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PDF TC74LCX16245AFT Data sheet ( Hoja de datos )
| Número de pieza | TC74LCX16245AFT | |
| Descripción | LOW-VOLTAGE 16-BIT BUS TRANSCEIVER WITH 5V TOLERANT INPUTS AND OUTPUTS | |
| Fabricantes | Toshiba Semiconductor | |
| Logotipo |  |
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TC74LCX16245AFT
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74LCX16245AFT
Low-Voltage 16-Bit Bus Transceiver with 5-V Tolerant Inputs and Outputs
The TC74LCX16245AFT is a high-performance CMOS 16-bit
bus transceiver. 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.
This 16-bit bus transceiver is controlled by direction control
(DIR) inputs and output enable (OE) inputs which are common to
each byte. It can be used as two 8-bit transceiver or one 16-bit
transceiver. The direction of data transmission is determined by
the level of the DIR inputs. The OE inputs can be used to disable
the device so that the busses are effectively isolated.
Weight: 0.25 g (typ.)
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 = 5.2 ns (max) (VCC = 3.0 to 3.6 V)
· Ouput 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)
· Bidirectional interface between 5.0 V and 3.3 V signals
· Power-down protection provided on all inputs and outputs
Note: Do not apply a signal to any bus pins when it is in the output mode. Damage may result.
All floating (high impedance) bus pins must have their input level fixed by means of pull-up or pull-down
resistors.
DataSheet4 U .com
1 2002-01-11
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Electrical Characteristics
DC Characteristics (Ta = -40 to 85°C)
TC74LCX16245AFT
Characteristics
Symbol
Test Condition
Min
VCC (V)
Input voltage
H-level
L-level
VIH
VIL
¾ 2.7 to 3.6 2.0
¾ 2.7 to 3.6 ¾
IOH = -100 mA
2.7 to 3.6
VCC
- 0.2
H-level
VOH VIN = VIH or VIL
IOH = -12 mA
IOH = -18 mA
2.7 2.2
3.0 2.4
Output voltage
IOH = -24 mA
IOL = 100 mA
3.0
2.7 to 3.6
2.2
¾
L-level
VOL VIN = VIH or VIL
IOL = 12 mA
IOL = 16 mA
2.7 ¾
3.0 ¾
IOL = 24 mA
3.0 ¾
Input leakage current
IIN VIN = 0 to 5.5 V
2.7 to 3.6 ¾
3-state output OFF state current
VIN = VIH or VIL
IOZ
VOUT = 0 to 5.5 V
2.7 to 3.6 ¾
Power-off leakage current
IOFF VIN/VOUT = 5.5 V
0¾
Quiescent supply current
VIN = VCC or GND
ICC
VIN/VOUT = 3.6 to 5.5 V
2.7 to 3.6
2.7 to 3.6
¾
¾
www.DataSheet4U.comIncrease in Icc per input
DICC VIH = VCC - 0.6 V
2.7 to 3.6 ¾
Max
¾
0.8
¾
¾
¾
¾
0.2
0.4
0.4
0.55
±5.0
±5.0
10.0
20.0
±20.0
500
Unit
V
V
mA
mA
mA
mA
DataSheet4 U .com
5 2002-01-11
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