数据搜索系统,热门电子元器件搜索 |
|
54AC258L 数据表(PDF) 2 Page - National Semiconductor (TI) |
|
|
54AC258L 数据表(HTML) 2 Page - National Semiconductor (TI) |
2 / 8 page Connection Diagrams Functional Description The ’AC/’ACT258 is a quad 2-input multiplexer with TRI-STATE outputs. It selects four bits of data from two sources under control of a common Select input (S). When the Select input is LOW, the I 0x inputs are selected and when Select is HIGH, the I 1x inputs are selected. The data on the selected inputs appears at the outputs in inverted form. The ’AC/’ACT258 is the logic implementation of a 4-pole, 2-position switch where the position of the switch is deter- mined by the logic levels supplied to the Select input. The logic equations for the outputs are shown below: Z a = OE • (I1a • S+I0a • S) Z b = OE • (I1b • S+I0b • S) Z c = OE • (I1c • S+I0c • S) Z d = OE • (I1d • S+I0d • S) When the Output Enable input (OE) is HIGH, the outputs are forced to a high impedance state. If the outputs of the TRI-STATE devices are tied together, all but one device must be in the high impedance state to avoid high currents that would exceed the maximum ratings. Designers should en- sure that Output Enable signals to TRI-STATE devices whose outputs are tied together are designed so there is no overlap. Truth Table Output Select Data Outputs Enable Input Inputs OE SI 0 I 1 Z HX X X Z LH X L H LH X H L LL L X H LL H X L H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance Pin Assignment for DIP and Flatpak DS100287-3 Pin Assignment for LCC DS100287-4 www.national.com 2 |
类似零件编号 - 54AC258L |
|
类似说明 - 54AC258L |
|
|
链接网址 |
隐私政策 |
ALLDATASHEETCN.COM |
ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 链接交换 | 制造商名单 All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |