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LVCC3245A

更新时间： 2024-11-16 03:51:59
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德州仪器 - TI 总线收发器输出元件
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18页 378K
描述
OCTAL BUS TRANSCEIVER WITH ADJUSTABLE OUTPUT VOLTAGE AND 3-STATE OUTPUTS

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LVCC3245A 数据手册

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SN74LVCC3245A  
OCTAL BUS TRANSCEIVER  
WITH ADJUSTABLE OUTPUT VOLTAGE AND 3-STATE OUTPUTS  
www.ti.com  
SCAS585O–NOVEMBER 1996–REVISED MARCH 2005  
FEATURES  
DB, DBQ, DW, NS, OR PW PACKAGE  
(TOP VIEW)  
•
Bidirectional Voltage Translator  
•
2.3 V to 3.6 V on A Port and 3 V to 5.5 V on B  
Port  
1
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
V
DIR  
V
CCB  
CCA  
2
NC  
OE  
B1  
B2  
B3  
•
•
•
Control Inputs VIH/VIL Levels Are Referenced  
to VCCA Voltage  
3
A1  
A2  
A3  
A4  
A5  
A6  
A7  
A8  
4
Latch-Up Performance Exceeds 250 mA Per  
JESD 17  
5
6
ESD Protection Exceeds JESD 22  
– 2000-V Human-Body Model (A114-A)  
– 200-V Machine Model (A115-A)  
7
B4  
8
B5  
B6  
B7  
B8  
9
10  
11  
12  
– 1000-V Charged-Device Model (C101)  
GND  
GND  
GND  
NC - No internal connection  
DESCRIPTION/ORDERING INFORMATION  
This 8-bit (octal) noninverting bus transceiver contains two separate supply rails. The B port is designed to track  
VCCB, which accepts voltages from 3 V to 5.5 V, and the A port is designed to track VCCA, which operates at 2.3  
V to 3.6 V. This allows for translation from a 3.3-V to a 5-V system environment and vice versa, from a 2.5-V to a  
3.3-V system environment and vice versa.  
The SN74LVCC3245A 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 device so the buses are  
effectively isolated. The control circuitry (DIR, OE) is powered by VCCA  
.
ORDERING INFORMATION  
TA  
PACKAGE(1)  
Tube of 25  
ORDERABLE PART NUMBER  
TOP-SIDE MARKING  
SN74LVCC3245ADW  
SN74LVCC3245ADWR  
SN74LVCC3245ANSR  
SN74LVCC3245ADBR  
SN74LVCC3245ADBQR  
SN74LVCC3245APW  
SN74LVCC3245APWR  
SN74LVCC3245APWT  
SOIC – DW  
LVCC3245A  
Reel of 2000  
Reel of 2000  
Reel of 2000  
SOP – NS  
LVCC3245A  
LH245A  
SSOP – DB  
–40°C to 85°C  
SSOP (QSOP) – DBQ Reel of 2500  
Tube of 60  
LVCC3245A  
TSSOP – PW  
Reel of 2000  
Reel of 250  
LH245A  
(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at  
www.ti.com/sc/package.  
FUNCTION TABLE  
(EACH TRANSCEIVER)  
INPUTS  
OPERATION  
OE  
L
DIR  
L
B data to A bus  
A data to B bus  
Isolation  
L
H
H
X
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 © 1996–2005, 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.  
1234567...18

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