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SN74LVCC4245APWG4

更新时间： 2024-09-09 05:16:59
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德州仪器 - TI 总线收发器输出元件
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17页 434K
描述
OCTAL DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE OUTPUT VOLTAGE AND 3-STATE OUTPUTS

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SN74LVCC4245A  
OCTAL DUAL-SUPPLY BUS TRANSCEIVER  
WITH CONFIGURABLE OUTPUT VOLTAGE AND 3-STATE OUTPUTS  
www.ti.com  
SCAS584M–NOVEMBER 1996–REVISED MARCH 2005  
FEATURES  
DB, DW, NS, OR PW PACKAGE  
(TOP VIEW)  
•
Bidirectional Voltage Translator  
•
4.5 V to 5.5 V on A Port and 2.7 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 uses two separate power-supply rails. The A port, VCCA, is  
dedicated to accepting a 5-V supply level, and the configurable B port, which is designed to track VCCB, accepts  
voltages from 3 V to 5 V. This allows for translation from a 3.3-V to a 5-V environment and vice versa.  
The SN74LVCC4245A 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  
effectively are isolated. The control circuitry (DIR, OE) is powered by VCCA  
.
ORDERING INFORMATION  
TA  
PACKAGE(1)  
Tube of 25  
ORDERABLE PART NUMBER  
SN74LVCC4245ADW  
TOP-SIDE MARKING  
LVCC4245A  
SOIC – DW  
Reel of 2000  
Reel of 2000  
Reel of 2000  
Tube of 60  
SN74LVCC4245ADWR  
SN74LVCC4245ANSR  
SN74LVCC4245ADBR  
SN74LVCC4245APW  
SN74LVCC4245APWR  
SN74LVCC4245APWT  
SOP – NS  
LVCC4245A  
LG245A  
–40°C to 85°C  
SSOP – DB  
TSSOP – PW  
Reel of 2000  
Reel of 250  
LG245A  
(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 DIR  
L
L
L
H
X
B data to A bus  
A data to B bus  
Isolation  
H
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...17

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