Parameters |
Mount |
Through Hole |
Mounting Type |
Through Hole |
Package / Case |
24-DIP (0.300, 7.62mm) |
Number of Pins |
24 |
Weight |
1.753503g |
Operating Temperature |
0°C~70°C TA |
Packaging |
Tube |
Series |
74LS |
JESD-609 Code |
e4 |
Pbfree Code |
yes |
Part Status |
Obsolete |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
24 |
ECCN Code |
EAR99 |
Terminal Finish |
Nickel/Palladium/Gold (Ni/Pd/Au) |
Additional Feature |
DIRECTION CONTROL; SELECT INPUT FOR MULTIPLEXED TRANSMISSION OF REGISTERED OR REAL TIME DATA |
Subcategory |
Bus Driver/Transceiver |
Technology |
TTL |
Voltage - Supply |
4.75V~5.25V |
Terminal Position |
DUAL |
Number of Functions |
1 |
Supply Voltage |
5V |
Terminal Pitch |
2.54mm |
Base Part Number |
74LS646 |
Pin Count |
24 |
Output Type |
3-State |
Operating Supply Voltage |
5V |
Number of Elements |
1 |
Polarity |
Non-Inverting |
Power Supplies |
5V |
Number of Channels |
8 |
Number of Ports |
2 |
Number of Bits |
8 |
Propagation Delay |
65 ns |
Quiescent Current |
103mA |
Turn On Delay Time |
35 ns |
Family |
LS |
Logic Function |
Inverting, Transceiver |
Direction |
Bidirectional |
Current - Output High, Low |
15mA 24mA |
Logic Type |
Transceiver, Non-Inverting |
Trigger Type |
POSITIVE EDGE |
Control Type |
INDEPENDENT CONTROL |
Input Current |
100μA |
Translation |
N/A |
Height |
4.57mm |
Length |
31.64mm |
Width |
6.73mm |
Radiation Hardening |
No |
REACH SVHC |
No SVHC |
RoHS Status |
ROHS3 Compliant |
Lead Free |
Lead Free |
SN74LS646NT Overview
Logical driver uses a neat 24-DIP (0.300, 7.62mm) package. Tube external packaging. Available in Through Hole. Voltage buffer adopts Transceiver, Non-Inverting logic prototype. Buffer IC is fed with a voltage of 4.75V~5.25V. Qualified to operate within 0°C~70°C TA. The high and low logic state output current of logical driver is 15mA 24mA. Logical driver can deal with 3-State output (s). All of the 1 elements are put into use. Digital buffer is one of the 74LS series devices. 24 terminations with different functions. Buffer IC reuqires a supply voltage of 5V. LS family part. 24 pins are set with the electric part. Buffer IC is suitable for Through Hole applications. Logical driver has 24 pins. Enhanced with 2 ports. You can search "74LS646" for other related electrical components. Specifically, digital transciever is a kind of Bus Driver/Transceiver. The digital buffer starts up under INDEPENDENT CONTROL control technology. In quiescent state, the electronic part uses 103mA. It is recommended to use a 5V power supply. To run the part safely and stably in a circuit, 5V recommends users apply 5V on the logical driver. 8 bits are included within the electrical component. Logical driver features DIRECTION CONTROL; SELECT INPUT FOR MULTIPLEXED TRANSMISSION OF REGISTERED OR REAL TIME DATA to better serve the need. 8 channels for high quality communication. Logical driver adapts POSITIVE EDGE trigger.
SN74LS646NT Features
Bus Driver/Transceiver
DIRECTION CONTROL; SELECT INPUT FOR MULTIPLEXED TRANSMISSION OF REGISTERED OR REAL TIME DATA
Trigger Type: POSITIVE EDGE
SN74LS646NT Applications
There are a lot of Texas Instruments SN74LS646NT Buffers & Transceivers applications.
- Ethernet circuitry
- Indoor ad hoc meeting
- transmission relay
- Wireless communication
- interconnection between computers
- Optical sub-assembly (OSA)
- Long-distance fiber optic network applications
- Fiber-to-the-desktop
- Pocket PC
- Radio transmission