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SN74CB3Q3257器件是一款高带宽FET总线开关，利用电荷泵提升传输晶体管的栅极电压，提供低而平坦的导通状态电阻（于r <子> ）。
（1）有关CB3Q系列性能特性的更多信息，请参阅TI应用报告 CBT-C，CB3T和CB3Q信号开关系列，SCDA008。
所有商标均为其各自所有者的财产。
| 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) |
| SN74CB3Q3257 | SN74CBT3257 | SN74CBT3257C | SN74CBTLV3257 |
|---|---|---|---|
| 2:1 SPDT | 2:1 SPDT | 2:1 SPDT | 2:1 SPDT |
| 4 | 4 | 4 | 4 |
| Single | Single | Single | Single |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| 2.3 | 4 | 4 | 2.3 |
| 3.6 | 5.5 | 5.5 | 3.6 |
| 4 | 5 | 3 | 5 |
| 500 | 200 | 200 | 200 |
| Catalog | Catalog | Catalog | Catalog |
| -40 to 85 | -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) 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) 16UQFN: 5 mm2: 1.8 x 2.6(UQFN) 16VQFN: 14 mm2: 3.5 x 4(VQFN) |
| SSOP TSSOP TVSOP VQFN | SOIC SSOP SSOP TSSOP VQFN | SOIC SSOP SSOP TSSOP VQFN | SOIC SSOP TSSOP TVSOP UQFN VQFN |
| 3.6 | 5.5 | 5.5 | 3.6 |
| 9 | 20 | 12 | 40 |
| 64 | 128 | 128 | 128 |
| 250 | |||
| 700 | 3 | 3 | 10 |
| Powered off protection | Powered off protection -2V undershoot protection | Powered off protection | |
| 1 | 1 | 10 | |
| 1 | 1 | ||
| 10.5 | 16.5 | ||
| 3.5 | 4 | 5.5 | 5.5 |
| 1 | 1 | ||
| 2 | 2 | 2 | |
| 0.8 | 0.8 | 0.8 | 0.8 |
| 1.7 | 2 | 2 | 2 |
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