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SN74CBTLV3245DGV

更新时间： 2024-11-29 22:37:07
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德州仪器 - TI 开关
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6页 82K
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LOW-VOLTAGE OCTAL FET BUS SWITCH

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SN74CBTLV3245  
LOW-VOLTAGE OCTAL FET BUS SWITCH  
SCDS034F – JULY 1997 – REVISED MAY 1998  
DB, DGV, DW, OR PW PACKAGE  
(TOP VIEW)  
Standard ’245-Type Pinout  
5-Ω Switch Connection Between Two Ports  
Isolation Under Power-Off Conditions  
V
1
2
3
4
5
6
7
8
9
10  
20  
19  
18  
17  
16  
15  
14  
NC  
A1  
CC  
OE  
B1  
B2  
B3  
B4  
B5  
ESD Protection Exceeds 2000 V Per  
MIL-STD-883, Method 3015; Exceeds 200 V  
Using Machine Model (C = 200 pF, R = 0)  
A2  
A3  
A4  
A5  
Package Options Include Shrink  
Small-Outline (DB), Thin Very Small-Outline  
(DGV), Small-Outline (DW), and Thin Shrink  
Small-Outline (PW) Packages  
A6  
13 B6  
12 B7  
11 B8  
A7  
A8  
GND  
description  
The SN74CBTLV3245 provides eight bits of  
high-speed bus switching in a standard ’245  
device pinout. The low on-state resistance of the  
switch allows connections to be made with  
minimal propagation delay.  
NC – No internal connection  
The device is organized as one 8-bit switch. When output enable (OE) is low, the 8-bit bus switch is on and  
port A is connected to port B. When OE is high, the switch is open and a high-impedance state exists between  
the two ports.  
To ensure the high-impedance state during power up or power down, OE should be tied to V through a pullup  
CC  
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.  
The SN74CBTLV3245 is characterized for operation from –40°C to 85°C.  
FUNCTION TABLE  
INPUT  
FUNCTION  
OE  
L
A port = B port  
Disconnect  
H
logic diagram (positive logic)  
2
18  
11  
A1  
B1  
B8  
SW  
SW  
9
A8  
19  
OE  
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.  
Copyright 1998, Texas Instruments Incorporated  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
123456

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