MC74AC240 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.
• 3−State Outputs Drive Bus Lines or Buffer Memory Address
Registers
• Outputs Source/Sink 24 mA
• ′ACT240 Has TTL Compatible Inputs
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)
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
(Pins 3, 5, 7, 9)
LL
H
LH
L
HX
Z
NOTE:
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
http://onsemi.com
20
1
20
1
20
1
20
1
PDIP−20
N SUFFIX
CASE 738
SO−20
DW SUFFIX
CASE 751D
TSSOP−20
DT SUFFIX
CASE 948E
EIAJ−20
M SUFFIX
CASE 967
ORDERING INFORMATION
Device
Package
Shipping^†
MC74AC240N
PDIP−20 18 Units/Rail
MC74ACT240N
PDIP−20 18 Units/Rail
MC74AC240DW
SOIC−20 38 Units/Rail
MC74AC240DWR2 SOIC−20 1000 Tape & Reel
MC74ACT240DW SOIC−20 38 Units/Rail
MC74ACT240DWR2 SOIC−20 1000 Tape & Reel
MC74AC240DTR2 TSSOP−20 2500 Tape & Reel
MC74ACT240DTR2 TSSOP−20 2500 Tape & Reel
MC74AC240MEL
EIAJ−20 2000 Tape & Reel
MC74ACT240MEL EIAJ−20 2000 Tape & Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 5 of this data sheet.
© Semiconductor Components Industries, LLC, 2004
1
July, 2004 − Rev. 6
Publication Order Number:
MC74AC240/D