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Número de pieza | TC74LCX540FT | |
Descripción | LOW VOLTAGE OCTAL BUS BUFFER (INVERTER) WITH 5V TOLERANT INPUTS AND OUTPUTS | |
Fabricantes | Toshiba Semiconductor | |
Logotipo | ||
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TC74LCX540F/FW/FT
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74LCX540F,TC74LCX540FW,TC74LCX540FT
Low-Voltage Octal Bus Buffer (inverted) with 5-V Tolerant Inputs and Outputs
The TC74LCX540F/FW/FT 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 TC74LCX540F/FW/FT is an inverting 3-state buffer
having two active-low output enables. When either OE1 or OE2
are high, the terminal outputs are in the high-impedance state.
This device is designed to be used with 3-state memory address
drivers, etc.
All inputs are equipped with protection circuits against static
discharge.
Note: xxxFW (JEDEC SOP) is not available in
Japan.
TC74LCX540F
TC74LCX540FW
Features
· Low-voltage operation: VCC = 2.0 to 3.6 V
· High-speed operation: tpd = 6.5 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
TC74LCX540FT
· Available in JEDEC SOP, JEITA SOP and TSSOP
· Power-down protection provided on all inputs and outputs
· Pin and function compatible with the 74 series
(74AC/VHC/HC/F/ALS/LS etc.) 540 type
Weight
SOP20-P-300-1.27: 0.22 g (typ.)
SOL20-P-300-1.27: 0.46 g (typ.)
TSSOP20-P-0044-0.65: 0.08 g (typ.)
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1 2002-01-11
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AC Test Circuit
Switch
Output
Open
6.0 V
GND
Measure
CL = 50 pF
RL = 500 W
TC74LCX540F/FW/FT
Parameter
tpLH, tpHL
tpLZ, tpZL
tpHZ, tpZH
Switch
Open
6.0 V
GND
Figure 1
AC Waveform
Input
(A)
tf 2.5 ns
tr 2.5 ns
90%
1.5 V
10%
2.7 V
GND
VOH
Output
(Y )
tpLH
1.5 V
tpHL
VOL
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Figure 2 tpLH, tpHL
Output Enable
( OE )
Output ( Y )
Low to Off to Low
Output ( Y )
High to Off to High
tr 2.5 ns
tpLZ
tf 2.5 ns
90%
1.5 V
10%
tpZL
tpHZ
VOL
+ 0.3 V
tpZH
VOH - 0.3 V
Outputs
enabled
Outputs
disabled
1.5 V
1.5 V
Outputs
enabled
Figure 3 tpLZ, tpHZ, tpZL, tpZH
2.7 V
GND
3.0 V
VOL
VOH
GND
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5 Page |
Páginas | Total 9 Páginas | |
PDF Descargar | [ Datasheet TC74LCX540FT.PDF ] |
Número de pieza | Descripción | Fabricantes |
TC74LCX540F | LOW VOLTAGE OCTAL BUS BUFFER (INVERTER) WITH 5V TOLERANT INPUTS AND OUTPUTS | Toshiba Semiconductor |
TC74LCX540FT | LOW VOLTAGE OCTAL BUS BUFFER (INVERTER) WITH 5V TOLERANT INPUTS AND OUTPUTS | Toshiba Semiconductor |
TC74LCX540FW | LOW VOLTAGE OCTAL BUS BUFFER (INVERTER) WITH 5V TOLERANT INPUTS AND OUTPUTS | Toshiba Semiconductor |
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