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SN74AS245

現行

具有 3 態輸出的八路匯流排收發器

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產品規格表

SN74AS245

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 8 IOL (max) (mA) 64 IOH (max) (mA) -15 Input type TTL Output type TTL Features Over-voltage tolerant inputs, Very high speed (tpd 5-10ns) Technology family AS Rating Catalog Operating temperature range (°C) 0 to 70
Number of channels 8 IOL (max) (mA) 64 IOH (max) (mA) -15 Input type TTL Output type TTL Features Over-voltage tolerant inputs, Very high speed (tpd 5-10ns) Technology family AS Rating Catalog Operating temperature range (°C) 0 to 70
PDIP (N) 20 228.702 mm² (24.33 mm × 9.4 mm) SOP (NS) 20 98.28 mm² (12.6 mm × 7.8 mm) SOIC (DW) 20 131.84 mm² (12.8 mm × 10.3 mm)
  • 4.5-V to 5.5-V VCC Operation
  • Max tpd of 5.5 ns at 5 V
  • 3-State Outputs Drive Bus Lines Directly
  • pnp Inputs Reduce dc Loading
  • 4.5-V to 5.5-V VCC Operation
  • Max tpd of 5.5 ns at 5 V
  • 3-State Outputs Drive Bus Lines Directly
  • pnp Inputs Reduce dc Loading

These octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements.

The devices allow 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 output-enable (OE)\ input can be used to disable the device so that the buses are effectively isolated.

The -1 version of the SN74ALS245A is identical to the standard version, except that the recommended maximum IOL is increased to 48 mA. There is no -1 version of the SN54ALS245A.

These octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements.

The devices allow 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 output-enable (OE)\ input can be used to disable the device so that the buses are effectively isolated.

The -1 version of the SN74ALS245A is identical to the standard version, except that the recommended maximum IOL is increased to 48 mA. There is no -1 version of the SN54ALS245A.
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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 SN54ALS245A, SN54AS245, SN74ALS245A, SN74AS245 datasheet (Rev. A) 2003/1/13

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