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74147 - Priority Encoder

General Description

These TTL encoders feature priority decoding of the inputs to ensure that only the highest-order data line is encoded.

The ’147 and ’LS147 devices encode nine data lines to four-line (8-4-2-1) BCD.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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SN54147, SN54148, SN54LS147, SN54LS148 SN74147, SN74148 (TIM9907), SN74LS147, SN74LS148 10ĆLINE TO 4ĆLINE AND 8ĆLINE TO 3ĆLINE PRIORITY ENCODERS SDLS053B − OCTOBER 1976 − REVISED MAY 2004 ’147, ’LS147 D Encode 10-Line Decimal to 4-Line BCD D Applications Include: − Keyboard Encoding − Range Selection SN54147, SN54LS147 . . . J OR W PACKAGE SN74147, SN74LS147 . . . D OR N PACKAGE (TOP VIEW) ’148, ’LS148 D Encode 8 Data Lines to 3-Line Binary (Octal) D Applications Include: − n-Bit Encoding − Code Converters and Generators SN54148, SN54LS148 . . . J OR W PACKAGE SN74148, SN74LS148 . . . D, N, OR NS PACKAGE (TOP VIEW) 4 5 6 7 8 C B GND 1 2 3 4 5 6 7 8 16 VCC 15 NC 14 D 13 3 12 2 11 1 10 9 9A 4 5 6 7 EI A2 A1 GND 1 2 3 4 5 6 7 8 16 VCC 15 E0 14 GS 13 3 12 2 11 1 10 0 9 A0 SN54LS147 .