CY74FCT2574T - 具有三态输出和串联阻尼电阻的八路 D 类寄存器

CY74FCT2574T是TI德州仪器公司的一款D类触发器产品，CY74FCT2574T是具有三态输出和串联阻尼电阻的八路 D 类寄存器，本站介绍了CY74FCT2574T的封装应用图解、特点和优点、功能等，并给出了与CY74FCT2574T相关的TI元器件型号供参考。

CY74FCT2574T - 具有三态输出和串联阻尼电阻的八路 D 类寄存器 - D类触发器 - 触发器/锁存器/寄存器 - 德州仪器

产品描述

The CY74FCT2574T is a high-speed, low-power, octal D-type flip-flop featuring separate D-type inputs for each flip-flop. On-chip termination resistors at the outputs reduce system noise caused by reflections. The CY74FCT2574T can replace the CY74FCT574T to reduce noise in an existing design. This device has 3-state outputs for bus-oriented applications. A buffered clock (CP) and output-enable (OE\) inputs are common to all flip-flops. The CY74FCT2574T is identical to the CY74FCT2374T, except that on the CY74FCT2574T all outputs are on one side of the package and all inputs are on the other side. The flip-flops in the CY74FCT2574T store the state of their individual D inputs that meet the setup-time and hold-time requirements on the low-to-high CP transition. When OE\ is low, the contents of the flip-flops are available at the outputs. When OE\ is high, the outputs are in the high-impedance state. The state of OE\ does not affect the state of the flip-flops.

This device is 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 and Pinout Compatible With FCT and F Logic
25- Output Series Resistors to Reduce Transmission-Line Reflection Noise
Reduced VOH (Typically = 3.3 V) Version 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
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
- 1000-V Charged-Device Model (C101)
3-State Outputs
12-mA Output Sink Current 15-mA Output Source Current
Edge-Triggered D-Type Inputs
250-MHz Typical Switching Rate

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