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DM74LS245N
文件大小:64 Kbytes
页数:6
品牌简称:FAIRCHILD / 仙童半导体
品牌全称:Fairchild Semiconductor / 飞兆半导体公司
品牌Logo: FAIRCHILD
品牌主页:www.fairchildsemi.com
功能描述:3-STATE Octal Bus Transceiver
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DM74LS245N Features

General Description

These octal bus transceivers are designed for asynchronous two-way communication between data buses. The control function implementation minimizes external timing requirements. The device allows data transmission from the A Bus to the B Bus or from the B Bus to the A Bus depending upon the logic level at the direction control (DIR) input. The enable input (G) can be used to disable the device so that the buses are effectively isolated.

Features

■Bi-Directional bus transceiver in a high-density 20-pin package

■3-STATE outputs drive bus lines directly

■PNP inputs reduce DC loading on bus lines

■Hysteresis at bus inputs improve noise margins

■Typical propagation delay times, port-to-port 8 ns

■Typical enable/disable times 17 ns

■IOL(sink current) 24 mA

■IOH(source current) −15 mA

DM74LS245N供应商库存(更新时间:2026-04-24 23:01)

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