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PDF 74AC374 Data sheet ( Hoja de datos )
| Número de pieza | 74AC374 | |
| Descripción | OCTAL D-TYPE FLIP-FLOP WITH 3-STATE OUTPUTS | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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MC74AC374, MC74ACT374
Octal D−Type Flip−Flop with
3−State 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.
Features
• 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
• Pb−Free Packages are Available
VCC O7
D7
D6
O6
O5
D5
D4
O4
CP
www.DataSheet4U.com
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
Figure 1. Pinout: 20 Lead Packages Conductors
(Top View)
PIN ASSIGNMENT
PIN FUNCTION
D0−D7
CP
Data Inputs
Clock Pulse Input
OE 3−State Output Enable Input
O0−O7
3−State Outputs
http://onsemi.com
1
1
PDIP−20
N SUFFIX
CASE 738
SOIC−20W
DW SUFFIX
CASE 751D
TSSOP−20
DT SUFFIX
CASE 948E
1
SOEIAJ−20
M SUFFIX
CASE 967
1
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 6 of this data sheet.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.
D0 D1 D2 D3 D4 D5 D6 D7
CP
OE
O0 O1 O2 O3 O4 O5 O6 O7
Figure 2. Logic Symbol
© Semiconductor Components Industries, LLC, 2006
November, 2006 − Rev. 8
1
Publication Order Number:
MC74AC374/D
1 page  
MC74AC374, MC74ACT374
DC CHARACTERISTICS
Symbol
Parameter
VIH Minimum High Level
Input Voltage
VIL Maximum Low Level
Input Voltage
VOH Minimum High Level
Output Voltage
74ACT
74ACT
VCC
(V)
TA = +25°C
TA =
−40°C to +85°C
Typ Guaranteed Limits
4.5 1.5 2.0
5.5 1.5 2.0
2.0
2.0
4.5 1.5 0.8
5.5 1.5 0.8
0.8
0.8
4.5 4.49 4.4
5.5 5.49 5.4
4.4
5.4
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
4.5 − 0.36
5.5 − 0.36
IIN Maximum Input
Leakage Current
5.5 − ±0.1
DICCT Additional Max. ICC/Input
5.5 0.6
−
IOZ Maximum
3-State
Current
5.5 − ±0.5
IOLD
IOHD
†Minimum Dynamic
Output Current
5.5 −
5.5 −
−
−
ICC Maximum Quiescent
Supply Current
5.5 −
*All outputs loaded; thresholds on input associated with output under test.
†Maximum test duration 2.0 ms, one output loaded at a time.
8.0
0.44
0.44
±1.0
1.5
±5.0
75
−75
80
Unit Conditions
V
VOUT = 0.1 V
or VCC − 0.1 V
V
VOUT = 0.1 V
or VCC − 0.1 V
V IOUT = −50 mA
*VIN = VIL or VIH
V IOH −24 mA
−24 mA
V IOUT = 50 mA
*VIN = VIL or VIH
V 24 mA
IOL 24 mA
mA VI = VCC, GND
mA VI = VCC − 2.1 V
VI (OE) = VIL, VIH
mA VI = VCC, GND
VO = VCC, GND
mA VOLD = 1.65 V Max
mA VOHD = 3.85 V Min
mA VIN = VCC or GND
AC CHARACTERISTICS (For Figures and Waveforms − See AND8277/D at www.onsemi.com)
74ACT
74ACT
Symbol
Parameter
VCC*
(V)
TA = +25°C
CL = 50 pF
Min Typ Max
TA = −40°C
to +85°C
CL = 50 pF
Min Max
Maximum Clock
fmax Frequency
5.0 100
160
−
90
−
tPLH
tPHL
tPZH
Propagation Delay
CP to On
Propagation Delay
CP to On
Output Enable Time
5.0 2.0 8.5 10 2.0 11.5
5.0 2.0 8.0 9.5 1.5 11
5.0 2.0 8.0 9.5 1.5 10.5
tPZL Output Enable Time
5.0 1.5 8.0 9.0 1.5 10.5
tPHZ
Output Disable Time
5.0 1.5
8.5 11.5 1.0 12.5
tPLZ Output Disable Time
*Voltage Range 5.0 V is 5.0 V ±0.5 V.
5.0 1.5 7.0 8.5 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
http://onsemi.com
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| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet 74AC374.PDF ] | |
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