Advanced CMOS TTL Input – 74ACT240

Octal 3-State Inverting Buffer / Line Driver / Line Receiver in bare die form

Rev 1.1

30/11/21



Outputs Source/Sink 24mA



Low input current: 1µA



Inputs directly accept TTL



Outputs directly interface CMOS, NMOS and TTL

Die Size (Unsawn)

1750 x 1700

69 x 67

µm

mils

Minimum Bond Pad Size

130 x 130

5.12 x 5.12

µm

mils

Die Thickness

350 (±20)

13.78 (±0.79)

µm

mils

Top Metal Composition

Al 1%Si 1.1µm

Back Metal Composition

N/A – Bare Si



Operating voltage range: 4.5V to 5.5V



Function compatible with 74FCT240 & 74LS240



Lower power alternative to Bipolar or BiCMOS logic



For non-inverting version pleae see 74ACT244

Features:

Ordering Information

Description

Die Dimensions in µm (mils)

The 74ACT240 is produced on a 1.5µm 5V CMOS process

combining high speed LSTTL performance with CMOS low

power. The device can be used as two 4-bit buffers or one

8-bit buffer & features inverting inputs with two output

enables, each controlling four of the 3-state outputs. The

device is designed to improve performance & density in

clock drivers, 3-state memory address drivers & bus

orientated transmitters and receivers. Device inputs directly

accept TTL without use of pull-up resistors. Inputs are also

equipped with protection circuits against static discharge

and transient excess voltage.

The following part suffixes apply:



No suffix - MIL-STD-883 /2010B Visual Inspection

For High Reliability versions of this product please see

1750 (69)

54ACT240

Supply Formats:

Mechanical Specification



Default – Die in Waffle Pack (100 per tray capacity)



Sawn Wafer on Tape – On request



Unsawn Wafer – On request



Die Thickness <> 350µm(14 Mils) – On request



Assembled into Ceramic Package – On request

Page 1 of 6

www.siliconsupplies.com