English
Language : 

74FCT540 Datasheet, PDF (2/6 Pages) Integrated Device Technology – FAST CMOS OCTAL BUFFER/LINE DRIVER
IDT74FCT540AT/CT
FAST CMOS OCTAL BUFFER/LINE DRIVER
PIN CONFIGURATION
OEA
D0
D1
D2
D3
D4
D5
D6
D7
GND
1
20
2
19
3
18
4
17
5 SO20-2 16
SO20-7
6 SO20-8 15
7
14
8
13
9
12
10
11
VCC
OEB
O0
O1
O2
O3
O4
O5
O6
O7
SOIC/ SSOP/ QSOP
TOP VIEW
INDUSTRIAL TEMPERATURE RANGE
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
Rating
Max.
Unit
VTERM(2) Terminal Voltage with Respect to GND –0.5 to +7
V
VTERM(3) Terminal Voltage with Respect to GND –0.5 to VCC+0.5 V
TSTG
Storage Temperature
–65 to +150 °C
IOUT
DC Output Current
–60 to +120 mA
8T-link
NOTES:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM
RATINGS may cause permanent damage to the device. This is a
stress rating only and functional operation of the device at these or
any other conditions above those indicated in the operational sections
of this specification is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect reliability. No
terminal voltage may exceed Vcc by +0.5V unless otherwise noted.
2. Inputs and Vcc terminals only.
3. Outputs and I/O terminals only.
CAPACITANCE (TA = +25OC, f = 1.0MHz)
Symbol
Parameter(1)
CIN
Input Capacitance
Conditions
VIN = 0V
Typ. Max. Unit
6
10 pF
COUT
Output Capacitance VOUT = 0V
8
12 pF
8T-link
NOTE:
1. This parameter is measured at characterization but not tested.
PIN DESCRIPTION
Pin Names
OEA, OEB
Dx
Ox
Description
3–State Output Enable Inputs (Active LOW)
Inputs
Outputs
FUNCTION TABLE (1)
Inputs
OEA
OEB
D
L
L
L
L
L
H
H
H
X
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don’t Care
Z = High-Impedance
Outputs
H
L
Z
2