
n ’ACT373 has TTL-compatible inputs
n Standard Microcircuit Drawing (SMD)
— ’AC373: 5962-87555
— ’ACT373: 5962-87556
Logic Symbols
IEEE/IEC
DS100329-1
Pin Names
D0– D7
LE
OE
O0– O7
Description
Data Inputs
Latch Enable Input
Output Enable Input
TRI-STATE Latch Outputs
DS100329-2
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
FACT® is a registered trademark of Fairchild Semiconductor Corporation.
© 1998 National Semiconductor Corporation DS100329
www.national.com




54ACT373 pdf, 반도체, 판매, 대치품
Absolute Maximum Ratings (Note 1)
Recommended Operating
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage (VCC)
DC Input Diode Current (IIK)
VI = −0.5V
VI = VCC + 0.5V
DC Input Voltage (VI)
DC Output Diode Current (IOK)
VO = −0.5V
VO = VCC + 0.5V
DC Output Voltage (VO)
DC Output Source
or Sink Current (IO)
DC VCC or Ground Current
per Output Pin (ICC or IGND)
Storage Temperature (TSTG)
Junction Temperature (TJ)
CDIP
−0.5V to +7.0V
−20 mA
+20 mA
−0.5V to VCC + 0.5V
−20 mA
+20 mA
−0.5V to VCC + 0.5V
±50 mA
±50 mA
−65˚C to +150˚C
175˚C
Conditions
Supply Voltage (VCC)
’AC
2.0V to 6.0V
’ACT
4.5V to 5.5V
Input Voltage (VI)
Output Voltage (VO)
Operating Temperature (TA)
54AC/ACT
0V to VCC
0V to VCC
−55˚C to +125˚C
Minimum Input Edge Rate (V/t)
’AC Devices
VIN from 30% to 70% of VCC
VCC @ 3.3V, 4.5V, 5.5V
Minimum Input Edge Rate (V/t)
125 mV/ns
’ACT Devices
VIN from 0.8V to 2.0V
VCC @ 4.5V, 5.5V
125 mV/ns
Note 1: Absolute maximum ratings are those values beyond which damage
to the device may occur. The databook specifications should be met, without
exception, to ensure that the system design is reliable over its power supply,
temperature, and output/input loading variables. National does not recom-
mend operation of FACT® circuits outside databook specifications.
DC Characteristics for ’AC Family Devices
Symbol
Parameter
VIH Minimum High
Level Input
Voltage
VIL Maximum Low
Level Input
Voltage
VOH Minimum High
Level Output
Voltage
VOL Maximum Low
Level Output
Voltage
IIN Maximum Input
Leakage Current
54AC
VCC
TA =
Units
(V) −55˚C to +125˚C
Conditions
Guaranteed Limits
3.0 2.1
4.5 3.15
5.5 3.85
VOUT = 0.1V
V or VCC − 0.1V
3.0 0.9
4.5 1.35
5.5 1.65
VOUT = 0.1V
V or VCC − 0.1V
3.0 2.9
4.5 4.4
IOUT = −50 µA
V
5.5 5.4
3.0 2.4
(Note 2)
VIN = VIL or VIH
−12 mA
4.5 3.7
5.5 4.7
V IOH −24 mA
−24 mA
3.0 0.1
4.5 0.1
IOUT = 50 µA
V
5.5 0.1
3.0 0.50
(Note 2)
VIN = VIL or VIH
12 mA
4.5 0.50
5.5 0.50
V IOL 24 mA
24 mA
5.5 ±1.0 µA VI = VCC, GND
www.national.com
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54ACT373 전자부품, 판매, 대치품
AC Electrical Characteristics
Symbol
Parameter
tPLH Propagation Delay
Dn to On
tPHL Propagation Delay
Dn to On
tPLH Propagation Delay
LE to On
tPHL Propagation Delay
LE to On
tPZH Output Enable Time
tPZL Output Enable Time
tPHZ Output Disable Time
tPLZ Output Disable Time
Note 10: Voltage Range 5.0 is 5.0V ±0.5V
VCC
(V)
(Note 10)
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
54ACT
TA = −55˚C
to +125˚C
CL = 50 pF
Min Max
1.5 12.5
1.5 12.5
1.5 12.5
1.5 11.5
1.5 11.5
1.5 11.0
1.5 14.0
1.5 11.0
AC Operating Requirements
Symbol
Parameter
ts Setup Time, HIGH or LOW
Dn to LE
th Hold Time, HIGH or LOW
Dn to LE
tw LE Pulse Width, HIGH
Note 11: Voltage Range 5.0 is 5.0V ±0.5V
VCC
(V)
(Note 11)
5.0
5.0
5.0
54ACT
TA = −55˚C
to +125˚C
CL = 50 pF
Guaranteed
Minimum
8.5
1.0
8.5
Capacitance
Symbol
CIN
CPD
Parameter
Input Capacitance
Power Dissipation Capacitance
Typ
4.5
40.0
Units
pF
pF
Conditions
VCC = OPEN
VCC = 5.0V
Units
ns
ns
ns
ns
ns
ns
ns
ns
Units
ns
ns
ns
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