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SN74CBT3345CDWR

更新时间： 2024-11-29 05:24:51
品牌 Logo 应用领域
德州仪器 - TI 开关
页数 文件大小 规格书
17页 619K
描述
8-BIT FET BUS SWITCH 5-V BUS SWITCH WITH -2-V UNDERSHOOT PROTECTION

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SN74CBT3345CDWR 数据手册

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SCDS129A − SEPTEMBER 2003 − REVISED OCTOBER 2003  
D
D
D
D
Undershoot Protection for Off-Isolation on  
A and B Ports Up To −2 V  
D
Control Inputs Can Be Driven by TTL or  
5-V/3.3-V CMOS Outputs  
Bidirectional Data Flow, With Near-Zero  
Propagation Delay  
D
D
D
I
Supports Partial-Power-Down Mode  
off  
Operation  
Low ON-State Resistance (r  
)
Latch-Up Performance Exceeds 100 mA Per  
JESD 78, Class II  
on  
Characteristics (r = 3 Ω Typical)  
on  
Low Input/Output Capacitance Minimizes  
Loading and Signal Distortion  
ESD Performance Tested Per JESD 22  
− 2000-V Human-Body Model  
(A114-B, Class II)  
(C  
= 5.5 pF Typical)  
io(OFF)  
− 1000-V Charged-Device Model (C101)  
D
D
Data and Control Inputs Provide  
Undershoot Clamp Diodes  
D
Supports Both Digital and Analog  
Applications: USB Interface, Memory  
Interleaving, Bus Isolation, Low-Distortion  
Signal Gating  
Low Power Consumption  
(I  
= 3 µA Max)  
CC  
D
V
Operating Range From 4 V to 5.5 V  
CC  
D
Data I/Os Support 0 to 5-V Signaling Levels  
(0.8-V, 1.2-V, 1.5-V, 1.8-V, 2.5-V, 3.3-V, 5-V)  
DB, DBQ, DGV, DW, OR PW PACKAGE  
(TOP VIEW)  
RGY PACKAGE  
(TOP VIEW)  
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10  
20  
19  
18  
17  
16  
15  
14  
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11  
V
OE  
A1  
A2  
A3  
A4  
A5  
A6  
A7  
A8  
CC  
OE  
B1  
B2  
B3  
B4  
B5  
B6  
B7  
B8  
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20  
19  
18  
17  
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12  
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A1  
A2  
A3  
A4  
A5  
A6  
A7  
A8  
OE  
B1  
B2  
B3  
B4  
B5  
B6  
B7  
GND  
10  
11  
description/ordering information  
The SN74CBT3345C is a high-speed TTL-compatible FET bus switch with low ON-state resistance (r ),  
on  
allowing for minimal propagation delay. Active Undershoot-Protection Circuitry on the A and B ports of the  
SN74CBT3345C provides protection for undershoot up to −2 V by sensing an undershoot event and ensuring  
that the switch remains in the proper OFF state.  
The SN74CBT3345C is organized as an 8-bit bus switch with two output-enable (OE, OE) inputs. When OE  
is high or OE is low, the bus switch is ON, and the A port is connected to the B port, allowing bidirectional data  
flow between ports. When OE is low and OE is high, the bus switch is OFF and the high-impedance state exists  
between the A and B ports.  
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.  
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Copyright 2003, Texas Instruments Incorporated  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...17

中文翻译

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SN74CBT3345CDWR 替代型号

型号 品牌 替代类型 描述 数据表
SN74CBT3345CDWRE4 TI

完全替代

 8-BIT FET BUS SWITCH 5-V BUS SWITCH WITH -2-V UNDERSHOOT PROTECTION
SN74CBT3345CDWE4 TI

完全替代

 8-BIT FET BUS SWITCH 5-V BUS SWITCH WITH -2-V UNDERSHOOT PROTECTION
SN74CBT3345DW TI

类似代替

 8-BIT FET BUS SWITCH

与SN74CBT3345CDWR相关器件

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SN74CBT3345CDWRE4 TI

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 		8-BIT FET BUS SWITCH 5-V BUS SWITCH WITH -2-V UNDERSHOOT PROTECTION
SN74CBT3345CDWRG4 TI

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 		CBT/FST/QS/5C/B SERIES, 8-BIT DRIVER, TRUE OUTPUT, PDSO20, GREEN, PLASTIC, SOIC-20
SN74CBT3345CPW TI

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 		8-BIT FET BUS SWITCH 5-V BUS SWITCH WITH -2-V UNDERSHOOT PROTECTION
SN74CBT3345CPWE4 TI

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 		8-BIT FET BUS SWITCH 5-V BUS SWITCH WITH -2-V UNDERSHOOT PROTECTION
SN74CBT3345CPWR TI

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 		8-BIT FET BUS SWITCH 5-V BUS SWITCH WITH -2-V UNDERSHOOT PROTECTION
SN74CBT3345CPWRE4 TI

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 		8-BIT FET BUS SWITCH 5-V BUS SWITCH WITH -2-V UNDERSHOOT PROTECTION
SN74CBT3345CRGYR TI

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 		8-BIT FET BUS SWITCH 5-V BUS SWITCH WITH -2-V UNDERSHOOT PROTECTION
SN74CBT3345CRGYRG4 TI

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 		8-BIT FET BUS SWITCH 5-V BUS SWITCH WITH -2-V UNDERSHOOT PROTECTION
SN74CBT3345DB TI

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 		8-BIT FET BUS SWITCH
SN74CBT3345DBLE TI

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 		8-Bit FET Bus Switch 20-SSOP -40 to 85

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