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PDF TC74LCX16244FT Data sheet ( Hoja de datos )
| Número de pieza | TC74LCX16244FT | |
| Descripción | Low-Voltage 16-Bit Bus Buffer with 5-V Tolerant Inputs and Outputs | |
| Fabricantes | Toshiba Semiconductor | |
| Logotipo |  |
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TC74LCX16244FT
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74LCX16244FT
Low-Voltage 16-Bit Bus Buffer with 5-V Tolerant Inputs and Outputs
The TC74LCX16244FT is a high-performance CMOS 16-bit bus
buffer. Designed for use in 2.5-V or 3.3-V systems, it achieves
high-speed operation while maintaining the CMOS low power
dissipation.
The device is designed for low-voltage (2.5-V or 3.3-V) VCC
applications, but it could be used to interface to 5 V supply
environment for both inputs and outputs.
This device is non-inverting 3-state buffer having four
active-low output enables. It can be used as four 4-bit buffers two
8-bit buffers or one 16-bit buffer. When the OE input is high, the
outputs are in a high-impedance state. This device is designed to
Weight: 0.25 g (typ.)
be used with 3-state memory address drivers, etc.
All inputs are equipped with protection circuits against static discharge.
Features
· Low-voltage operation: VCC = 2.0 to 3.6 V
· High-speed operation: tpd = 4.5 ns (max) (VCC = 3.0 to 3.6 V)
· Output current: |IOH|/IOL = 24 mA (min) (VCC = 3.0 V)
www.DataSheet4U.com· Latch-up performance: ±500 mA
· Package: TSSOP (thin shrink small outline package)
· Power-down protection provided on all inputs and outputs
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1 2002-10-1
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Electrical Characteristics
DC Characteristics (Ta = -40 to 85°C)
TC74LCX16244FT
Characteristics
Symbol
Test Condition
Min
VCC (V)
Input voltage
H-level
L-level
VIH
VIL
2.3 to 2.7 1.7
¾
2.7 to 3.6 2.0
2.3 to 2.7 ¾
¾
2.7 to 3.6 ¾
IOH = -100 mA
2.3 to 3.6
VCC
-0.2
H-level
VOH VIN = VIH or VIL
IOH = -8 mA
IOH = -12 mA
2.3
2.7
IOH = -18 mA
3.0
Output voltage
IOH = -24 mA
3.0
IOL = 100 mA
2.3 to 3.6
IOL = 8 mA
2.3
L-level
VOL VIN = VIH or VIL
IOL = 12 mA
2.7
IOL = 16 mA
3.0
IOL = 24 mA
3.0
Input leakage current
IIN VIN = 0 to 5.5 V
2.3 to 3.6
VIN = VIH or VIL
3-state output off-state current
IOZ
2.3 to 3.6
VOUT = 0 to 5.5 V
www.DataSheet4U.comPower off leakage current
IOFF VIN/VOUT = 5.5 V
0
Quiescent supply current
VIN = VCC or GND
ICC
VIN/VOUT = 3.6 to 5.5 V
2.3 to 3.6
2.3 to 3.6
Increase in Icc per input
DICC VIH = VCC - 0.6 V
2.3 to 3.6
1.8
2.2
2.4
2.2
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
Max
¾
¾
0.7
0.8
¾
¾
¾
¾
¾
0.2
0.6
0.4
0.4
0.55
±5.0
±5.0
10.0
20.0
±20.0
500
Unit
V
V
mA
mA
mA
mA
AC Characteristics (Ta = -40 to 85°C)
Characteristics
Propagation delay time
3-state output enable time
3-state output disable time
Output to output skew
Symbol
Test Condition
tpLH
Figure 1, Figure 2
tpHL
Min Max Unit
VCC (V) CL(pF)
2.5 ± 0.2 30
1.5 5.4
2.7
50
1.5 5.2
ns
3.3 ± 0.3 50
1.5 4.5
tpZL
Figure 1, Figure 3
2.5 ± 0.2
2.7
30
50
1.5 7.2
1.5 6.3
ns
tpZH
tpLZ
Figure 1, Figure 3
3.3 ± 0.3
2.5 ± 0.2
2.7
50
30
50
1.5 5.5
1.5 6.5
1.5 5.7
ns
tpHZ
tosLH
3.3 ± 0.3
2.5 ± 0.2
(Note 11) 2.7
50
30
50
1.5 5.4
¾¾
¾¾
ns
tosHL
3.3 ± 0.3 50
¾ 1.0
Note 11: Parameter guaranteed by design.
(tosLH = |tpLHm - tpLHn|, tosHL = |tpHLm - tpHLn|)
5 2002-10-1
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