Datasheet Texas Instruments SN74LS257BN3
| Manufacturer | Texas Instruments |
| Series | SN74LS257B |
| Part Number | SN74LS257BN3 |
Quadruple 2-Line To 1-Line Data Selectors/Multiplexers With 3-State Outputs 16-PDIP 0 to 70
Datasheets
Quadruple 2-Line To 1-Line Data Selectors/Multiplexers datasheet
PDF, 989 Kb, File published: Mar 1, 1988
Extract from the document
Prices
Status
| Lifecycle Status | Obsolete (Manufacturer has discontinued the production of the device) |
| Manufacture's Sample Availability | No |
Packaging
| Pin | 16 |
| Package Type | N |
| Industry STD Term | PDIP |
| JEDEC Code | R-PDIP-T |
| Width (mm) | 6.35 |
| Length (mm) | 19.3 |
| Thickness (mm) | 3.9 |
| Pitch (mm) | 2.54 |
| Max Height (mm) | 5.08 |
| Mechanical Data | Download |
Parametrics
| Approx. Price (US$) | 0.28 | 1ku |
| Bits(#) | 2 |
| Channels(#) | 4 |
| Configuration | 2:1 |
| F @ Nom Voltage(Max)(Mhz) | 35 |
| Function | Encoder/Multiplexer |
| ICC @ Nom Voltage(Max)(mA) | 19 |
| Input Type | TTL |
| Operating Temperature Range(C) | 0 to 70 |
| Output Drive (IOL/IOH)(Max)(mA) | 24/-2.6 |
| Output Type | TTL |
| Package Group | PDIP |
| Package Size: mm2:W x L (PKG) | See datasheet (PDIP) |
| Rating | Catalog |
| Schmitt Trigger | No |
| Technology Family | LS |
| Type | 3-State Output |
| VCC(Max)(V) | 5.25 |
| VCC(Min)(V) | 4.75 |
| Voltage(Nom)(V) | 5 |
| tpd @ Nom Voltage(Max)(ns) | 21 |
Eco Plan
| RoHS | Not Compliant |
| Pb Free | No |
Application Notes
- Designing with the SN54/74LS123 (Rev. A)PDF, 118 Kb, Revision: A, File published: 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
Model Line
Series: SN74LS257B (8)
Manufacturer's Classification
- Semiconductors > Logic > Specialty Logic > Decoder/Encoder/Multiplexer
