Datasheet Texas Instruments SN74LS644
| Manufacturer | Texas Instruments |
| Series | SN74LS644 |
Octal bus transceivers with open collector outputs
Datasheets
Prices
Status
| SN74LS644-1N | SN74LS644N | |
|---|---|---|
| Lifecycle Status | Obsolete (Manufacturer has discontinued the production of the device) | Obsolete (Manufacturer has discontinued the production of the device) |
| Manufacture's Sample Availability | No | No |
Packaging
| SN74LS644-1N | SN74LS644N | |
|---|---|---|
| N | 1 | 2 |
| Pin | 20 | 20 |
| Package Type | N | N |
| Industry STD Term | PDIP | PDIP |
| JEDEC Code | R-PDIP-T | R-PDIP-T |
| Width (mm) | 6.35 | 6.35 |
| Length (mm) | 24.33 | 24.33 |
| Thickness (mm) | 4.57 | 4.57 |
| Pitch (mm) | 2.54 | 2.54 |
| Max Height (mm) | 5.08 | 5.08 |
| Mechanical Data | Download | Download |
Eco Plan
| SN74LS644-1N | SN74LS644N | |
|---|---|---|
| RoHS | Not Compliant | Not Compliant |
| Pb Free | No | 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: SN74LS644 (2)
Manufacturer's Classification
- Semiconductors> Logic> Buffer/Driver/Transceiver> Standard Transceiver
