54147

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 . . . FK PACKAGE (TOP VIEW) SN54LS148 . . . FK PACKAGE (TOP VIEW) 3 2 1 20 19 64 18 D 75 17 3 NC 6 16 NC 87 15 2 C8 14 1 9 10 11 12 13 6 3 2 1 20 19 4 18 GS 75 17 3 NC 6 16 NC EI 7 15 2 A2 8 14 1 9 10 11 12 13 B5 GND 4 NC NC A VCC 9 NC A1 5 GND 4 NC NC A0 VCC 0 E0 NC − No internal connection TYPE ’147 ’148 ’LS147 ’LS148 TYPICAL DATA DELAY 10 ns 10 ns 15 ns 15 ns TYPICAL POWER DISSIPATION 225 mW 190 mW 60 mW 60 mW NOTE: The SN54147, SN54LS147, SN54148, SN74147, SN74LS147, and SN74148 are obsolete and are no longer supplied. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments se...