CY74FCT138T - 8 选 1 解码器

CY74FCT138T是TI德州仪器公司的一款解码器/编码器/多路复用器产品，CY74FCT138T是8 选 1 解码器，本站介绍了CY74FCT138T的封装应用图解、特点和优点、功能等，并给出了与CY74FCT138T相关的TI元器件型号供参考。

CY74FCT138T - 8 选 1 解码器 - 解码器/编码器/多路复用器 - 特殊逻辑 - 德州仪器

产品描述

The \x92FCT138T devices are 1-of-8 decoders. These devices accept three binary weighted inputs (A0, A1, A2) and, when enabled, provide eight mutually exclusive active-low outputs (O\0\x96O\7). The \x92FCT138T devices feature three enable inputs: two active low (E\1, E\2) and one active high (E3 ).

All outputs are high unless E\1 and E\2 are low and E3 is high. This multiple-enable function allows easy parallel expansion of the device to a 1-of-32 (five lines to 32 lines) decoder with just four \x92FCT138T devices and one inverter.

These devices are fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

产品特性

Function, Pinout, and Drive Compatible With FCT and F Logic
Reduced VOH (Typically = 3.3 V) Versions of Equivalent FCT Functions
Edge-Rate Control Circuitry for Significantly Improved Noise Characteristics
Ioff Supports Partial-Power-Down Mode Operation
Matched Rise and Fall Times
Fully Compatible With TTL Input and Output Logic Levels
Dual 1-of-8 Decoder With Enables
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
- 1000-V Charged-Device Model (C101)
CY54FCT138T
- 32-mA Output Sink Current
- 12-mA Output Source Current
CY74FCT138T
- 64-mA Output Sink Current
- 32-mA Output Source Current

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