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74VHCT139AMTR датащи(PDF) 1 Page - STMicroelectronics

номер детали 74VHCT139AMTR
подробное описание детали  DUAL 2 TO 4 DECODER/DEMULTIPLEXER
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
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74VHCT139AMTR датащи(HTML) 1 Page - STMicroelectronics

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74VHCT139A
DUAL 2 TO 4 DECODER/DEMULTIPLEXER
PRELIMINARY DATA
March 2000
s
HIGH SPEED: tPD = 7.2 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 139
s
IMPROVED LATCH-UP IMMUNITY
DESCRIPTION
The 74VHCT139A is an advanced high-speed
CMOS
DUAL
2
TO
4
LINE
DECODER/
DEMULTIPLEXER fabricated with sub-micron
silicon gate and double-layer metal wiring C
2MOS
technology.
The active low enable input can be used for
gating or as a data input for demultiplexing
applications. While the enable input is held high,
all four outputs are high independently of the
other inputs.
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
®
SOP
TSSOP
ORDER CODES
PACKAGE
T UBE
T & R
SOP
74VHCT139AM
74VHCT139AMTR
TSSOP
74VHCT139ATTR
1/8


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