Datasheet Texas Instruments SN74LS257BNSR — Datenblatt
| Hersteller | Texas Instruments |
| Serie | SN74LS257B |
| Artikelnummer | SN74LS257BNSR |
Vierfache 2-Zeilen- bis 1-Zeilen-Datenauswahl / Multiplexer mit 3-Zustands-Ausgängen 16-SO 0 bis 70
Datenblätter
Quadruple 2-Line To 1-Line Data Selectors/Multiplexers datasheet
PDF, 989 Kb, Datei veröffentlicht: Mar 1, 1988
Auszug aus dem Dokument
Preise
Status
| Lifecycle Status | Active (Recommended for new designs) |
| Manufacture's Sample Availability | No |
Verpackung
| Pin | 16 |
| Package Type | NS |
| Industry STD Term | SOP |
| JEDEC Code | R-PDSO-G |
| Package QTY | 2000 |
| Carrier | LARGE T&R |
| Device Marking | 74LS257B |
| Width (mm) | 5.3 |
| Length (mm) | 10.3 |
| Thickness (mm) | 1.95 |
| Pitch (mm) | 1.27 |
| Max Height (mm) | 2 |
| Mechanical Data | Herunterladen |
Parameter
| Bandwidth | 35 MHz |
| Bits | 2 |
| Number of Channels | 4 |
| Configuration | 2:1 |
| Digital input leakage(Max) | 5 uA |
| ESD Charged Device Model | 0.75 kV |
| ESD HBM | 2 kV |
| F @ Nom Voltage(Max) | 35 Mhz |
| Function | Encoder/Multiplexer |
| ICC @ Nom Voltage(Max) | 19 mA |
| Operating Temperature Range | 0 to 70 C |
| Output Drive (IOL/IOH)(Max) | 24/-2.6 mA |
| Package Group | SO |
| Package Size: mm2:W x L | 16SO: 80 mm2: 7.8 x 10.2(SO) PKG |
| Rating | Catalog |
| Schmitt Trigger | No |
| Technology Family | LS |
| Type | 3-State Output |
| VCC(Max) | 5.25 V |
| VCC(Min) | 4.75 V |
| Voltage(Nom) | 5 V |
| tpd @ Nom Voltage(Max) | 21 ns |
Öko-Plan
| RoHS | Compliant |
Anwendungshinweise
- Designing with the SN54/74LS123 (Rev. A)PDF, 118 Kb, Revision: A, Datei veröffentlicht: Mar 1, 1997
The Texas Instruments (TI) SN54/74LS123 dual retriggerable monostable multivibrator is a one-shot device capable of verylong output pulses and up to 100% duty cycle. The ?LS123 also features dc triggering from gated low-level active A andhigh-level active B inputs and provides a clear input that terminates the output pulse of any predetermined time independentof timing components R ext and
Modellreihe
Serie: SN74LS257B (8)
Herstellerklassifikation
- Semiconductors > Switches and Multiplexers > Buffered Encoders and Decoders