MC14553B

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. http://onsemi.com MARKING DIAGRAMS 16 PDIP–16 P SUFFIX CASE 648 MC14553BCP AWLYYWW 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 16 SOIC–16 DW SUFFIX CASE 751G 1 14553B AWLYYWW MAXIMUM RATINGS (Voltages Referenced to VSS) (Note 1.) Symbol VDD Vin, Vout Iin Iout PD TA Tstg TL 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 2.) Ambient Temperature Range Storage Temperature Range Lead Temperature (8–Second Soldering) 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 mA A = Assembly Location WL or L = Wafer Lot YY or ...