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SN7438

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具有集电极开路输出的 4 通道、2 输入、4.75V 至 5.25V 双极与非门

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SN7438

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产品详情

Technology family TTL Number of channels 4 Inputs per channel 2 IOL (max) (mA) 48 IOH (max) (mA) 0 Input type Bipolar Output type Open-collector Features High speed (tpd 10-50ns) Data rate (max) (Mbps) 70 Rating Catalog Operating temperature range (°C) 0 to 70
Technology family TTL Number of channels 4 Inputs per channel 2 IOL (max) (mA) 48 IOH (max) (mA) 0 Input type Bipolar Output type Open-collector Features High speed (tpd 10-50ns) Data rate (max) (Mbps) 70 Rating Catalog Operating temperature range (°C) 0 to 70
SOP (NS) 14 79.56 mm² (10.2 mm × 7.8 mm) SOIC (D) 14 51.9 mm² (8.65 mm × 6 mm) PDIP (N) 14 181.42 mm² (19.3 mm × 9.4 mm)
  • Package Options Include Plastic “Small Outline" Packages, Ceramic Chip Carriers and Flat Packages, and Plastic and Ceramic DIPs
  • Dependable Texas Instruments Quality and Reliability

 
  • Package Options Include Plastic “Small Outline" Packages, Ceramic Chip Carriers and Flat Packages, and Plastic and Ceramic DIPs
  • Dependable Texas Instruments Quality and Reliability

 

These devices contain four independent 2-input NAND buffer gates with open-collector outputs. The open-collector outputs require pull-up resistors to perform correctly. They may be connected to other open-collector outputs to implement active-low wired-OR or active-high wired-AND functions. Open-collector devices are often used to generate high VOH levels.

The SN5438, SN54LS38, and SN54S38 are characterized for operation over the full military temperature range of -55°C to 125°C. The SN7438, SN74LS38, and SN74S38 are characterized for operation from 0°C to 70°C.

 

These devices contain four independent 2-input NAND buffer gates with open-collector outputs. The open-collector outputs require pull-up resistors to perform correctly. They may be connected to other open-collector outputs to implement active-low wired-OR or active-high wired-AND functions. Open-collector devices are often used to generate high VOH levels.

The SN5438, SN54LS38, and SN54S38 are characterized for operation over the full military temperature range of -55°C to 125°C. The SN7438, SN74LS38, and SN74S38 are characterized for operation from 0°C to 70°C.

 
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* 数据表 Quadruple 2-Input Positive-NAND Buffers w/ Open-Collector Outputs 数据表 1988-3-1

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