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CD4014 Datasheet PDF - Intersil

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CD40147BMS CMOS encoder features priority encoding of the inputs to ensure that only the highest order data line is encoded. Ten data input lines (0-9) are encoded to four line (8,4, 2, 1) BCD. The highest priority line is line 9. All four output lines are logic 1 (VSS) when all input lines are logic 0. All inputs and outputs are buffered, and each output can drive one TTL low power Schottky load. The CD40147BMS is func tionally similar to the TTL 54/74147 if pin 15 is tied low.

• High Voltage Type (20V Rating)
• Encodes 10 Line to 4 Line BCD
• Active Low Inputs and Outputs
• 100% Tested for Quiescent Current at 20V
• 5V, 10V and 15V Parametric Ratings
• Maximum Input Current of 1µA at 18V Over Full Pack age Temperature Range; 100nA at 18V and +25oC
• Noise Margin (Over Full Package/Temperature Range) - 1V at VDD = 5V - 2V at VDD = 10V - 2.5V at VDD = 15V
• Standardized Symmetrical Output Characteristics
• Meets All Requirements of JEDEC Tentative Standard No. 13B, “Standard Specifications for Description of ‘B’ Series CMOS Devices”

• Keyboard Encoding
• 10 Line to BCD Encoding
• Range Selection

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