LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production.

Description: Dual 2-Line to 4-Line Decoders/Demultiplexers. Manufacturer: Fairchild Semiconductor.

TI 的 SN74LS155A 是一款 双通道 2 线至 4 线解码器/多路信号分离器。 查找参数、订购和质量信息.

TI’s SN74LS155A is a Dual 2-Line To 4-Line Decoders/Demultiplexers. Find parameters, ordering and quality information.

2010年10月15日 · 54155/7415554155/74155双线-4线译码器（有公共地址输入端）简要说明：155为独立选通、共用地址的两组线－4线译码器，共有54/74155和54/74LS155两种线路结构型式，其主要电特性的典型值如下：Tpd型号AB->Y（3级）PDCT54155/CT741551ns15mWCT54LS155/CT74LS15518ns31mW共用地址端（A、B ...

ta 当两组独立的选通端（C1、G1 和 C2、G2）使 155 处于工作状态时， i 共用地址端（A、B）的两二进制编码可在两组各自的一个对应输出端以低 - 电平译出。 y 若将 C1（C2）或者 G1（G2）作为数据输入端，由 A、B 对输出端寻 a 址，155 还可以作双 1 线－4 线数据分配器。 155 还可作 3 线－8 线译码器及 1 线－8 线数据分配器。

Input clamping diodes are provided on these cir- Totem-pole (DM74LS155) cuits to minimize transmission-line effects and simplify sys- Open-collector (DM74LS156) tem design. Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Supply Voltage 7V the safety of the device cannot be guaranteed.

74LS155 Datasheet, 74LS155 Dual 2/4 Demultiplexer Datasheet. 74LS155 Pinout and Datasheet.

Design your application so that the product is used within the ranges guaranteed by Hitachi particularly for maximum rating, operating supply voltage range, heat radiation characteristics, installation conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used beyond the guaranteed ranges.

Part #: 74LS155. Download. File Size: 732Kbytes. Page: 17 Pages. Description: DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS. Manufacturer: Texas Instruments.