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Número de pieza | MC74ACT374 | |
Descripción | OCTAL D-TYPE FLIP-FLOP WITH 3-STATE OUTPUTS | |
Fabricantes | Motorola Semiconductors | |
Logotipo | ||
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MC74AC374
MC74ACT374
Octal DĆType FlipĆFlop
with 3ĆState Outputs
The MC74AC374/74ACT374 is a high-speed, low-power octal D-type flip-flop
featuring separate D-type inputs for each flip-flop and 3-state outputs for bus-
oriented applications. A buffered Clock (CP) and Output Enable (OE) are common
to all flip-flops.
• Buffered Positive Edge-Triggered Clock
• 3-State Outputs for Bus-Oriented Applications
• Outputs Source/Sink 24 mA
• See MC74AC273 for Reset Version
• See MC74AC377 for Clock Enable Version
• See MC74AC373 for Transparent Latch Version
• See MC74AC574 for Broadside Pinout Version
• See MC74AC564 for Broadside Pinout Version with Inverted Outputs
• ′ACT374 Has TTL Compatible Inputs
VCC O7 D7 D6 O6 O5 D5 D4 O4 CP
20 19 18 17 16 15 14 13 12 11
1 2 3 4 5 6 7 8 9 10
OE O0 D0 D1 O1 O2 D2 D3 O3 GND
PIN NAMES
D0–D7
CP
OE
O0–O7
Data Inputs
Clock Pulse Input
3-State Output Enable Input
3-State Outputs
TRUTH TABLE
Inputs
Dn CP
H
L
XX
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
= LOW-to-HIGH Transition
Outputs
OE On
LH
LL
HZ
OCTAL D-TYPE
FLIP-FLOP WITH
3-STATE OUTPUTS
N SUFFIX
CASE 738-03
PLASTIC
DW SUFFIX
CASE 751D-04
PLASTIC
LOGIC SYMBOL
D0 D1 D2 D3 D4 D5 D6 D7
CP
OE
O0 O1 O2 O3 O4 O5 O6 O7
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FACT DATA
5-1
1 page www.DataSheet4U.com
MC74AC374 MC74ACT374
DC CHARACTERISTICS
74ACT
74ACT
Symbol
Parameter
VCC
(V)
TA = +25°C
TA =
–40°C to +85°C
Unit
Conditions
Typ Guaranteed Limits
VIH
VIL
VOH
Minimum High Level
Input Voltage
Maximum Low Level
Input Voltage
Minimum High Level
Output Voltage
4.5 1.5 2.0
5.5 1.5 2.0
4.5 1.5 0.8
5.5 1.5 0.8
4.5 4.49 4.4
5.5 5.49 5.4
2.0
2.0
0.8
0.8
4.4
5.4
V
VOUT = 0.1 V
or VCC – 0.1 V
V
VOUT = 0.1 V
or VCC – 0.1 V
V IOUT = –50 µA
VOL
Maximum Low Level
Output Voltage
4.5 3.86
5.5 4.86
4.5 0.001 0.1
5.5 0.001 0.1
3.76
4.76
0.1
0.1
*VIN = VIL or VIH
V
IOH
–24 mA
–24 mA
V IOUT = 50 µA
IIN Maximum Input
Leakage Current
*VIN = VIL or VIH
4.5
5.5
0.36 0.44
0.36 0.44
V
IOL
24 mA
24 mA
5.5
±0.1 ±1.0
µA VI = VCC, GND
∆ICCT
IOZ
IOLD
IOHD
ICC
Additional Max. ICC/Input
Maximum
3-State
Current
†Minimum Dynamic
Output Current
Maximum Quiescent
Supply Current
5.5 0.6
5.5 ±0.5
5.5
5.5
5.5 8.0
1.5
±5.0
75
–75
80
mA VI = VCC – 2.1 V
VI (OE) = VIL, VIH
µA VI = VCC, GND
VO = VCC, GND
mA VOLD = 1.65 V Max
mA VOHD = 3.85 V Min
µA VIN = VCC or GND
* All outputs loaded; thresholds on input associated with output under test.
† Maximum test duration 2.0 ms, one output loaded at a time.
AC CHARACTERISTICS (For Figures and Waveforms — See Section 3)
74ACT
Symbol
Parameter
VCC*
(V)
TA = +25°C
CL = 50 pF
fmax
Maximum Clock
Frequency
tPLH
Propagation Delay
CP to On
tPHL
Propagation Delay
CP to On
tPZH
Output Enable Time
tPZL
Output Enable Time
tPHZ
Output Disable Time
tPLZ
Output Disable Time
* Voltage Range 5.0 V is 5.0 V ±0.5 V.
Min Typ Max
5.0 100 160
5.0 2.0 8.5 10
5.0 2.0 8.0 9.5
5.0 2.0 8.0 9.5
5.0 1.5 8.0 9.0
5.0 1.5 8.5 11.5
5.0 1.5 7.0 8.5
74ACT
TA = –40°C
to +85°C
CL = 50 pF
Min Max
90
2.0 11.5
1.5 11
1.5 10.5
1.5 10.5
1.0 12.5
1.0 10
Unit
MHz
ns
ns
ns
ns
ns
ns
Fig.
No.
3-3
3-6
3-6
3-7
3-8
3-7
3-8
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FACT DATA
5-5
5 Page |
Páginas | Total 7 Páginas | |
PDF Descargar | [ Datasheet MC74ACT374.PDF ] |
Número de pieza | Descripción | Fabricantes |
MC74ACT373 | Octal Transparent Latch | ON Semiconductor |
MC74ACT374 | OCTAL D-TYPE FLIP-FLOP WITH 3-STATE OUTPUTS | Motorola Semiconductors |
MC74ACT374 | Octal D-Type Flip-Flop | ON Semiconductor |
MC74ACT377 | Octal D Flip-Flop | ON Semiconductor |
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