Datasheet 74LS240 Equivalent ( PDF )

SN74LS240 SN74LS244 Octal Buffer, Line Driver with 3-State Outputs The SN74LS240 and SN74LS244 are Octal Buffers and Line Drivers designed to be employed as memory address drivers, clock drivers and bus-oriented transmitters, receivers which provide improved PC board density. http:, , onsemi.com Hysteresis at Inputs to Improve Noise Margins 3-State Outputs Drive Bus Lines or Buffer Memory Addre

DM74LS240 DM74LS241 Octal 3-STATE Buffer, Line Driver, Line Receiver August 1986 Revised March 2000 DM74LS240 DM74LS241 Octal 3-STATE Buffer, Line Driver, Line Receiver General Description 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, re

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 0.48 ± 0.10 0.25 0.05 0° 15° + 0.11 Hitachi Code JEDEC EIAJ Weight (reference value) DP-20N Conforms 1.26 g Unit: mm 12.6 13 Max 20 11 1 10 5.5 0.80 Max 2.20 Max *0.22 ± 0.05 0.20 ± 0.04 0.20 7.80 + 0.30 1.15 1.27 *0.42 ± 0.08 0.40 ± 0.06 0.10 ± 0.10 0

DM54LS240 DM74LS240 DM54LS241 DM74LS241 Octal TRI-STATE Buffers Line Drivers Line Receivers April 1992 DM54LS240 DM74LS240 DM54LS241 DM74LS241 Octal TRI-STATE Buffers Line Drivers Line Receivers General Description These buffers line drivers are designed to improve both the performance and PC board density of TRI-STATE buffers drivers employed as memory-address drivers clock drivers and bus-orie

54LS240, 74LS240 LSTTL 型八 器, 器（三 、反相） 特点： 三 出 或 存 器地址寄存 器； PNP 入 小了直流 ； 入端上的 后 改善了 容限。 典型 tpd=10ns Pd=130mW 外引 排列 功能表 入 出控制 L L H 据 A L H × 出 Y H L Z Z=高阻 H=高 平 L=低 平 ×=不定 明： 八 器和 器是 提高三 出存 地址 器、