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 http://onsemi.com MARKING DIAGRAMS
PDIP-16 P SUFFIX CASE 648 1 A WL YY WW G = Assembly Location = Wafer Lot = Year = Work Week = Pb-Free Package 16 MC14553BCP AWLYYWWG 1 TTL Compatible Outputs On-Chip Oscillator Cascadable Clock Disable Input Pulse Shaping Permits Very Slow Rise Times on Input Clock Output Latches Master Reset These Devices are Pb-Free and are RoHS Compliant NLV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC-Q100 Qualified and PPAP Capable 4 CIA 12 10 CLOCK LE DIS MR 3 CIB Q0 Q1 Q2 Q3 O.F. DS1 DS2 DS3 9 7 6 5 14 2 1 15 MAXIMUM RATINGS (Voltages Referenced to VSS)
Parameter DC Supply Voltage Range Input or Output Voltage Range (DC or Transient) Input Current (DC or Transient) per Pin Output Current (DC or Transient) per Pin Power Dissipation, per Package (Note 1) Ambient Temperature Range Storage Temperature Range Lead Temperature (8-Second Soldering) Symbol VDD Vin, Vout Iin Iout PD TA Tstg TL Value -0.5 to +18.0 -0.5 to VDD + 0.5 ±10 +20 500 -55 to +125 -65 to +150 260 Unit V V 11 13 mA mA mW °C °C °C VDD = PIN 16 VSS = PIN 8 Figure 1. Block Diagram ORDERING INFORMATION
Device MC14553BCPG Package PDIP-16 (Pb-Free) Shipping 500 Units / Rail 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, Vin and Vout should be constrained to the range VSS v (Vin or …
