74ACT240 Datasheet PDF - ON Semiconductor
Part Number | 74ACT240 | |
Description | Octal Buffer/Line Driver | |
Manufacturers | ON Semiconductor | |
Logo | ||
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Octal Buffer/Line Driver
with 3−State Outputs
The MC74AC240/74ACT240 is an octal buffer and line driver
designed to be employed as a memory address driver, clock driver and
bus oriented transmitter or receiver which provides improved PC
board density.
Features
• 3−State Outputs Drive Bus Lines or Buffer Memory Address
Registers
• Outputs Source/Sink 24 mA
• ′ACT240 Has TTL Compatible Inputs
• Pb−Free Packages are Available
TRUTH TABLE
Inputs
Outputs
OE1 D (Pins 12, 14, 16, 18)
LL
LH
HX
H
L
Z
NOTE:
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
TRUTH TABLE
Inputs
Outputs
OE2 D
LL
LH
HX
(Pins 3, 5, 7, 9)
H
L
Z
NOTE:
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
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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
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 6 of this data sheet.
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 7 of this data sheet.
VCC OE2
20 19 18 17 16 15 14 13 12 11
1 2 3 4 5 6 7 8 9 10
OE1 GND
Figure 1. Pinout: 20−Lead Packages Conductors
(Top View)
© Semiconductor Components Industries, LLC, 2006
November, 2006 − Rev. 8
1
Publication Order Number:
MC74AC240/D
|
|
MC74AC240, MC74ACT240
AC CHARACTERISTICS (For Figures and Waveforms − See Section 3 of the ON Semiconductor FACT Data Book, DL138/D)
74ACT
74ACT
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Symbol
Parameter
VCC*
(V)
TA = +25°C
CL = 50 pF
Min Typ Max
TA = −40°C
to +85°C
CL = 50 pF
Min Max
Unit
Fig.
No.
tPLH Propagation Delay Data to Output
tPHL Propagation Delay Data to Output
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.
5.0 1.5
5.0 1.5
5.0 1.5
5.0 2.0
5.0 2.0
5.0 2.5
6.0 8.5 1.5 9.5
5.5 7.5 1.5 8.5
7.0 8.5 1.0 9.5
7.0 9.5 1.5 10.5
8.0 9.5 2.0 10.5
6.5 10.0 2.0 10.5
ns
ns
ns
ns
ns
ns
3−5
3−5
3−7
3−8
3−7
3−8
CAPACITANCE
Symbol
Parameter
CIN Input Capacitance
CPD Power Dissipation Capacitance
Value
Typ
4.5
45
Unit
pF
pF
Test Conditions
VCC = 5.0 V
VCC = 5.0 V
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Information | Total 10 Pages | |
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