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These data selectors/multiplexers contain inverters and drivers to supply full data selection to the four output gates. A separate strobe (G)\ input is provided. A 4-bit word is selected from one of two sources and is routed to the four outputs. The HC157 devices present true data.
| Function |
| Technology Family |
| VCC (Min) (V) |
| VCC (Max) (V) |
| Channels (#) |
| Voltage (Nom) (V) |
| F @ Nom Voltage (Max) (Mhz) |
| ICC @ Nom Voltage (Max) (mA) |
| tpd @ Nom Voltage (Max) (ns) |
| Configuration |
| Type |
| IOL (Max) (mA) |
| IOH (Max) (mA) |
| Rating |
| Operating Temperature Range (C) |
| Package Group |
| Package Size: mm2:W x L (PKG) |
| Bits (#) |
| Digital input leakage (Max) (uA) |
| ESD Charged Device Model (kV) |
| ESD HBM (kV) |
| SN74HC157 | SN54HC157 |
|---|---|
| Encoder Multiplexer | Encoder/Multiplexer |
| HC | HC |
| 2 | 2 |
| 6 | 6 |
| 4 | 4 |
| 3.3 5 | 3.3 5 |
| 28 | 28 |
| 10 | 10 |
| 32 | 32 |
| 2:1 | 2:1 |
| Standard | Standard |
| 7.8 | 7.8/-7.8 |
| -7.8 | |
| Catalog | Military |
| -40 to 85 | -55 to 125 |
| PDIP SO SOIC SSOP TSSOP | CDIP CFP LCCC |
| See datasheet (PDIP) 16SO: 80 mm2: 7.8 x 10.2(SO) 16SOIC: 59 mm2: 6 x 9.9(SOIC) 16SSOP: 48 mm2: 7.8 x 6.2(SSOP) 16TSSOP: 32 mm2: 6.4 x 5(TSSOP) | See datasheet (CDIP) See datasheet (CFP) 20LCCC: 79 mm2: 8.89 x 8.89(LCCC) |
| 2 | 2 |
| 5 | 5 |
| 0.75 | 0.75 |
| 2 | 2 |
| 无样片 |
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