Intersil CD40147BMS
The CD40147BMS is functionally similar to the TTL 54/74147 if pin 15 is tied low. The CD40147BMS is supplied in these 16-lead outline packages: Braze Seal DIP Frit Seal DIP Ceramic Flatpack H4T H1E H6W CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.FEATURES
● 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 Package 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” 4 1 5 2 6 3 7 4 8 5 C 6 B 7 VSS 8 16 VDD 15 0 14 D 13 3 12 2 11 1 10 9 9 A Functional DiagramAPPLICATIONS
● Keyboard Encoding● 10 Line to BCD Encoding
● Range Selection 9 0 PRIORITY SELECT BCD ENCODER D C B A 23 22 21 20
DESCRIPTION
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.