OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

TC74LCX540FK(EL,K)

P1-P3P4-P6P7-P9P10-P11
TC74LCX540F/FT/FK
2014-03-01
1
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74LCX540F, TC74LCX540FT, 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) V
CC
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
1OE
or
2OE
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: V
CC
= 1.65 to 3.6 V
• High-speed operation: t
pd
= 6.5 ns (max) (V
CC
= 3.0 to 3.6 V)
• Output current: |I
OH
|/I
OL
= 24 mA (min) (V
CC
= 3.0 V)
• Latch-up performance: >±500 mA
• Available in JEITA SOP, TSSOP and 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
W
Weight:
SOP20-P-300-1.27A : 0.22 g (typ.)
TSSOP20-P-0044-0.65A : 0.08 g (typ.)
VSSOP20-P-0030-0.50 : 0.03 g (typ.)
Note: The Electrical Characteristics of V
CC
=1.8±0.15V is only applicable for products which manufactured
from January 2009 onward.
TC74LCX540F
TC74LCX540FT
TC74LCX540FK
Start of commercial production
1995-02
TC74LCX540F/FT/FK
2014-03-01
2
Pin Assignment
(top view)
IEC Logic Symbol
Truth Table
Inputs
1OE 2OE An
Outputs
H X X Z
X H X Z
L L H L
L L L H
X: Don’t care
Z: High impedance
V
CC
20
2OE
19
18
17
16
15
14
1OE
1
2
3
4
5
6
7
A1
A2
A3
A4
A5
A6
8
9
10
A7
A8
GND
13
12
11
8Y
1Y
2Y
3Y
4Y
Y5
Y6
7Y
2OE
(19)
(2)
(4)
(3)
A8
A2
A1
(6)
(5)
(8)
(7)
(9)
A3
A6
A5
A7
(18)
(16)
(14)
(12)
8Y
2Y
4Y
6Y
(17)
(15)
(13)
1Y
3Y
5Y
EN
(11)
7Y
A4
1OE
&
(1)
TC74LCX540F/FT/FK
2014-03-01
3
Absolute Maximum Ratings (Note 1)
Characteristics Symbol Rating Unit
Power supply voltage V
CC
−0.5 to 7.0 V
DC input voltage V
IN
−0.5 to 7.0 V
−0.5 to 7.0 (Note 2)
DC output voltage V
OUT
−0.5 to V
CC
+ 0.5
(Note 3)
V
Input diode current I
IK
−50 mA
Output diode current I
OK
±50 (Note 4) mA
DC output current I
OUT
±50 mA
Power dissipation P
D
180 mW
DC V
CC
/ground current I
CC
/I
GND
±100 mA
Storage temperature T
stg
−65 to 150 °C
Note 1: Exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in IC performance or
even destruction.
Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the
significant change in temperature, etc.) may cause this product to decrease in the reliability significantly
even if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute
maximum ratings and the operating ranges.
Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook
(“Handling Precautions”/“Derating Concept and Methods”) and individual reliability data (i.e. reliability test
report and estimated failure rate, etc).
Note 2: Output in OFF state
Note 3: High or low state. I
OUT
absolute maximum rating must be observed.
Note 4: V
OUT
< GND, V
OUT
> V
CC
Operating Ranges (Note 1)
Characteristics Symbol Rating Unit
1.65 to 3.6
Power supply voltage V
CC
1.5 to 3.6 (Note 2)
V
Input voltage V
IN
0 to 5.5 V
0 to 5.5 (Note 3)
Output voltage V
OUT
0 to V
CC
(Note 4)
V
±24 (Note 5)
Output current I
OH
/I
OL
±12 (Note 6)
mA
Operating temperature T
opr
−40 to 85 °C
Input rise and fall time dt/dv 0 to 10 (Note 7) ns/V
Note 1: The operating ranges must be maintained to ensure the normal operation of the device.
Unused inputs must be tied to either V
CC
or GND.
Note 2: Data retention only
Note 3: Output in OFF state
Note 4: High or low state
Note 5: V
CC
= 3.0 to 3.6 V
Note 6: V
CC
= 2.7 to 3.0 V
Note 7: V
IN
= 0.8 to 2.0 V, V
CC
= 3.0 V
P1-P3P4-P6P7-P9P10-P11

TC74LCX540FK(EL,K)

Mfr. #:
Buy TC74LCX540FK(EL,K)
Manufacturer:
Toshiba
Description:
Buffers & Line Drivers CMOS Logic IC 6.5ns 24mA 1.65 to 3.6V
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet