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74AHCT16244DGGRE4 Folha de dados(PDF) 9 Page - Texas Instruments

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Nome de Peças 74AHCT16244DGGRE4
Descrição Electrónicos  16-Bit Buffers/Drivers With 3-State Outputs
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Fabricante Electrônico  TI1 [Texas Instruments]
Página de início  http://www.ti.com
Logo TI1 - Texas Instruments

74AHCT16244DGGRE4 Folha de dados(HTML) 9 Page - Texas Instruments

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1Y1
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1Y3
1Y4
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2Y1
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3A1
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3Y1
3Y2
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3Y4
4A1
4A2
4A3
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4Y1
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1OE
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3OE
4OE
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SN74AHCT16244
www.ti.com
SCLS334J – MARCH 1996 – REVISED OCTOBER 2014
9 Detailed Description
9.1 Overview
The SN74AHCT16244 device is a 16-bit buffer and line driver specifically designed to improve the performance
and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. This
device can be used as a four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer. It provides true outputs and
symmetrical active-low output-enable (OE) inputs. To ensure the high-impedance state during power up or power
down, OE should be tied to VCC through a pullup resistor. The minimum value of the resistor is determined by the
current-sinking capability of the driver. The SN74AHCT16244 is characterized for operation from –40°C to
125°C.
9.2 Functional Block Diagram
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
Figure 3.
9.3 Feature Description
VCC is optimized at 5 V
Allows up voltage translation from 3.3 V to 5 V
Inputs accept VIH levels of 2 V
Slow edge rates minimize output ringing
Inputs are TTL-voltage compatible
9.4 Device Functional Modes
Table 1. Function Table
(Each 4-bit Buffer/Driver)
INPUTS
OUTPUT
Y
OE
A
L
H
H
L
L
L
H
X
Z
Copyright © 1996–2014, Texas Instruments Incorporated
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