Bus Buffer. TC74LCXZ240FT Datasheet

TC74LCXZ240FT Buffer. Datasheet pdf. Equivalent

TC74LCXZ240FT Datasheet
Recommendation TC74LCXZ240FT Datasheet
Part TC74LCXZ240FT
Description Low Voltage Octal Bus Buffer
Feature TC74LCXZ240FT; TC74LCXZ240FT/FK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74LCXZ240FT, TC74LCXZ2.
Manufacture Toshiba
Datasheet
Download TC74LCXZ240FT Datasheet




Toshiba TC74LCXZ240FT
TC74LCXZ240FT/FK
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74LCXZ240FT, TC74LCXZ240FK
Low Voltage Octal Bus Buffer with 5 V Tolerant Inputs and Outputs
The TC74LCXZ240 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.
When Power supply voltage is turned on, turned off or VCC is
between 0 to 1.5V, output will be at high impedance.
For operation at (3.3 V) VCC, hot board insertion is applicable.
The TC74LCXZ240 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.
TC74LCXZ240FT
TC74LCXZ240FK
Features
Low-voltage operation: VCC = 2.7 to 3.6 V
High-speed operation: tpd = 6.5 ns (max) (VCC = 3.0 to 3.6 V)
Output current: IOH = −24 mA (min) /IOL = 36 mA (min)
(VCC = 3.0V)
Available in 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.) 240 type
Weight
TSSOP20-P-0044-0.65A
VSSOP20-P-0030-0.50
: 0.08 g ( typ.)
: 0.03 g ( typ.)
Start of commercial production
2011-03
1
2014-03-01



Toshiba TC74LCXZ240FT
Pin Assignment (top view)
1OE 1
1A1 2
2Y4 3
1A2 4
2Y3 5
1A3 6
2Y2 7
1A4 8
2Y1 9
GND 10
Truth Table
Inputs
OE
An
L
L
L
H
H
X
X: Don’t care
Z: High impedance
20 VCC
19 2OE
18 1Y1
17 2A4
16 1Y2
15 2A3
14 1Y3
13 2A2
12 1Y 4
11 2A1
Outputs
H
L
Z
TC74LCXZ240FT/FK
IEC Logic Symbol
1OE
EN
2
1A1
4
1A2
6
1A3
8
1A4
18
1Y1
16
1Y 2
14
1Y3
12
1Y 4
19
2OE
EN
11
2A1
13
2A2
15
2A3
17
2A4
9
2 Y1
7
2Y2
5
2Y3
3
2Y4
2
2014-03-01



Toshiba TC74LCXZ240FT
TC74LCXZ240FT/FK
Absolute Maximum Ratings (Note1)
Characteristics
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
Symbol
VCC
VIN
VOUT
IIK
IOK
IOUT
PD
ICC/IGND
Tstg
Rating
Unit
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:
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. IOUT absolute maximum rating must be observed.
Note 4: VOUT < GND, VOUT > VCC
Operating Ranges (Note1)
Characteristics
Symbol
Rating
Unit
Power supply voltage
Input voltage
Output voltage
Output current
Operating temperature
Input rise and fall time
Power-up ramp rate
VCC
VIN
VOUT
IOH/IOL
Topr
dt/dv
dt/dVCC
2.7 to 3.6
0 to 5.5
0 to 5.5 (Note 2)
0 to VCC (Note 3)
24/36 (Note 4)
12/18 (Note 5)
40 to 85
0 to 10 (Note 6)
150 (min)
V
V
V
mA
°C
ns/V
μs/V
Note 1: The operating ranges must be maintained to ensure the normal operation of the device.
Unused inputs must be tied to either VCC or GND.
Note 2: Output in off-state
Note 3: High or low state.
Note 4: VCC = 3.0 to 3.6 V
Note 5: VCC = 2.7 to 3.0 V
Note 6: VIN = 0.8 to 2.0 V, VCC = 3.0 V
3
2014-03-01







@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)