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Toshiba Electronic Components Datasheet

TC74LCXZA244FK Datasheet

Low Voltage Octal Bus Buffer

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TC74LCXZA244FT/FK
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74LCXZA244FT, TC74LCXZA244FK
Low Voltage Octal Bus Buffer with 5 V Tolerant Inputs and Outputs
The TC74LCXZA244 is a high-performance CMOS octal bus
buffer. Designed for use in 2.5-V systems, it achieves high-speed
operation while maintaining the CMOS low power dissipation.
The device is designed for low-voltage (2.5 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 (2.5 V) VCC, hot board insertion is applicable.
The TC74LCXZA244 is a non-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.
TC74LCXZA244FT
TC74LCXZA244FK
Features
Low-voltage operation: VCC = 2.3 to 2.7 V
High-speed operation: tpd = 7.0 ns (max) (VCC = 2.3 to 2.7 V)
Output current: IOH = −12 mA (min) / IOL = 18 mA (min)
(VCC = 2.3V)
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.) 244 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 Electronic Components Datasheet

TC74LCXZA244FK Datasheet

Low Voltage Octal Bus Buffer

No Preview Available !

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 1Y4
11 2A1
Outputs
L
H
Z
TC74LCXZA244FT/FK
IEC Logic Symbol
1
1OE
EN
2
1A1
4
1A2
6
1A3
8
1A4
18 1Y1
16 1Y2
14 1Y3
12 1Y4
19
2OE
EN
11
2A1
13
2A2
15
2A3
17
2A4
9 2Y1
7 2Y2
5 2Y3
3 2Y4
2
2014-03-01


Part Number TC74LCXZA244FK
Description Low Voltage Octal Bus Buffer
Maker Toshiba
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