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HCF40110BEY 데이터시트(PDF) 1 Page - STMicroelectronics |
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HCF40110BEY 데이터시트(HTML) 1 Page - STMicroelectronics |
1 / 10 page 1/10 October 2002 s SEPARATE CLOCK-UP AND CLOCK-DOWN LINES s CAPABLE OF DRIVING COMMON CATHODE LEDS AND OTHER DISPLAYS DIRECTLY s ALLOWS CASCADING WITHOUT ANY EXTERNAL CIRCUITRY s MAXIMUM INPUT CURRENT OF 1 µA AT 18 V (full package-temperature range) s QUIESCENT CURRENT SPECIFIED UP TO 20V s STANDARDIZED, SYMMETRICAL OUTPUT CHARACTERISTCS s 5V, 10V AND 15V PARAMETRIC RATINGS s INPUT LEAKAGE CURRENT II = 100nA (MAX) AT VDD = 18V TA = 25°C s 100% TESTED FOR QUIESCENT CURRENT s MEETS ALL REQUIREMENTS OF JEDEC JESD13B "STANDARD SPECIFICATIONS FOR DESCRIPTION OF B SERIES CMOS DEVICES" DESCRIPTION HCF40110B is a monolithic integrated circuit fabricated in Metal Oxide Semiconductor technology available in DIP package. HCF40110B is a dual-clocked up/down counter with a special preconditioning circuit that allows the counter to be clocked, via positive going inputs, up or down regardless of the states or timing (within 100 ns typ.) of the other clock line. The clock signal is fed into the control logic and Johnson counter after it is preconditioned. The outputs of the Johnson counter (which include anti-lock gating to avoid being locked at an illegal state) are fed into a latch. This data can be fed directly to the decoder through the latch or can be strobed to hold a particular count while the Johnson counter continues to be clocked. The decoder feeds a seven-segment bipolar output driver which can source up to 25mA to drive LEDs and other displays such as low-voltage fluorescent and incandescent lamps. A short duration negative-going pulse appears on the BORROW output when the count changes from 0 HCF40110B DECADE UP/DOWN COUNTER/DECODER/LATCH/DRIVER PIN CONNECTION ORDER CODES PACKAGE TUBE T & R DIP HCF40110BEY DIP |
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