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SN74AVC16T245-Q1

更新时间： 2024-09-15 12:22:31
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德州仪器 - TI 总线收发器输出元件
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14页 222K
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16-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

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SN74AVC16T245-Q1 数据手册

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SN74AVC16T245-Q1  
www.ti.com ......................................................................................................................................................................................... SCES778–SEPTEMBER 2008  
16-BIT DUAL-SUPPLY BUS TRANSCEIVER  
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS  
1
FEATURES  
DGV PACKAGE  
(TOP VIEW)  
•
Qualified for Automotive Applications  
•
Control Inputs VIH/VIL Levels Are Referenced to  
VCCA Voltage  
1
48  
47  
46  
45  
44  
43  
42  
41  
40  
39  
38  
37  
36  
35  
34  
33  
32  
31  
30  
29  
28  
27  
26  
25  
1DIR  
1B1  
1B2  
GND  
1B3  
1B4  
1OE  
1A1  
1A2  
GND  
1A3  
1A4  
2
•
VCC Isolation Feature – If Either VCC Input Is at  
GND, Both Ports Are in the High-Impedance  
State  
3
4
5
•
•
Overvoltage-Tolerant Inputs/Outputs Allow  
Mixed-Voltage-Mode Data Communications  
6
7
V
V
CCA  
CCB  
Fully Configurable Dual-Rail Design Allows  
Each Port to Operate Over the Full 1.2-V to  
3.6-V Power-Supply Range  
8
1B5  
1B6  
GND  
1B7  
1B8  
2B1  
2B2  
GND  
2B3  
2B4  
1A5  
1A6  
GND  
1A7  
1A8  
2A1  
2A2  
GND  
2A3  
2A4  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
•
Ioff Supports Partial-Power-Down Mode  
Operation  
•
•
I/Os Are 4.6-V Tolerant  
Max Data Rates  
–
–
–
–
–
380 Mbps (1.8-V to 3.3-V Translation)  
200 Mbps (<1.8-V to 3.3-V Translation)  
200 Mbps (Translate to 2.5 V or 1.8 V)  
150 Mbps (Translate to 1.5 V)  
V
V
CCA  
CCB  
2B5  
2B6  
2A5  
2A6  
GND  
2A7  
2A8  
2OE  
100 Mbps (Translate to 1.2 V)  
•
•
Latch-Up Performance Exceeds 100 mA Per  
JESD 78, Class II  
GND  
2B7  
2B8  
ESD Protection Exceeds JESD 22  
2DIR  
–
–
–
8000-V Human-Body Model (A114-A)  
200-V Machine Model (A115-A)  
1000-V Charged-Device Model (C101)  
DESCRIPTION/ORDERING INFORMATION  
This 16-bit noninverting bus transceiver uses two separate configurable power-supply rails. The  
SN74AVC16T245 is optimized to operate with VCCA/VCCB set at 1.4 V to 3.6 V. It is operational with VCCA/VCCB as  
low as 1.2 V. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.2 V to 3.6 V. The B  
port is designed to track VCCB. VCCB accepts 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 SN74AVC16T245 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  
effectively are isolated.  
The SN74AVC16T245 is designed so that the control pins (1DIR, 2DIR, 1OE, and 2OE) are supplied by VCCA  
.
This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs,  
preventing damaging current backflow through the device when it is powered down.  
1
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.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2008, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
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