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SN74CB3Q3251是一款高带宽FET总线开关，利用电荷泵提升传输晶体管的栅极电压，提供低且平坦的导通状态阻力（r on ）。低而平坦的导通电阻允许最小的传播延迟，并支持数据输入/输出（I /O）端口上的轨到轨切换。该器件还具有低数据I /O电容，可最大限度地减少数据总线上的电容负载和信号失真。 SN74CB3Q3251专为支持高带宽应用而设计，提供优化的接口解决方案，非常适合宽带通信，网络和数据密集型计算系统。
SN74CB3Q3251是1/8多路复用器/多路分解器使用单个输出使能（OE \）输入。选择（S0，S1，S2）输入控制多路复用器/多路分解器的数据路径。当OE \为低电平时，多路复用器/多路分解器启用，A端口连接到B端口，允许端口之间的双向数据流。当OE \为高电平时，多路复用器/多路分离器被禁用，A和B端口之间存在高阻态。
该器件完全为使用I
为了确保上电或断电期间的高阻态，OE \应通过上拉电阻连接到V CC ;电阻的最小值由驱动器的电流吸收能力决定。
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<跨度>查看更多内容 | Configuration |
| Number of Channels (#) |
| Power Supply Type |
| Vss (Min) (V) |
| Vss (Max) (V) |
| Vdd (Min) (V) |
| Vdd (Max) (V) |
| Ron (Typ) (Ohms) |
| Bandwidth (MHz) |
| Rating |
| Operating Temperature Range (C) |
| Package Size: mm2:W x L (PKG) |
| Package Group |
| Supply Range (Max) |
| Ron (Max) (Ohms) |
| Input/Output Continuous Current (Max) (mA) |
| Supply Current (Typ) (uA) |
| Supply Current (Max) (uA) |
| Features |
| OFF-state leakage current (Max) (µA) |
| ON-state leakage current (Max) (µA) |
| Input/Output ON-state Capacitance (Typ) (pF) |
| Input/Output OFF-state Capacitance (Typ) (pF) |
| ESD Charged Device Model (kV) |
| ESD HBM (kV) |
| VIL (Max) (V) |
| VIH (Min) (V) |
| SN74CB3Q3251 | SN74CBT3251 | SN74CBTLV3251 |
|---|---|---|
| 8:1 | 8:1 | 8:1 |
| 1 | 1 | 1 |
| Single | Single | Single |
| N/A | N/A | N/A |
| N/A | N/A | N/A |
| 2.3 | 4 | 2.3 |
| 3.6 | 5.5 | 3.6 |
| 3.5 | 5 | 5 |
| 500 | 200 | 200 |
| Catalog | Catalog | Catalog |
| -40 to 85 | -40 to 85 | -40 to 85 |
| 16SSOP: 29 mm2: 6 x 4.9(SSOP) 16TSSOP: 32 mm2: 6.4 x 5(TSSOP) 16TVSOP: 23 mm2: 6.4 x 3.6(TVSOP) 16VQFN: 14 mm2: 3.5 x 4(VQFN) | 16SOIC: 59 mm2: 6 x 9.9(SOIC) 16SSOP: 29 mm2: 6 x 4.9(SSOP) 16SSOP: 48 mm2: 7.8 x 6.2(SSOP) 16TSSOP: 32 mm2: 6.4 x 5(TSSOP) 16VQFN: 14 mm2: 3.5 x 4(VQFN) | 16SOIC: 59 mm2: 6 x 9.9(SOIC) 16SSOP: 29 mm2: 6 x 4.9(SSOP) 16TSSOP: 32 mm2: 6.4 x 5(TSSOP) 16TVSOP: 23 mm2: 6.4 x 3.6(TVSOP) 16VQFN: 14 mm2: 3.5 x 4(VQFN) |
| SSOP TSSOP TVSOP VQFN | SOIC SSOP SSOP TSSOP VQFN | SOIC SSOP TSSOP TVSOP VQFN |
| 3.6 | 5.5 | 3.6 |
| 11 | 15 | 40 |
| 64 | 128 | 128 |
| 600 | ||
| 2000 | 3 | 10 |
| Powered off protection | Powered off protection | |
| 1 | 1 | 1 |
| 1 | 1 | |
| 15 | ||
| 3.5 | 4 | 6 |
| 1 | 1 | |
| 2 | 1.5 | |
| 0.8 | 0.8 | 0.8 |
| 1.7 | 2 | 2 |
| Configuration |
| Number of Channels (#) |
| Power Supply Type |
| Vss (Min) (V) |
| Vss (Max) (V) |
| Vdd (Min) (V) |
| Vdd (Max) (V) |
| Ron (Typ) (Ohms) |
| Bandwidth (MHz) |
| Rating |
| Operating Temperature Range (C) |
| Package Size: mm2:W x L (PKG) |
| Package Group |
| Supply Range (Max) |
| Ron (Max) (Ohms) |
| Input/Output Continuous Current (Max) (mA) |
| Supply Current (Typ) (uA) |
| Supply Current (Max) (uA) |
| Features |
| OFF-state leakage current (Max) (µA) |
| ON-state leakage current (Max) (µA) |
| Input/Output ON-state Capacitance (Typ) (pF) |
| Input/Output OFF-state Capacitance (Typ) (pF) |
| ESD Charged Device Model (kV) |
| ESD HBM (kV) |
| VIL (Max) (V) |
| VIH (Min) (V) |
| SN74CB3Q3251 | SN74CBT3251 | SN74CBTLV3251 |
|---|---|---|
| 8:1 | 8:1 | 8:1 |
| 1 | 1 | 1 |
| Single | Single | Single |
| N/A | N/A | N/A |
| N/A | N/A | N/A |
| 2.3 | 4 | 2.3 |
| 3.6 | 5.5 | 3.6 |
| 3.5 | 5 | 5 |
| 500 | 200 | 200 |
| Catalog | Catalog | Catalog |
| -40 to 85 | -40 to 85 | -40 to 85 |
| 16SSOP: 29 mm2: 6 x 4.9(SSOP) 16TSSOP: 32 mm2: 6.4 x 5(TSSOP) 16TVSOP: 23 mm2: 6.4 x 3.6(TVSOP) 16VQFN: 14 mm2: 3.5 x 4(VQFN) | 16SOIC: 59 mm2: 6 x 9.9(SOIC) 16SSOP: 29 mm2: 6 x 4.9(SSOP) 16SSOP: 48 mm2: 7.8 x 6.2(SSOP) 16TSSOP: 32 mm2: 6.4 x 5(TSSOP) 16VQFN: 14 mm2: 3.5 x 4(VQFN) | 16SOIC: 59 mm2: 6 x 9.9(SOIC) 16SSOP: 29 mm2: 6 x 4.9(SSOP) 16TSSOP: 32 mm2: 6.4 x 5(TSSOP) 16TVSOP: 23 mm2: 6.4 x 3.6(TVSOP) 16VQFN: 14 mm2: 3.5 x 4(VQFN) |
| SSOP TSSOP TVSOP VQFN | SOIC SSOP SSOP TSSOP VQFN | SOIC SSOP TSSOP TVSOP VQFN |
| 3.6 | 5.5 | 3.6 |
| 11 | 15 | 40 |
| 64 | 128 | 128 |
| 600 | ||
| 2000 | 3 | 10 |
| Powered off protection | Powered off protection | |
| 1 | 1 | 1 |
| 1 | 1 | |
| 15 | ||
| 3.5 | 4 | 6 |
| 1 | 1 | |
| 2 | 1.5 | |
| 0.8 | 0.8 | 0.8 |
| 1.7 | 2 | 2 |
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