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Toshiba Electronic Components Datasheet

TC74LCX240FK Datasheet

Low-Voltage Octal Bus Buffer

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TC74LCX240F/FK
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74LCX240F, TC74LCX240FK
Low-Voltage Octal Bus Buffer (inverted) with 5-V Tolerant Inputs and Outputs
The TC74LCX240 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 74LCX240 is an inverting 3-state buffer having two active-low
output enables. 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)
Ouput 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.) 240 type
TC74LCX240F
TC74LCX240FK
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
1994-03
2018-08-02


Toshiba Electronic Components Datasheet

TC74LCX240FK Datasheet

Low-Voltage Octal Bus Buffer

No Preview Available !

Pin Assignment (top view)
1
1A1 2
3
1A2 4
5
1A3 6
7
1A4 8
9
GND 10
20 VCC
19
18
17 2A4
16
15 2A3
14
13 2A2
12
11 2A1
IEC Logic Symbol
TC74LCX240F/FK
1
EN
2
18
1A1
1A2
1A3
1A4
4
6
8
16
14
12
19
EN
2A1
2A2
2A3
2A4
11
13
15
17
9
7
5
3
Truth Table
Inputs
OE
An
L
L
L
H
H
X
X: Don’t care
Z: High impedance
Outputs
H
L
Z
Absolute Maximum Ratings (Note 1)
Characteristics
Symbol
Rating
Unit
Power supply voltage
DC input voltage
DC output voltage
Input diode current
Output diode current
DC output current
Power dissipation
DC VCC/ground current
Storage temperature
VCC
VIN
VOUT
IIK
IOK
IOUT
PD
ICC/IGND
Tstg
0.5 to 7.0
V
0.5 to 7.0
V
0.5 to 7.0 (Note 2)
0.5 to VCC + 0.5
V
(Note 3)
50
mA
±50 (Note 4) mA
±50
mA
180
mW
±100
mA
65 to 150
°C
Note 1:
Note 2:
Note 3:
Note 4:
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).
Output in OFF state
High or low state. IOUT absolute maximum rating must be observed.
VOUT < GND, VOUT > VCC
© 2018
2
Toshiba Electronic Devices & Storage Corporation
2018-08-02


Part Number TC74LCX240FK
Description Low-Voltage Octal Bus Buffer
Maker Toshiba Semiconductor
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TC74LCX240FK Datasheet PDF






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