These buffers/line drivers are designed to improve both the performance and PC board density of 3-STATE buffers/ drivers employed as memory-address drivers, clock drivers, and bus-oriented transmitters/receivers. Featuring 400 mV of hysteresis at each low current PNP data line input, they provide improved noise rejection and high fanout outputs and can be us.
s 3-STATE outputs drive bus lines directly s PNP inputs reduce DC loading on bus lines s Hysteresis at data inputs improves noise margins s Typical IOL (sink current) 24 mA s Typical IOH (source current) −15 mA s Typical propagation delay times Inverting Noninverting 10.5 ns 12 ns s Typical enable/disable time 18 ns s Typical power dissipation (enabled) Inverting Noninverting 130 mW 135 mW Ordering Code: Order Number DM74LS240WM DM74LS240SJ DM74LS240N DM74LS241WM DM74LS241N Package Number M20B M20D N20A M20B N20A Package Description 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-0.
OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS The SN54 / 74LS240, 241 and 244 are Octal Buffers and Line Drivers designe.
Unit: mm 24.50 25.40 Max 20 11 7.00 Max 6.30 1 0.89 1.27 Max 10 1.30 2.54 Min 5.08 Max 7.62 0.51 Min 2.54 ± 0.25 0..
These buffers line drivers are designed to improve both the performance and PC board density of TRI-STATE buffers driver.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | 74LS240 |
ON Semiconductor |
LOW POWER SCHOTTKY | |
2 | 74LS240 |
Fairchild Semiconductor |
Octal 3-STATE Buffer/Line Driver/Line Receiver | |
3 | 74LS240 |
Hitachi Semiconductor |
Octal Buffers/Line Drivers/Line Receivers | |
4 | 74LS240 |
National Semiconductor |
Octal TRI-STATE Buffers/Line Drivers/Line Receivers | |
5 | 74LS240 |
BDTIC |
LSTTL eight-Buffer / Bus Driver | |
6 | 74LS243 |
Fairchild Semiconductor |
Quadruple Bus Transceiver | |
7 | 74LS244 |
Mitsubishi Electric Semiconductor |
OCTAL BUFFER/LINE DRIVERS | |
8 | 74LS244 |
Fairchild Semiconductor |
Octal 3-STATE Buffer/Line Driver/Line Receiver | |
9 | 74LS244 |
Hitachi Semiconductor |
Octal Buffers/Line Drivers/Line Receivers | |
10 | 74LS244 |
ON Semiconductor |
LOW POWER SCHOTTKY | |
11 | 74LS245 |
ON Semiconductor |
Octal Bus Transceivers | |
12 | 74LS245 |
Fairchild Semiconductor |
3-STATE Octal Bus Transceiver |