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SN74CBTLV3245ADBQ

更新时间： 2024-11-28 22:37:07
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德州仪器 - TI 开关
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6页 95K
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LOW-VOLTAGE OCTAL FET BUS SWITCH

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SN74CBTLV3245ADBQ 数据手册

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SN74CBTLV3245A  
LOW-VOLTAGE OCTAL FET BUS SWITCH  
SCDS034H – JULY 1997 – REVISED NOVEMBER 1999  
DBQ, 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  
A2  
A3  
A4  
A5  
A6  
A7  
A8  
CC  
ESD Protection Exceeds 2000 V Per  
MIL-STD-883, Method 3015; Exceeds 200 V  
Using Machine Model (C = 200 pF, R = 0)  
OE  
B1  
B2  
B3  
B4  
B5  
Latch-Up Performance Exceeds 250 mA Per  
JESD 17  
Package Options Include Shrink  
Small-Outline (DBQ), Thin Very  
Small-Outline (DGV), Small-Outline (DW),  
and Thin Shrink Small-Outline (PW)  
Packages  
13 B6  
12 B7  
11  
B8  
GND  
NC – No internal connection  
description  
The SN74CBTLV3245A 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.  
Thedeviceisorganizedasone8-bitswitch. Whenoutputenable(OE)islow, the8-bitbusswitchisonandA port  
is connected to B port. When OE is high, the switch is open and the 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 SN74CBTLV3245A 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 1999, 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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