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參數資料
| 型號： | SN74CBT3345CDBQR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 總線收發器 |
| 英文描述： | CBT/FST/QS/5C/B SERIES, 8-BIT DRIVER, TRUE OUTPUT, PDSO20 |
| 封裝： | PLASTIC, QSOP-20 |
| 文件頁數： | 1/21頁 |
| 文件大小： | 788K |
| 代理商： | SN74CBT3345CDBQR |
SN74CBT3345C
8BIT FET BUS SWITCH
5V BUS SWITCH WITH 2V UNDERSHOOT PROTECTION
SCDS129A SEPTEMBER 2003 REVISED OCTOBER 2003
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Undershoot Protection for Off-Isolation on
A and B Ports Up To 2 V
D Bidirectional Data Flow, With Near-Zero
Propagation Delay
D Low ON-State Resistance (ron)
Characteristics (ron = 3 Typical)
D Low Input/Output Capacitance Minimizes
Loading and Signal Distortion
(Cio(OFF) = 5.5 pF Typical)
D Data and Control Inputs Provide
Undershoot Clamp Diodes
D Low Power Consumption
(ICC = 3 A Max)
D VCC Operating Range From 4 V to 5.5 V
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)
D Control Inputs Can Be Driven by TTL or
5-V/3.3-V CMOS Outputs
D Ioff Supports Partial-Power-Down Mode
Operation
D Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
D ESD Performance Tested Per JESD 22
2000-V Human-Body Model
(A114-B, Class II)
1000-V Charged-Device Model (C101)
D Supports Both Digital and Analog
Applications: USB Interface, Memory
Interleaving, Bus Isolation, Low-Distortion
Signal Gating
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
OE
A1
A2
A3
A4
A5
A6
A7
A8
GND
VCC
OE
B1
B2
B3
B4
B5
B6
B7
B8
DB, DBQ, DGV, DW, OR PW PACKAGE
(TOP VIEW)
RGY PACKAGE
(TOP VIEW)
120
10
11
2
3
4
5
6
7
8
9
19
18
17
16
15
14
13
12
OE
B1
B2
B3
B4
B5
B6
B7
A1
A2
A3
A4
A5
A6
A7
A8
B8
V
GND
CC
OE
description/ordering information
The SN74CBT3345C is a high-speed TTL-compatible FET bus switch with low ON-state resistance (ron),
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.
Copyright
2003, Texas Instruments Incorporated
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.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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| SN74CBT3383DWRE4 | CBT/FST/QS/5C/B SERIES, 5 2-BIT EXCHANGER, TRUE OUTPUT, PDSO24 |
| SN74CBT3384ADWRE4 | CBT/FST/QS/5C/B SERIES, DUAL 5-BIT DRIVER, TRUE OUTPUT, PDSO24 |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| SN74CBT3345CDBQRE4 | 功能描述:數字總線開關 IC 16-Bit Buffer/Driver With 3-State Outputs RoHS:否 制造商:Texas Instruments 開關數量:24 傳播延遲時間:0.25 ns 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TSSOP-56 封裝:Reel |
| SN74CBT3345CDBQRG4 | 功能描述:數字總線開關 IC 8-Bit FET Bus Switch RoHS:否 制造商:Texas Instruments 開關數量:24 傳播延遲時間:0.25 ns 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TSSOP-56 封裝:Reel |
| SN74CBT3345CDBR | 功能描述:數字總線開關 IC 8-Bit FET Bus Switch RoHS:否 制造商:Texas Instruments 開關數量:24 傳播延遲時間:0.25 ns 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TSSOP-56 封裝:Reel |
| SN74CBT3345CDBRE4 | 功能描述:數字總線開關 IC 16-Bit Buffer/Driver With 3-State Outputs RoHS:否 制造商:Texas Instruments 開關數量:24 傳播延遲時間:0.25 ns 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TSSOP-56 封裝:Reel |
| SN74CBT3345CDBRG4 | 功能描述:數字總線開關 IC 8B FETBus Switch RoHS:否 制造商:Texas Instruments 開關數量:24 傳播延遲時間:0.25 ns 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TSSOP-56 封裝:Reel |
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