MC74AC240_15 Datasheet, PDF (1/8 Pages) ON Semiconductor – Octal Buffer/Line Driver with 3-State Outputs

MC74AC240, MC74ACT240
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
• These are Pb−Free Devices
TRUTH TABLE
Inputs
Outputs
OE₁ D (Pins 12, 14, 16, 18)
LL
H
LH
L
HX
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
www.onsemi.com
SOIC−20W
DW SUFFIX
CASE 751D
1
TSSOP−20
DT SUFFIX
CASE 948E
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.
V_CC 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, 2015
1
February, 2015 − Rev. 9
Publication Order Number:
MC74AC240/D