Datasheet Texas Instruments SN74ALS646A
| Manufacturer | Texas Instruments |
| Series | SN74ALS646A |

Octal Registered Bus Transceivers with 3-State Outputs
Datasheets
Octal Bus Transceivers & Registers With 3 -State Outputs datasheet
PDF, 890 Kb, Revision: F, File published: Jan 1, 1995
Extract from the document
Status
| SN74ALS646A-1DWR | SN74ALS646A-1DWRE4 | SN74ALS646A-1DWRG4 | SN74ALS646ADW | SN74ALS646ADWE4 | SN74ALS646ADWR | |
|---|---|---|---|---|---|---|
| Lifecycle Status | Obsolete (Manufacturer has discontinued the production of the device) | Obsolete (Manufacturer has discontinued the production of the device) | Obsolete (Manufacturer has discontinued the production of the device) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) |
| Manufacture's Sample Availability | No | No | No | No | No | No |
Packaging
| SN74ALS646A-1DWR | SN74ALS646A-1DWRE4 | SN74ALS646A-1DWRG4 | SN74ALS646ADW | SN74ALS646ADWE4 | SN74ALS646ADWR | |
|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 |
| Pin | 24 | 24 | 24 | 24 | 24 | 24 |
| Package Type | DW | DW | DW | DW | DW | DW |
| Industry STD Term | SOIC | SOIC | SOIC | SOIC | SOIC | SOIC |
| JEDEC Code | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G |
| Width (mm) | 7.5 | 7.5 | 7.5 | 7.5 | 7.5 | 7.5 |
| Length (mm) | 15.4 | 15.4 | 15.4 | 15.4 | 15.4 | 15.4 |
| Thickness (mm) | 2.35 | 2.35 | 2.35 | 2.35 | 2.35 | 2.35 |
| Pitch (mm) | 1.27 | 1.27 | 1.27 | 1.27 | 1.27 | 1.27 |
| Max Height (mm) | 2.65 | 2.65 | 2.65 | 2.65 | 2.65 | 2.65 |
| Mechanical Data | Download | Download | Download | Download | Download | Download |
| Package QTY | 25 | 25 | 2000 | |||
| Carrier | TUBE | TUBE | LARGE T&R | |||
| Device Marking | ALS646A | ALS646A | ALS646A |
Parametrics
| Parameters / Models | SN74ALS646A-1DWR![]() | SN74ALS646A-1DWRE4![]() | SN74ALS646A-1DWRG4![]() | SN74ALS646ADW![]() | SN74ALS646ADWE4![]() | SN74ALS646ADWR![]() |
|---|---|---|---|---|---|---|
| Bits | 32 | 32 | 32 | |||
| F @ Nom Voltage(Max), Mhz | 75 | 75 | 75 | |||
| ICC @ Nom Voltage(Max), mA | 88 | 88 | 88 | |||
| Operating Temperature Range, C | 0 to 70 | 0 to 70 | 0 to 70 | |||
| Output Drive (IOL/IOH)(Max), mA | -15/24 | -15/24 | -15/24 | |||
| Package Group | SOIC | SOIC | SOIC | |||
| Package Size: mm2:W x L, PKG | 24SOIC: 160 mm2: 10.3 x 15.5(SOIC) | 24SOIC: 160 mm2: 10.3 x 15.5(SOIC) | 24SOIC: 160 mm2: 10.3 x 15.5(SOIC) | |||
| Rating | Catalog | Catalog | Catalog | |||
| Schmitt Trigger | No | No | No | |||
| Technology Family | ALS | ALS | ALS | |||
| VCC(Max), V | 5.5 | 5.5 | 5.5 | |||
| VCC(Min), V | 4.5 | 4.5 | 4.5 | |||
| Voltage(Nom), V | 5 | 5 | 5 | |||
| tpd @ Nom Voltage(Max), ns | 20 | 20 | 20 |
Eco Plan
| SN74ALS646A-1DWR | SN74ALS646A-1DWRE4 | SN74ALS646A-1DWRG4 | SN74ALS646ADW | SN74ALS646ADWE4 | SN74ALS646ADWR | |
|---|---|---|---|---|---|---|
| RoHS | Not Compliant | Not Compliant | Not Compliant | Compliant | Compliant | Compliant |
| Pb Free | No | No | No |
Application Notes
- Advanced Schottky (ALS and AS) Logic FamiliesPDF, 1.9 Mb, File published: Aug 1, 1995
This document introduces the advanced Schottky family of clamped TTL integrated circuits (ICs). Detailed electrical characteristics of the 'AS and 'ALS devices with table formats are provided. Guidelines for designing high-performance digital systems using the Advanced Schottky family are given along with a brief summary of the solutions to most design decisions needed to implement systems using t
Model Line
Series: SN74ALS646A (6)
Manufacturer's Classification
- Semiconductors> Logic> Buffer/Driver/Transceiver> Registered Transceiver
