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SN74CBT3245A提供8位高速TTL兼容总线切换。 SOIC，SSOP，TSSOP和TVSOP封装提供标准的?? 245器件引脚排列。开关的低导通状态电阻允许以最小的传播延迟进行连接。
器件组织为一个8位开关。当输出使能（OE）\为低电平时，开关打开，端口A连接到端口B.当OE \为高电平时，开关打开，两个端口之间存在高阻状态。
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。
| 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) |
| SN74CBT3245A | SN74CB3Q3245 | SN74CBT3245C | SN74CBTLV3245A |
|---|---|---|---|
| 1:1 SPST | 1:1 SPST | 1:1 SPST | 1:1 SPST |
| 8 | 8 | 8 | 8 |
| Single | Single | Single | Single |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| 4 | 2.3 | 4 | 2.3 |
| 5.5 | 3.6 | 5.5 | 3.6 |
| 5 | 4 | 3 | 5 |
| 200 | 500 | 200 | 200 |
| Catalog | Catalog | Catalog | Catalog |
| -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 |
| 20BGA MICROSTAR JUNIOR: 12 mm2: 3 x 4(BGA MICROSTAR JUNIOR) 20SOIC: 132 mm2: 10.3 x 12.8(SOIC) 20SSOP: 52 mm2: 6 x 8.65(SSOP) 20SSOP: 56 mm2: 7.8 x 7.2(SSOP) 20TSSOP: 42 mm2: 6.4 x 6.5(TSSOP) 20TVSOP: 32 mm2: 6.4 x 5(TVSOP) 20VQFN: 16 mm2: 3.5 x 4.5(VQFN) | 20BGA MICROSTAR JUNIOR: 12 mm2: 3 x 4(BGA MICROSTAR JUNIOR) 20SSOP: 52 mm2: 6 x 8.65(SSOP) 20TSSOP: 42 mm2: 6.4 x 6.5(TSSOP) 20TVSOP: 32 mm2: 6.4 x 5(TVSOP) 20VQFN: 16 mm2: 3.5 x 4.5(VQFN) | 20SOIC: 132 mm2: 10.3 x 12.8(SOIC) 20SSOP: 52 mm2: 6 x 8.65(SSOP) 20SSOP: 56 mm2: 7.8 x 7.2(SSOP) 20TSSOP: 42 mm2: 6.4 x 6.5(TSSOP) 20TVSOP: 32 mm2: 6.4 x 5(TVSOP) 20VQFN: 16 mm2: 3.5 x 4.5(VQFN) | 20BGA MICROSTAR JUNIOR: 12 mm2: 3 x 4(BGA MICROSTAR JUNIOR) 20SOIC: 132 mm2: 10.3 x 12.8(SOIC) 20SSOP: 52 mm2: 6 x 8.65(SSOP) 20TSSOP: 42 mm2: 6.4 x 6.5(TSSOP) 20TVSOP: 32 mm2: 6.4 x 5(TVSOP) 20VQFN: 16 mm2: 3.5 x 4.5(VQFN) |
| BGA MICROSTAR JUNIOR SOIC SSOP SSOP TSSOP TVSOP VQFN | BGA MICROSTAR JUNIOR SSOP TSSOP TVSOP VQFN | SOIC SSOP SSOP TSSOP TVSOP VQFN | BGA MICROSTAR JUNIOR SOIC SSOP TSSOP TVSOP VQFN |
| 5.5 | 3.6 | 5.5 | 3.6 |
| 15 | 9 | 12 | 40 |
| 128 | 64 | 128 | 128 |
| 1 | |||
| 3 | 4 | 3 | 10 |
| Powered off protection | Powered off protection -2V undershoot protection | Powered off protection | |
| 5 | 1 | 10 | 60 |
| 5 | 60 | ||
| 9 | 14 | ||
| 4 | 3.5 | 5.5 | 9 |
| 1 | 1 | ||
| 2 | 2 | 2 | |
| 0.8 | 0.8 | 0.8 | 0.8 |
| 2 | 1.7 | 2 | 2 |
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