MC14553B-D

MC14553B-D - MC14553B 3Digit BCD Counter The MC14553B 3digit BCD counter consists of 3 negative edge triggered BCD counters that are cascaded

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© Semiconductor Components Industries, LLC, 2006 June, 2006 - Rev. 7 1 Publication Order Number: MC14553B/D MC14553B 3-Digit BCD Counter The MC14553B 3-digit BCD counter consists of 3 negative edge triggered BCD counters that are cascaded synchronously. A quad latch at the output of each counter permits storage of any given count. The information is then time division multiplexed, providing one BCD number or digit at a time. Digit select outputs provide display control. All outputs are TTL compatible. An on-chip oscillator provides the low-frequency scanning clock which drives the multiplexer output selector. This device is used in instrumentation counters, clock displays, digital panel meters, and as a building block for general logic applications. Features TTL Compatible Outputs On-Chip Oscillator Cascadable Clock Disable Input Pulse Shaping Permits Very Slow Rise Times on Input Clock Output Latches Master Reset Pb-Free Packages are Available* MAXIMUM RATINGS (Voltages Referenced to V SS ) Parameter Symbol Value Unit DC Supply Voltage Range V DD -0.5 to +18.0 V Input or Output Voltage Range (DC or Transient) V in , V out -0.5 to V DD + 0.5 V Input Current (DC or Transient) per Pin I in ± 10 mA Output Current (DC or Transient) per Pin I out +20 mA Power Dissipation, per Package (Note 1) P D 500 mW Ambient Temperature Range T A -55 to +125 ° C Storage Temperature Range T stg -65 to +150 ° C Lead Temperature (8-Second Soldering) T L 260 ° C Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 1. Temperature Derating: Plastic “P and D/DW” Packages: – 7.0 mW/ _ C From 65 _ C To 125 _ C This device contains protection circuitry to guard against damage due to high static voltages or electric fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high-impedance circuit. For proper operation, V in and V out should be constrained to the range V SS v (V in or V out ) v V DD . Unused inputs must always be tied to an appropriate logic voltage level (e.g., either V SS or V DD ). Unused outputs must be left open. *For additional information on our Pb-Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. Device Package Shipping ORDERING INFORMATION MC14553BCP PDIP-16 25 Units / Rail MC14553BDW SOIC-16 47 Units / Rail http://onsemi.com MC14553BCPG PDIP-16 (Pb-Free) 25 Units / Rail MARKING DIAGRAMS A = Assembly Location WL = Wafer Lot YY = Year WW = Work Week G = Pb-Free Package 1 SO-16W DW SUFFIX CASE 751G 16 1 MC14553B AWLYYWW Figure 1. Block Diagram 12 10 11 13 9 7 6 5 14 2 1 15 V DD = PIN 16 V SS = PIN 8 43 CLOCK LE DIS MR Q0 Q1 Q2 Q3 O.F.
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This note was uploaded on 10/19/2008 for the course ECE 2B taught by Professor York during the Winter '07 term at UCSB.

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MC14553B-D - MC14553B 3Digit BCD Counter The MC14553B 3digit BCD counter consists of 3 negative edge triggered BCD counters that are cascaded

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