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부품번호 54AC299 기능
기능 8-Input Universal Shift/Storage Register
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54AC299 데이터시트, 핀배열, 회로
www.DataSheet4U.com
September 1998
54AC299 54ACT299
8-Input Universal Shift/Storage Register with Common
Parallel I/O Pins
General Description
The ’AC/’ACT299 is an 8-bit universal shift/storage register
with TRI-STATE® outputs. Four modes of operation are pos-
sible: hold (store), shift left, shift right and load data. The par-
allel load inputs and flip-flop outputs are multiplexed to re-
duce the total number of package pins. Additional outputs
are provided for flip-flops Q0, Q7 to allow easy serial cascad-
ing. A separate active LOW Master Reset is used to reset the
register.
Features
n ICC and IOZ reduced by 50%
n Common parallel I/O for reduced pin count
n Additional serial inputs and outputs for expansion
n Four operating modes: shift left, shift right, load and
store
n TRI-STATE outputs for bus-oriented applications
n Outputs source/sink 24 mA
n ’ACT299 has TTL-compatible inputs
n Standard Microcircuit Drawing (SMD)
’AC299: 5962-88754
’ACT299: 5962-88771
Ordering Code:
Logic Symbols
Connection Diagrams
Pin Assignment
for DIP and Flatpak
IEEE/IEC
DS100252-1
DS100252-2
Pin Assignment for LCC
DS100252-4
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
FACT® is a registered trademark of Fairchild Semiconductor Corporation.
© 1998 National Semiconductor Corporation DS100252
DS100252-3
www.national.com




54AC299 pdf, 반도체, 판매, 대치품
Absolute Maximum Ratings (Note 1)
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
DC Electrical Characteristics
For ’AC Family Devices
Recommended Operating
Conditions
Supply Voltage (VCC)
(Unless Otherwise Specified)
’AC 2.0V to 6.0V
’ACT
4.5V to 5.0V
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. Obviously 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 recommend operation of FACT® circuits outside databook specifications.
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
4.5 3.7
5.5 4.7
3.0 0.1
4.5 0.1
(Note 2)
VIN = VIL or VIH
V IOH = −12 mA
IOH = −24 mA
IOH = −24 mA
IOUT = 50 µA
V
5.5 0.1
3.0 0.50
4.5 0.50
5.5 0.50
5.5 ±1.0
(Note 2)
VIN = VIL or VIH
IOH = 12 mA
V IOH = 24 mA
IOH = 24 mA
µA VI = VCC, GND
Note 2: All outputs loaded; threshold on input associated with output under test.
www.national.com
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54AC299 전자부품, 판매, 대치품
AC Operating Requirements
Symbol
Parameter
ts Setup Time, HIGH or LOW
S0 or S1 to CP
th Hold Time, HIGH or LOW
S0 or S1 to CP
ts Setup Time, HIGH or LOW
I/On to CP
th Hold Time, HIGH or LOW
I/On to CP
ts Setup Time, HIGH or LOW
DS0 or DS7 to CP
th Hold Time, HIGH or LOW
DS0 or DS7 to CP
tw CP Pulse Width, LOW
tw MR Pulse Width, LOW
trec Recovery Time
MR to CP
Note 10: Voltage Range 3.3 is 3.3V ±0.3V
Voltage Range 5.0 is 5.0V ±0.5V
VCC
(V)
(Note 10)
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
54AC
TA = −55˚C
to +125˚C
CL = 50 pF
Guaranteed
Minimum
9.5
7.0
2.0
2.5
6.0
4.0
1.5
2.0
7.5
5.0
1.5
1.5
5.5
5.0
5.5
5.0
2.5
2.5
AC Electrical Characteristics
Symbol
fmax
tPLH
tPHL
tPLH
tPHL
tPHL
tPHL
Parameter
Maximum Input
Frequency
Propagation Delay
CP to Q0 or Q7
(Shift Left or Right)
Propagation Delay
CP to Q0 or Q7
(Shift Left or Right)
Propagation Delay
CP to I/On
Propagation Delay
CP to I/On
Propagation Delay
MR to Q0 or Q7
Propagation Delay
MR to I/On
VCC
(V)
(Note 11)
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
70
1.0 15.5
1.0 16.0
1.0 15.0
1.0 18.0
1.0 18.0
1.0 17.5
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
Units
MHz
ns
ns
ns
ns
ns
ns
Fig.
No.
Fig.
No.
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부품번호상세설명 및 기능제조사
54AC299

8-Input Universal Shift/Storage Register

National Semiconductor
National Semiconductor

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