INTEGRATED CIRCUITS
74ABT540
Octal buffer, inverting (3-State)
Product specification
Supersedes data of 1996 Oct 08
IC23 Data Handbook
Philips
Semiconductors
1998 Jan 16
Philips Semiconductors
Product specification
Octal buffer, inverting (3-State)
74ABT540
LOGIC SYMBOL (IEEE/IEC)
PIN DESCRIPTION
PIN NUMBER
2, 3, 4, 5,
6, 7, 8, 9
A0 – A7
Data inputs
18, 17, 16, 15,
14, 13, 12, 11
Y0 – Y7
Data outputs
1, 19
1
SYMBOL
OE0, OE1
10
GND
Ground (0V)
20
VCC
Positive supply voltage
&
EN
19
2
18
3
16
5
15
6
14
7
13
8
12
9
Output enables
17
4
NAME AND FUNCTION
11
FUNCTION TABLE
INPUTS
OUTPUTS
OE0
H
L
X
Z
An
Yn
L
L
X
H
SA00199
OE1
L
L
H
X
L
H
X
X
H
L
Z
Z
= High voltage level
= Low voltage level
= Don’t care
= High impedance ”off” state
ABSOLUTE MAXIMUM RATINGS1, 2
SYMBOL
VCC
PARAMETER
CONDITIONS
RATING
UNIT
–0.5 to +7.0
V
–18
mA
–1.2 to +7.0
V
VO < 0
–50
mA
DC supply voltage
IIK
DC input diode current
VI
DC input voltage3
IOK
VI < 0
DC output diode current
VOUT
DC output voltage3
output in Off or High state
–0.5 to +5.5
V
IOUT
DC output current
output in Low state
128
mA
Tstg
Storage temperature range
–65 to 150
°C
NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the
device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability.
2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction
temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150°C.
3. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
1998 Jan 16
3
