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LS1240 manufactured by:
Contek MicroelectronicsElectronic tone ringer with built-in bridge rectifier. Supply voltage Vs=26V. Current consumption without load Ib=1.5A(typ). Activation voltage Von=12V(min),13.5V(max). Sustaining voltage Voff=8V(min),9V(max). Download LS1240 datasheet from
Contek Microelectronics
pdf
 35 kb 
Fairchild SemiconductorOctal 3-STATE Bus Driver

Others with the same file for datasheet:
DM74ALS1240A, DM74ALS1240AWM
Download LS1240 datasheet from
Fairchild Semiconductor
pdf
 44 kb 
ST MicroelectronicsELECTRONIC TWO-TONE RINGER

Others with the same file for datasheet:
LS1240AD1013TR
Download LS1240 datasheet from
ST Microelectronics
pdf
 504 kb 
Wing Shing Computer ComponentsElectronic Two-Tone Ringer

Others with the same file for datasheet:
LS1240AD1
Download LS1240 datasheet from
Wing Shing Computer Components
pdf
 285 kb 
LS103C-GS18 View LS1240 to our catalog LS1240A




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