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SN74AVCH16T245_07

更新时间： 2024-09-16 05:17:39
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德州仪器 - TI 总线收发器输出元件
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21页 581K
描述
16-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

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SN74AVCH16T245_07 数据手册

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SCES587B − AUGUST 2004 − REVISED APRIL 2005  
DGG OR DGV PACKAGE  
(TOP VIEW)  
D
D
Control Inputs V /V Levels Are  
IH IL  
Referenced to V  
Voltage  
CCA  
V
Isolation Feature − If Either V  
Input  
CC  
CC  
1DIR  
1B1  
1B2  
GND  
1B3  
1B4  
1OE  
1A1  
1A2  
GND  
1A3  
1A4  
1
48  
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30  
29  
28  
27  
26  
25  
Is at GND, Both Ports Are in the  
High-Impedance State  
2
3
D
D
Overvoltage-Tolerant Inputs/Outputs Allow  
Mixed-Voltage-Mode Data Communications  
4
5
Fully Configurable Dual-Rail Design Allows  
Each Port to Operate Over the Full 1.2-V to  
3.6-V Power-Supply Range  
6
V
V
7
CCB  
1B5  
CCA  
1A5  
1A6  
GND  
1A7  
1A8  
2A1  
2A2  
GND  
2A3  
2A4  
8
1B6  
GND  
1B7  
1B8  
2B1  
2B2  
GND  
2B3  
2B4  
D
I
Supports Partial-Power-Down Mode  
9
off  
Operation  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
D
I/Os Are 4.6-V Tolerant  
D
Bus Hold on Data Inputs Eliminates the  
Need for External Pullup/Pulldown  
Resistors  
D
D
Latch-Up Performance Exceeds 100 mA Per  
JESD 78, Class II  
ESD Protection Exceeds JESD 22  
− 8000-V Human-Body Model (A114-A)  
− 200-V Machine Model (A115-A)  
V
V
CCB  
2B5  
CCA  
2A5  
2A6  
GND  
2A7  
2A8  
2OE  
2B6  
GND  
2B7  
2B8  
2DIR  
− 1000-V Charged-Device Model (C101)  
description/ordering information  
This 16-bit noninverting bus transceiver uses two  
separate configurable power-supply rails. The  
SN74AVCH16T245 is optimized to operate with  
V
V
/V  
set at 1.4 V to 3.6 V. It is operational with V  
accepts any supply voltage from 1.2 V to 3.6 V. The B port is designed to track V  
/V  
as low as 1.2 V. The A port is designed to track  
CCA CCB  
CCA CCB  
. V  
. V  
accepts  
CCA CCA  
CCB CCB  
any supply voltage from 1.2 V to 3.6 V. This allows for universal low-voltage bidirectional translation between  
any of the 1.2-V, 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes.  
The SN74AVCH16T245 is designed for asynchronous communication between data buses. The device  
transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the  
direction-control (DIR) input. The output-enable (OE) input can be used to disable the outputs so the buses are  
effectively isolated.  
The SN74AVCH16T245 is designed so that the control pins (1DIR, 2DIR, 1OE, and 2OE) are supplied by V  
.
CCA  
ORDERING INFORMATION  
ORDERABLE  
PART NUMBER  
TOP-SIDE  
MARKING  
†
T
PACKAGE  
TSSOP − DGG  
A
Tape and reel SN74AVCH16T245GR  
Tape and reel SN74AVCH16T245VR  
AVCH16T245  
WJ245  
TVSOP − DGV  
−40°C to 85°C  
VFBGA − GQL  
SN74AVCH16T245KR  
Tape and reel  
WJ245  
VFBGA − ZQL (Pb-free)  
74AVCH16T245ZQLR  
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are  
available at www.ti.com/sc/package.  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
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Copyright 2005, Texas Instruments Incorporated  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...21

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