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SN74LS248DW 데이터시트(PDF) 2 Page - Motorola, Inc |
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SN74LS248DW 데이터시트(HTML) 2 Page - Motorola, Inc |
2 / 8 page 5-403 FAST AND LS TTL DATA SN54/74LS247 • SN54/74LS248 • SN54/74LS249 SN54 / 74LS247 (TOP VIEW) 14 13 12 11 10 9 1 2 3 4 5 6 7 16 15 8 VCC B f g a b d c e C LAMP TEST RB OUT PUT RB IN PUT D A GND INPUTS INPUTS OUTPUTS f g a b c d e B C LT RBORBI D A BI/ 14 13 12 11 10 9 1 2 3 4 5 6 7 16 15 8 VCC B f g a b d c e C LAMP TEST RB OUT PUT RB IN PUT D A GND INPUTS INPUTS OUTPUTS f g a b c d e B C LT RBORBI D A BI/ SN54 / 74LS248 SN54 / 74LS259 (TOP VIEW) ALL CIRCUIT TYPES FEATURE LAMP INTENSITY MODULATION CAPABILITY DRIVER OUTPUTS TYPICAL POWER DISSIPATION TYPE ACTIVE LEVEL OUTPUT CONFIGURATION SINK CURRENT MAX VOLTAGE TYPICAL POWER DISSIPATION SN54LS247 low open-collector 12 mA 15 V 35 mW SN54LS248 high 2.0 k Ω pull-up 2.0 mA 5.5 V 125 mW SN54LS249 high open-collector 4.0 mA 5.5 V 40 mW SN74LS247 low open-collector 24 mA 15 V 35 mW SN74LS248 high 2.0 k Ω pull-up 6.0 mA 5.5 V 125 mW SN74LS249 high open-collector 8.0 mA 5.5 V 40 mW INPUT A (7) INPUT B INPUT C (1) (2) (6) INPUT D (4) BI/RBO BLANKING INPUT OR RIPPLEBLANKING OUTPUT LAMP TEST INPUT (3) RBI RIPPLEBLANKING INPUT (5) OUTPUT (13) a (12) OUTPUT b (11) OUTPUT c (10) OUTPUT d (9) OUTPUT e (15) OUTPUT f (14) OUTPUT g INPUT A (7) INPUT B INPUT C (1) (2) (6) INPUT D (4) BLANKING INPUT OR RIPPLEBLANKING OUTPUT LAMP TEST INPUT (3) RIPPLEBLANKING INPUT (5) OUTPUT (13) a (12) OUTPUT b (11) OUTPUT c (10) OUTPUT d (9) OUTPUT e (15) OUTPUT f (14) OUTPUT g LOGIC DIAGRAM LS247 LS248, LS249 |
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