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CY74FCT2245T

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具有三态输出和串联阻尼电阻的八通道总线收发器

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数据表

CY74FCT2245T

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产品详情

Supply voltage (min) (V) 4.75 Supply voltage (max) (V) 5.25 Number of channels 8 IOL (max) (mA) 12 IOH (max) (mA) -15 Input type TTL Output type TTL Features Damping resistors, Partial power down (Ioff), Very high speed (tpd 5-10ns) Technology family FCT Rating Catalog Operating temperature range (°C) -40 to 85
Supply voltage (min) (V) 4.75 Supply voltage (max) (V) 5.25 Number of channels 8 IOL (max) (mA) 12 IOH (max) (mA) -15 Input type TTL Output type TTL Features Damping resistors, Partial power down (Ioff), Very high speed (tpd 5-10ns) Technology family FCT Rating Catalog Operating temperature range (°C) -40 to 85
PDIP (N) 20 228.702 mm² 24.33 x 9.4 SOIC (DW) 20 131.84 mm² 12.8 x 10.3 SSOP (DBQ) 20 51.9 mm² 8.65 x 6 TSSOP (PW) 20 41.6 mm² 6.5 x 6.4
  • Function and Pinout Compatible With FCT and F Logic
  • 25- Output Series Resistors to Reduce Transmission-Line Reflection Noise
  • Edge-Rate Control Circuitry for Significantly Improved Noise Characteristics
  • Ioff Supports Partial-Power-Down Mode Operation
  • 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)
  • 12-mA Output Sink Current
    15-mA Output Source Current
  • 3-State Outputs
  • Function and Pinout Compatible With FCT and F Logic
  • 25- Output Series Resistors to Reduce Transmission-Line Reflection Noise
  • Edge-Rate Control Circuitry for Significantly Improved Noise Characteristics
  • Ioff Supports Partial-Power-Down Mode Operation
  • 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)
  • 12-mA Output Sink Current
    15-mA Output Source Current
  • 3-State Outputs

The CY74FCT2245T contains eight noninverting, bidirectional buffers with 3-state outputs intended for bus-oriented applications. On-chip termination resistors at the outputs reduce system noise caused by reflections. For this reason, the CY74FCT2245T can replace the CY74FCT245T in an existing design. The CY74FCT2245T current-sinking capability is 12 mA at the A and B ports.

The transmit/receive (T/R) input determines the direction of data flow through the bidirectional transceiver. Transmit (active high) enables data from A ports to B ports; receive (active low) enables data from B ports to A ports. The output-enable (OE\) input, when high, disables both the A and B ports by putting them in the high-impedance state.

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.

The CY74FCT2245T contains eight noninverting, bidirectional buffers with 3-state outputs intended for bus-oriented applications. On-chip termination resistors at the outputs reduce system noise caused by reflections. For this reason, the CY74FCT2245T can replace the CY74FCT245T in an existing design. The CY74FCT2245T current-sinking capability is 12 mA at the A and B ports.

The transmit/receive (T/R) input determines the direction of data flow through the bidirectional transceiver. Transmit (active high) enables data from A ports to B ports; receive (active low) enables data from B ports to A ports. The output-enable (OE\) input, when high, disables both the A and B ports by putting them in the high-impedance state.

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.
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类型 标题 下载最新的英语版本 日期
* 数据表 8-Bit Transceiver With 3-State Outputs 数据表 (Rev. B) 2001年 11月 2日
选择指南 Logic Guide (Rev. AB) 2017年 6月 12日
应用手册 Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 2015年 12月 2日
选择指南 逻辑器件指南 2014 (Rev. AA) 最新英语版本 (Rev.AB) 2014年 11月 17日
选择指南 《高级总线接口逻辑器件选择指南》 英语版 2010年 7月 7日
用户指南 LOGIC Pocket Data Book (Rev. B) 2007年 1月 16日
应用手册 选择正确的电平转换解决方案 (Rev. A) 英语版 (Rev.A) 2006年 3月 23日
应用手册 Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 2004年 7月 8日
用户指南 CYFCT Parameter Measurement Information 2001年 4月 2日

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用户指南: PDF | HTML
英语版 (Rev.B): PDF | HTML
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封装 引脚 下载
PDIP (N) 20 查看选项
SOIC (DW) 20 查看选项
SSOP (DBQ) 20 查看选项
TSSOP (PW) 20 查看选项
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包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

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