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SN74GTL2003 数据表(PDF) 8 Page - Texas Instruments

部件名 SN74GTL2003
功能描述  8-Bit Bidirectional Low-Voltage Translator
Download  25 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

SN74GTL2003 数据表(HTML) 8 Page - Texas Instruments

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S
REF
D
REF
G
REF
S
1
D
1
S
2
D
2
S
3
D
3
20
2
3
4
5
19
18
17
16
SN74GTL2003
SCDS305B – FEBRUARY 2011 – REVISED JUNE 2015
www.ti.com
8 Detailed Description
8.1 Overview
The SN74GTL2003 device provides eight NMOS pass transistors (Sn and Dn) with a common gate (GREF) and a
reference transistor (SREF and DREF). The low ON-state resistance of the switch allows connections to be made
with minimal propagation delay. With no direction control pin required, the device allows bidirectional voltage
translations any voltage (0.95 V to 5 V) to any voltage (0.95 V to 5 V).
When the Sn or Dn port is LOW, the clamp is in the ON state and a low-resistance connection exists between
the Sn and Dn ports. Assuming the higher voltage is on the Dn port, when the Dn port is HIGH, the voltage on
the Sn port is limited to the voltage set by the reference transistor (SREF). When the Sn port is HIGH, the Dn port
is pulled to VCC by the pullup resistors.
8.2 Functional Block Diagram
8.3 Feature Description
8.3.1 Provides Bidirectional Voltage Translation With No Direction Control Required
Because the circuit acts essentially as a pass transistor, no direction pin is needed, as data is allowed to flow
both ways.
8.3.2 Flow Through Pinout
Allocated pins for input and output A on right side and input and output B on left side. Reduces the need for
multi-layer board layout or long traces through system.
8
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Product Folder Links: SN74GTL2003


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