產品詳細資料

Technology family LS Function Encoder Configuration 8:3,10:4 Number of channels 1 Operating temperature range (°C) 0 to 70 Rating Catalog
Technology family LS Function Encoder Configuration 8:3,10:4 Number of channels 1 Operating temperature range (°C) 0 to 70 Rating Catalog
PDIP (N) 16 181.42 mm² 19.3 x 9.4 SOIC (D) 16 59.4 mm² 9.9 x 6 SOP (NS) 16 79.56 mm² 10.2 x 7.8
  • '147, 'LS147
    • Encodes 10-Line Decimal to 4-Line BCD
    • Applications Include:
      • Keyboard Encoding
      • Range Selection
  • '148, 'LS148
    • Encodes 8 Data Lines to 3-Line Binary (Octal)
    • Applications Include:
      • N-Bit Encoding
      • Code Converters and Generators

NOTE: The SN54147, SN54LS147, SN54148, SN74147, SN74LS147, and SN74148 are obsolete and are no longer supplied.

  • '147, 'LS147
    • Encodes 10-Line Decimal to 4-Line BCD
    • Applications Include:
      • Keyboard Encoding
      • Range Selection
  • '148, 'LS148
    • Encodes 8 Data Lines to 3-Line Binary (Octal)
    • Applications Include:
      • N-Bit Encoding
      • Code Converters and Generators

NOTE: The SN54147, SN54LS147, SN54148, SN74147, SN74LS147, and SN74148 are obsolete and are no longer supplied.

These TTL encoders feature priority decoding of the inputs to ensure that only the highest-order data line is encoded. The '147 and 'LS147 encode nine data lines to four-line (8-4-2-1) BCD. The implied decimal zero condition requires no input condition as zero is encoded when all nine data lines are at a high logic level. The '148 and 'LS148 encode eight data lines to three-line (4-2-1) binary (octal). Cascading circuitry (enable input E1 and enable output E0) has been provided to allow octal expansion without the need for external circuitry. For all types, data inputs and outputs are active at the low logic level. All inputs are buffered to represent one normalized Series 54/74 or 54LS/74LS load, respectively.

These TTL encoders feature priority decoding of the inputs to ensure that only the highest-order data line is encoded. The '147 and 'LS147 encode nine data lines to four-line (8-4-2-1) BCD. The implied decimal zero condition requires no input condition as zero is encoded when all nine data lines are at a high logic level. The '148 and 'LS148 encode eight data lines to three-line (4-2-1) binary (octal). Cascading circuitry (enable input E1 and enable output E0) has been provided to allow octal expansion without the need for external circuitry. For all types, data inputs and outputs are active at the low logic level. All inputs are buffered to represent one normalized Series 54/74 or 54LS/74LS load, respectively.

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類型 標題 日期
* Data sheet SN54147, SN54148, SN54LS147, SN54LS148,SN74147, SN74148 (TIM9907), SN74LS147, SN datasheet (Rev. B) 2004年 5月 26日

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  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
內含資訊:
  • 晶圓廠位置
  • 組裝地點

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