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Toshiba Electronic Components Datasheet

TC74LCX540FK Datasheet

Low-Voltage Octal Bus Buffer

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TC74LCX540F/FK
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74LCX540F, TC74LCX540FK
Low-Voltage Octal Bus Buffer (inverted) with 5-V Tolerant Inputs and Outputs
The TC74LCX540 is a high-performance CMOS octal bus buffer.
Designed for use in 3.3-V systems, it achieves high-speed operation while
maintaining the CMOS low power dissipation.
The device is designed for low-voltage (3.3 V) VCC applications, but it
could be used to interface to 5 V supply environment for both inputs and
outputs.
The TC74LCX540 is an inverting 3-state buffer having two active-low
output enables. When either OE1 or OE2 are high, the terminal outputs
are in the high-impedance state. This device is designed to be used with 3-
state memory address drivers, etc.
All inputs are equipped with protection circuits against static discharge.
Features
Low-voltage operation: VCC = 1.65 to 3.6 V
High-speed operation: tpd = 6.5 ns (max) (VCC = 3.0 to 3.6 V)
Output current: |IOH|/IOL = 24 mA (min) (VCC = 3.0 V)
Latch-up performance: 500 mA
Available in JEITA SOP, VSSOP (US)
Power-down protection provided on all inputs and outputs
Pin and function compatible with the 74 series
(74AC/VHC/HC/F/ALS/LS etc.) 540 type
TC74LCX540F
TC74LCX540FK
Weight:
SOP20-P-300-1.27A
VSSOP20-P-0030-0.50
: 0.22 g ( typ.)
: 0.03 g ( typ.)
Note: The Electrical Characteristics of VCC = 1.8 ± 0.15 V is only applicable for products which manufactured
from January 2009 onward.
© 2018
1
Toshiba Electronic Devices & Storage Corporation
Start of commercial production
1995-02
2018-08-02


Toshiba Electronic Components Datasheet

TC74LCX540FK Datasheet

Low-Voltage Octal Bus Buffer

No Preview Available !

Pin Assignment (top view)
1
A1 2
A2 3
A3 4
A4 5
A5 6
A6 7
A7 8
A8 9
GND 10
Truth Table
Inputs
OE1
OE 2
An
H
X
X
X
H
X
L
L
H
L
L
L
X: Don’t care
Z: High impedance
20 VCC
19
18
17
16
15
14
13
12
11
Outputs
Z
Z
L
H
IEC Logic Symbol
TC74LCX540F/FK
(1)
&
EN
(19)
(2)
(18)
A1
(3)
(17)
A2
(4)
(16)
A3
(5)
(15)
A4
(6)
(14)
A5
(7)
(13)
A6
(8)
(12)
A7
(9)
(11)
A8
© 2018
2
Toshiba Electronic Devices & Storage Corporation
2018-08-02


Part Number TC74LCX540FK
Description Low-Voltage Octal Bus Buffer
Maker Toshiba Semiconductor
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TC74LCX540FK Datasheet PDF






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