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74VHCT240AT Datasheet(PDF) 1 Page - STMicroelectronics

Part # 74VHCT240AT
Description  OCTAL BUS BUFFER WITH 3 STATE OUTPUTS INVERTED
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

74VHCT240AT Datasheet(HTML) 1 Page - STMicroelectronics

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74VHCT240A
OCTAL BUS BUFFER
WITH 3 STATE OUTPUTS (INVERTED)
August 1999
s
HIGH SPEED: tPD = 5 ns (TYP.) at VCC =5V
s
LOW POWER DISSIPATION:
ICC =4
µA (MAX.) at TA =25 oC
s
COMPATIBLE WITH TTL OUTPUTS:
VIH =2V (MIN), VIL = 0.8V (MAX)
s
POWER DOWN PROTECTION ON INPUTS &
OUTPUTS
s
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH|=IOL = 8 mA (MIN)
s
BALANCED PROPAGATION DELAYS:
tPLH
≅ tPHL
s
OPERATING VOLTAGE RANGE:
VCC (OPR) = 4.5V to 5.5V
s
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 240
s
IMPROVED LATCH-UP IMMUNITY
s
LOW NOISE: VOLP = 0.9V (Max.)
DESCRIPTION
The 74VHCT240A is an advanced high-speed
CMOS
OCTAL
BUS
BUFFER
(3-STATE)
fabricated with sub-micron silicon gate and
double-layer metal wiring C
2MOS technology.
G output enable governs four BUS BUFFERs.
This device is designed to be used with 3 state
memory address drivers, etc.
Power down protection is provided on all inputs
and outputs and 0 to 7V can be accepted on
inputs with no regard to the supply voltage. This
device can be used to interface 5V to 3V.
All inputs
and
outputs are
equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES :
74VHCT240AM
74VHCT240AT
M
(Micro Package)
T
(TSSOP Package)
®
1/8


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